fix(ai): store chatContextWindow as a JSON number, not a ::text string

chatContextWindow (#189) is the first numeric provider field routed through WorkspaceRepo.updateAiProviderSettings, whose patch builder cast every value as `${v}::text`. The DTO validates it as @IsInt(), so a JS number 200000 was stored as the JSON STRING "200000". The client guards require `typeof === "number"` (ai-chat-window.tsx, context-badge.tsx), so the `/ max` badge denominator never rendered and the whole feature silently no-opped. Branch the jsonb_build_object value cast by JS runtime type: numbers -> ::numeric (real JSON number), booleans -> ::boolean, everything else -> ::text (unchanged for the existing string fields). This is the root fix (store as a real number) rather than coercing on read, so every reader sees the correct type. Add a DB round-trip int-spec asserting jsonb_typeof(settings->'ai'->'provider'->'chatContextWindow') = 'number' and that the value re-reads as the number 200000, including the partial-merge path. CHANGELOG: Added entry for the chatContextWindow setting and a Changed entry for the badge's new "used / max" meaning. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
feat(ai-chat): context badge shows current/max (#189 )
2026-06-26 17:19:34 +03:00 · 2026-06-26 06:27:45 +03:00
45 changed files with 434 additions and 2548 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,16 +12,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

 ### Added

- **Custom pretty-links for shared pages (`/l/:alias`).** A page editor can give
-  any publicly shared page a short, memorable, workspace-scoped vanity address
-  backed by a new `share_aliases` table. Hitting `/l/<alias>` issues a `302`
-  (never `301`, since the target is retargetable) to the canonical
-  `/share/<key>/p/<slug>` page; an unknown, dangling, or no-longer-readable alias
-  serves the plain SPA index so that the existence of a name never leaks. An
-  alias can be moved to another page (with a confirm-reassign guard) and the
-  foreign key is `ON DELETE SET NULL`, so deleting the target leaves a dangling
-  alias any workspace member can reclaim. (#205)
-
 - **Persistent AI-chat history as the source of truth + server-side export.**
  An assistant turn is now persisted to the database step by step: the row is
  inserted upfront as `streaming` and updated as each agent step finishes, then
@@ -53,6 +43,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  OpenRouter, etc.; `openai` uses the official provider (real-OpenAI
  reasoning-model request shaping). Chosen explicitly rather than inferred from
  the base URL, since a custom URL can front real OpenAI too. (#175, #177)
+- **AI chat "Context window (tokens)" setting (`chatContextWindow`).** A new
+  admin field in AI settings that records the chat model's context-window size.
+  When set (> 0) it becomes the denominator of the header context-badge, which
+  now reads "used / max"; `0`/empty clears the limit and the badge shows only
+  the current context as before. There is no provider-independent way to read a
+  model's window automatically, so it is an explicit workspace-level value.
+  (#189)
 - **Per-MCP-server instructions in the agent prompt.** Each external MCP server
  now has an admin-authored `instructions` field ("how/when to use this server's
  tools") that is injected into the agent's system prompt next to that server's
@@ -71,6 +68,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  model's reasoning out of the box. An endpoint that is real OpenAI behind a
  custom base URL should set the new `chatApiStyle` "Protocol" to `openai`. (#177)

+- **AI chat header context-badge now shows "used / max".** When an admin sets
+  the new `chatContextWindow`, the badge displays the current context size over
+  the configured window (e.g. `120k / 200k`) instead of switching to a live
+  per-turn token counter during streaming. With no window configured the badge
+  keeps showing just the current context. (#189)
+
 - **Footnotes now reuse (Pandoc semantics).** Multiple `[^a]` references to the
  same id are ONE footnote — one number, one definition, several back-references
  — instead of being renamed to `a__2`, `a__3`. Duplicate `[^a]:` definitions are
--- a/apps/client/public/locales/en-US/translation.json
+++ b/apps/client/public/locales/en-US/translation.json
@@ -1168,7 +1168,10 @@
  "Built-in assistant persona": "Built-in assistant persona",
  "Minimize": "Minimize",
  "Current context size": "Current context size",
-  "Tokens generated this turn": "Tokens generated this turn",
+  "Context size / model limit": "Context size / model limit",
+  "Context window (tokens)": "Context window (tokens)",
+  "Shows used / total in the chat header badge; empty hides the total.": "Shows used / total in the chat header badge; empty hides the total.",
+  "e.g. 200000": "e.g. 200000",
  "AI agent": "AI agent",
  "Take a look at the current document": "Take a look at the current document",
  "AI agent is typing…": "AI agent is typing…",
@@ -1315,15 +1318,5 @@
  "Protocol": "Protocol",
  "How chat requests are sent and how reasoning is surfaced": "How chat requests are sent and how reasoning is surfaced",
  "OpenAI-compatible (surfaces reasoning)": "OpenAI-compatible (surfaces reasoning)",
-  "OpenAI (official)": "OpenAI (official)",
-  "Custom address": "Custom address",
-  "A short, memorable link you can point at any shared page.": "A short, memorable link you can point at any shared page.",
-  "Use 2-60 lowercase letters, digits and hyphens": "Use 2-60 lowercase letters, digits and hyphens",
-  "This address is already in use": "This address is already in use",
-  "Move custom address?": "Move custom address?",
-  "Move here": "Move here",
-  "The address \"{{alias}}\" currently points to \"{{title}}\". Move it to this page?": "The address \"{{alias}}\" currently points to \"{{title}}\". Move it to this page?",
-  "The address \"{{alias}}\" is already in use. Move it to this page?": "The address \"{{alias}}\" is already in use. Move it to this page?",
-  "Failed to set custom address": "Failed to set custom address",
-  "Failed to remove custom address": "Failed to remove custom address"
+  "OpenAI (official)": "OpenAI (official)"
 }
--- a/apps/client/public/locales/ru-RU/translation.json
+++ b/apps/client/public/locales/ru-RU/translation.json
@@ -705,7 +705,10 @@
  "Copy chat": "Копировать чат",
  "Created successfully": "Успешно создано",
  "Current context size": "Текущий размер контекста",
-  "Tokens generated this turn": "Токенов сгенерировано за ход",
+  "Context size / model limit": "Размер контекста / лимит модели",
+  "Context window (tokens)": "Размер окна контекста (токены)",
+  "Shows used / total in the chat header badge; empty hides the total.": "Показывает использовано/всего в шапке чата; пусто — скрыть лимит.",
+  "e.g. 200000": "напр. 200000",
  "Delete this chat?": "Удалить этот чат?",
  "Deleted successfully": "Успешно удалено",
  "Edited by AI agent on behalf of {{name}}": "Отредактировано AI-агентом от имени {{name}}",
@@ -1169,15 +1172,5 @@
  "Protocol": "Протокол",
  "How chat requests are sent and how reasoning is surfaced": "Как отправляются запросы чата и как показывается reasoning",
  "OpenAI-compatible (surfaces reasoning)": "OpenAI-совместимый (показывает reasoning)",
-  "OpenAI (official)": "OpenAI (официальный)",
-  "Custom address": "Пользовательский адрес",
-  "A short, memorable link you can point at any shared page.": "Короткая запоминающаяся ссылка, которую можно направить на любую опубликованную страницу.",
-  "Use 2-60 lowercase letters, digits and hyphens": "Используйте 2–60 строчных букв, цифр и дефисов",
-  "This address is already in use": "Этот адрес уже занят",
-  "Move custom address?": "Переместить пользовательский адрес?",
-  "Move here": "Переместить сюда",
-  "The address \"{{alias}}\" currently points to \"{{title}}\". Move it to this page?": "Адрес «{{alias}}» сейчас указывает на «{{title}}». Переместить его на эту страницу?",
-  "The address \"{{alias}}\" is already in use. Move it to this page?": "Адрес «{{alias}}» уже используется. Переместить его на эту страницу?",
-  "Failed to set custom address": "Не удалось задать пользовательский адрес",
-  "Failed to remove custom address": "Не удалось удалить пользовательский адрес"
+  "OpenAI (official)": "OpenAI (официальный)"
 }
--- a/apps/client/src/features/ai-chat/components/ai-chat-window.tsx
+++ b/apps/client/src/features/ai-chat/components/ai-chat-window.tsx
@@ -6,7 +6,7 @@ import {
  useRef,
  useState,
 } from "react";
-import { Group, Loader, Tooltip } from "@mantine/core";
+import { Group, Loader } from "@mantine/core";
 import {
  IconArrowsDiagonal,
  IconCheck,
@@ -39,6 +39,7 @@ import {
 } from "@/features/ai-chat/queries/ai-chat-query.ts";
 import ConversationList from "@/features/ai-chat/components/conversation-list.tsx";
 import ChatThread from "@/features/ai-chat/components/chat-thread.tsx";
+import { ContextBadge } from "@/features/ai-chat/components/context-badge.tsx";
 import { exportAiChat } from "@/features/ai-chat/services/ai-chat-service.ts";
 import { useChatSession } from "@/features/ai-chat/hooks/use-chat-session.ts";
 import {
@@ -60,13 +61,6 @@ const MIN_HEIGHT = 400;
 // Margin kept between the window and the viewport edges while dragging.
 const EDGE_MARGIN = 8;

-/** Compact token formatter: 1.2M / 3.4k / 950. */
-function formatTokens(n: number): string {
-  if (n >= 1_000_000) return `${(n / 1_000_000).toFixed(1)}M`;
-  if (n >= 1_000) return `${(n / 1_000).toFixed(1)}k`;
-  return String(n);
-}
-
 // Compute the initial top-right placement at the default size, fitted to the
 // current viewport. Reads `window` only when called (inside an effect).
 function computeInitialGeom() {
@@ -161,12 +155,6 @@ export default function AiChatWindow() {
  const { data: messageRows, isLoading: messagesLoading } =
    useAiChatMessagesQuery(activeChatId ?? undefined);

-  // Live turn-token total (reasoning + output) for the in-flight turn, pushed up
-  // (THROTTLED to ~8 Hz inside ChatThread) so the header badge ticks mid-stream.
-  // `null` means no turn is in flight -> the badge falls back to the persisted
-  // context size below.
-  const [liveTurnTokens, setLiveTurnTokens] = useState<number | null>(null);
-
  // The page the user is currently viewing. AiChatWindow lives in a pathless
  // parent layout route, so useParams() can't see :pageSlug. Match the full
  // pathname against the authenticated page route instead so "the current page"
@@ -306,6 +294,21 @@ export default function AiChatWindow() {
    return 0;
  }, [activeChatId, messageRows]);

+  // The model's context-window size (badge denominator), read from the most
+  // recent assistant row that carries it. Admin-configured in AI settings and
+  // stamped onto the turn server-side, so it travels with the message metadata —
+  // no client-side model resolution, and it survives public shares / per-role
+  // models automatically. 0 (no limit configured, or older rows) → the badge
+  // hides the denominator and shows only the current context size.
+  const maxContextTokens = useMemo(() => {
+    if (!activeChatId || !messageRows) return 0;
+    for (let i = messageRows.length - 1; i >= 0; i--) {
+      const max = messageRows[i].metadata?.maxContextTokens;
+      if (typeof max === "number" && max > 0) return max;
+    }
+    return 0;
+  }, [activeChatId, messageRows]);
+
  // On (re)open, settle the geometry before paint (useLayoutEffect → no
  // first-frame jump): compute an initial top-right placement the first time,
  // and re-clamp an existing geometry to the current viewport on later opens
@@ -495,23 +498,14 @@ export default function AiChatWindow() {
        )}

        <div style={{ flex: 1, display: "flex", justifyContent: "center" }}>
-          {/* While a turn streams, show the LIVE turn-token count (ticks ~8 Hz);
-              once it finishes, fall back to the persisted context size. Require
-              > 0 so the very first emit (an empty tail message, count 0) does not
-              flash a "0" badge before any token streams in (#151 review). */}
-          {liveTurnTokens !== null && liveTurnTokens > 0 ? (
-            <Tooltip label={t("Tokens generated this turn")} withArrow>
-              <span className={classes.badge}>
-                {formatTokens(liveTurnTokens)}
-              </span>
-            </Tooltip>
-          ) : contextTokens > 0 ? (
-            <Tooltip label={t("Current context size")} withArrow>
-              <span className={classes.badge}>
-                {formatTokens(contextTokens)}
-              </span>
-            </Tooltip>
-          ) : null}
+          {/* Context badge: always "current / max" context size (or just current
+              when no model limit is configured). It no longer flips to a live
+              per-turn generation counter mid-stream — that live feedback lives in
+              the chat body's "Thinking · N tokens" block. */}
+          <ContextBadge
+            contextTokens={contextTokens}
+            maxContextTokens={maxContextTokens}
+          />
        </div>

        <div style={{ display: "flex", alignItems: "center", gap: 1 }}>
@@ -634,7 +628,6 @@ export default function AiChatWindow() {
              assistantName={currentRole?.name}
              onTurnFinished={onTurnFinished}
              onServerChatId={onServerChatId}
-              onLiveTurnTokens={setLiveTurnTokens}
            />
          )}
        </div>
--- a/apps/client/src/features/ai-chat/components/chat-thread.tsx
+++ b/apps/client/src/features/ai-chat/components/chat-thread.tsx
@@ -20,7 +20,6 @@ import {
 } from "@/features/ai-chat/utils/role-launch.ts";
 import { describeChatError } from "@/features/ai-chat/utils/error-message.ts";
 import { extractServerChatId } from "@/features/ai-chat/utils/adopt-chat-id.ts";
-import { liveTurnTokens } from "@/features/ai-chat/utils/count-stream-tokens.ts";
 import {
  dequeue,
  enqueueMessage,
@@ -67,12 +66,6 @@ interface ChatThreadProps {
   *  Copy/export button available mid-stream). Distinct from onTurnFinished,
   *  which fires only at the terminal outcome. */
  onServerChatId?: (serverChatId?: string) => void;
-  /** Reports the live turn-token total (reasoning + output) for the in-flight
-   *  turn so the parent can show a header badge that ticks mid-stream. THROTTLED
-   *  here (~8 Hz) so the parent re-renders a handful of times a second, not on
-   *  every streamed delta. Called with `null` when no turn is in flight (the
-   *  parent then reverts the badge to the persisted context size). */
-  onLiveTurnTokens?: (tokens: number | null) => void;
 }

 /**
@@ -117,7 +110,6 @@ export default function ChatThread({
  assistantName,
  onTurnFinished,
  onServerChatId,
-  onLiveTurnTokens,
 }: ChatThreadProps) {
  const { t } = useTranslation();

@@ -328,53 +320,6 @@ export default function ChatThread({
  // the SAME on-screen banner text can be mirrored into the export (issue #160).
  const errorView = error ? describeChatError(error.message ?? "", t) : null;

-  // Report the live turn-token total to the parent header badge, THROTTLED to
-  // ~8 Hz so the parent re-renders a few times a second instead of on every
-  // streamed delta. The tail assistant message's reasoning+output (estimate while
-  // streaming, authoritative once a step reports usage) is the live figure. When
-  // the turn ends we emit a final exact value, then `null` so the parent reverts
-  // the badge to the persisted context size.
-  const lastEmitRef = useRef(0);
-  const emitTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
-  useEffect(() => {
-    if (!onLiveTurnTokens) return;
-    if (!isStreaming) {
-      // Turn ended (or never started): clear any pending throttle and revert.
-      if (emitTimerRef.current) {
-        clearTimeout(emitTimerRef.current);
-        emitTimerRef.current = null;
-      }
-      lastEmitRef.current = 0;
-      onLiveTurnTokens(null);
-      return;
-    }
-    const tail = messages[messages.length - 1];
-    const live = tail?.role === "assistant" ? liveTurnTokens(tail) : null;
-    const total = live ? live.reasoning + live.output : 0;
-    const now = Date.now();
-    const MIN_INTERVAL = 120; // ms (~8 Hz)
-    const elapsed = now - lastEmitRef.current;
-    if (elapsed >= MIN_INTERVAL) {
-      lastEmitRef.current = now;
-      onLiveTurnTokens(total);
-    } else if (!emitTimerRef.current) {
-      // Schedule a trailing emit so the FINAL value of a burst is not dropped.
-      emitTimerRef.current = setTimeout(() => {
-        emitTimerRef.current = null;
-        lastEmitRef.current = Date.now();
-        onLiveTurnTokens(total);
-      }, MIN_INTERVAL - elapsed);
-    }
-  }, [messages, isStreaming, onLiveTurnTokens]);
-
-  // Clear any pending throttle timer on unmount (chat switch via `key`) so a
-  // trailing emit can't fire into a torn-down thread's parent.
-  useEffect(() => {
-    return () => {
-      if (emitTimerRef.current) clearTimeout(emitTimerRef.current);
-    };
-  }, []);
-
  // A role was picked with autoStart=false: the role is bound but NOTHING was
  // sent, so chatId stays null and the empty state would keep showing the cards.
  // This flag hides the cards and reveals the composer (with the role indicated)
--- a/apps/client/src/features/ai-chat/components/context-badge.test.tsx
+++ b/apps/client/src/features/ai-chat/components/context-badge.test.tsx
@@ -0,0 +1,69 @@
+import { describe, it, expect } from "vitest";
+import { render, screen, fireEvent } from "@testing-library/react";
+import { MantineProvider } from "@mantine/core";
+import { ContextBadge, formatTokens } from "./context-badge";
+
+// matchMedia (read by MantineProvider) is stubbed globally in vitest.setup.ts.
+// Without an I18nextProvider, `t(key)` returns the key verbatim, so tooltip
+// labels assert against their English source strings.
+
+function renderBadge(props: {
+  contextTokens: number;
+  maxContextTokens?: number;
+}) {
+  return render(
+    <MantineProvider>
+      <ContextBadge {...props} />
+    </MantineProvider>,
+  );
+}
+
+describe("formatTokens", () => {
+  it("formats with k / M suffixes", () => {
+    expect(formatTokens(572)).toBe("572");
+    expect(formatTokens(200_000)).toBe("200.0k");
+    expect(formatTokens(1_500_000)).toBe("1.5M");
+  });
+});
+
+describe("ContextBadge", () => {
+  it("shows `current / max` when a limit is configured", () => {
+    renderBadge({ contextTokens: 572, maxContextTokens: 200_000 });
+    expect(screen.getByText("572 / 200.0k")).toBeDefined();
+  });
+
+  it("shows only the current size when no limit is configured", () => {
+    renderBadge({ contextTokens: 572, maxContextTokens: 0 });
+    expect(screen.getByText("572")).toBeDefined();
+    // No denominator rendered.
+    expect(screen.queryByText(/\//)).toBeNull();
+  });
+
+  it("treats an undefined limit as no limit", () => {
+    renderBadge({ contextTokens: 1234 });
+    expect(screen.getByText("1.2k")).toBeDefined();
+    expect(screen.queryByText(/\//)).toBeNull();
+  });
+
+  it("renders nothing until there is a current context size", () => {
+    const { container } = renderBadge({
+      contextTokens: 0,
+      maxContextTokens: 200_000,
+    });
+    expect(container.querySelector("span")).toBeNull();
+  });
+
+  it("never flips to a live per-turn counter (no live mode); shows context as-is even above max", () => {
+    // `current > max` (estimate drift / smaller-model role) is shown unclamped.
+    renderBadge({ contextTokens: 210_000, maxContextTokens: 200_000 });
+    expect(screen.getByText("210.0k / 200.0k")).toBeDefined();
+  });
+
+  it("exposes the limit tooltip label on hover", async () => {
+    renderBadge({ contextTokens: 572, maxContextTokens: 200_000 });
+    fireEvent.mouseEnter(screen.getByText("572 / 200.0k"));
+    expect(
+      await screen.findByText("Context size / model limit"),
+    ).toBeDefined();
+  });
+});
--- a/apps/client/src/features/ai-chat/components/context-badge.tsx
+++ b/apps/client/src/features/ai-chat/components/context-badge.tsx
@@ -0,0 +1,61 @@
+import { Tooltip } from "@mantine/core";
+import { useTranslation } from "react-i18next";
+import classes from "@/features/ai-chat/components/ai-chat-window.module.css";
+
+/** Compact token formatter: 1.2M / 3.4k / 950. */
+export function formatTokens(n: number): string {
+  if (n >= 1_000_000) return `${(n / 1_000_000).toFixed(1)}M`;
+  if (n >= 1_000) return `${(n / 1_000).toFixed(1)}k`;
+  return String(n);
+}
+
+interface ContextBadgeProps {
+  // Current context size for the active chat (tokens occupied in the model's
+  // window). 0 = unknown → nothing is rendered.
+  contextTokens: number;
+  // The model's context-window size (tokens), from AI settings. 0/undefined =
+  // no limit known → only the current size is shown (no denominator).
+  maxContextTokens?: number;
+}
+
+/**
+ * Header badge that ALWAYS shows the current context size, and — when the model's
+ * context-window size is configured — appends "/ max" so the badge reads
+ * "current / max" (e.g. `572 / 200k`). This is a single, stable meaning: unlike
+ * the previous design it never flips to a live per-turn generation counter while
+ * streaming (that live feedback lives in the chat body's "Thinking · N tokens").
+ *
+ * No limit configured (or older history rows without it) → the denominator is
+ * hidden and the badge shows the current size only, matching the prior at-rest
+ * behaviour. `context > max` (estimate drift, or a role on a smaller model) is
+ * shown as-is, without clamping.
+ */
+export function ContextBadge({
+  contextTokens,
+  maxContextTokens,
+}: ContextBadgeProps) {
+  const { t } = useTranslation();
+
+  // Nothing to show until the first persisted context figure exists.
+  if (!(contextTokens > 0)) return null;
+
+  const hasMax = typeof maxContextTokens === "number" && maxContextTokens > 0;
+  const label = hasMax
+    ? `${formatTokens(contextTokens)} / ${formatTokens(maxContextTokens)}`
+    : formatTokens(contextTokens);
+
+  return (
+    <Tooltip
+      label={
+        hasMax
+          ? t("Context size / model limit")
+          : t("Current context size")
+      }
+      withArrow
+    >
+      <span className={classes.badge}>{label}</span>
+    </Tooltip>
+  );
+}
+
+export default ContextBadge;
--- a/apps/client/src/features/ai-chat/types/ai-chat.types.ts
+++ b/apps/client/src/features/ai-chat/types/ai-chat.types.ts
@@ -113,9 +113,14 @@ export interface IAiChatMessageRow {
    };
    // Current context size for the turn = final-step (input+output) tokens, i.e.
    // how much the conversation occupies in the model's context window after this
-    // turn. Distinct from `usage` (legacy cumulative totalUsage). Shown in the
-    // floating window's header badge.
+    // turn. Distinct from `usage` (legacy cumulative totalUsage). Shown as the
+    // numerator of the floating window's "current / max" header badge.
    contextTokens?: number;
+    // The model's context-window size (tokens), admin-configured in AI settings
+    // and stamped onto the turn server-side. The denominator of the header badge.
+    // Absent/0 (older rows, or no limit configured) → the badge hides the
+    // denominator and shows only the current context size (`contextTokens`).
+    maxContextTokens?: number;
    // Set on an assistant row whose turn ended in a provider/stream error; the
    // raw provider error text (e.g. "402: ...") for inline display in the thread.
    error?: string;
--- a/apps/client/src/features/ai-chat/utils/count-stream-tokens.test.ts
+++ b/apps/client/src/features/ai-chat/utils/count-stream-tokens.test.ts
@@ -1,17 +1,5 @@
 import { describe, expect, it } from "vitest";
-import type { UIMessage } from "@ai-sdk/react";
-import {
-  estimateTokens,
-  liveTurnTokens,
-} from "@/features/ai-chat/utils/count-stream-tokens.ts";
-
-const msg = (parts: unknown[], metadata?: unknown): UIMessage =>
-  ({
-    id: Math.random().toString(),
-    role: "assistant",
-    parts,
-    metadata,
-  }) as UIMessage;
+import { estimateTokens } from "@/features/ai-chat/utils/count-stream-tokens.ts";

 describe("estimateTokens", () => {
  it("returns 0 for the empty string", () => {
@@ -25,147 +13,3 @@ describe("estimateTokens", () => {
    expect(estimateTokens("12345678")).toBe(2);
  });
 });
-
-describe("liveTurnTokens — estimate path", () => {
-  it("is all zeros for an undefined message", () => {
-    expect(liveTurnTokens(undefined)).toEqual({
-      reasoning: 0,
-      output: 0,
-      authoritative: false,
-    });
-  });
-
-  it("is all zeros for a parts-less message", () => {
-    expect(liveTurnTokens({ id: "x", role: "assistant" } as UIMessage)).toEqual({
-      reasoning: 0,
-      output: 0,
-      authoritative: false,
-    });
-  });
-
-  it("estimates output from text parts", () => {
-    // 8 chars -> 2 tokens.
-    const r = liveTurnTokens(msg([{ type: "text", text: "12345678" }]));
-    expect(r).toEqual({ reasoning: 0, output: 2, authoritative: false });
-  });
-
-  it("estimates reasoning from reasoning parts (kept separate from output)", () => {
-    const r = liveTurnTokens(
-      msg([
-        { type: "reasoning", text: "12345678" },
-        { type: "text", text: "abcd" },
-      ]),
-    );
-    expect(r).toEqual({ reasoning: 2, output: 1, authoritative: false });
-  });
-
-  it("accumulates across multiple text + reasoning parts (multi-step)", () => {
-    const r = liveTurnTokens(
-      msg([
-        { type: "reasoning", text: "abcd" }, // 1
-        { type: "text", text: "abcd" }, // 1
-        { type: "tool-getPage", state: "output-available" }, // ignored
-        { type: "reasoning", text: "abcd" }, // 1
-        { type: "text", text: "abcdefgh" }, // 2
-      ]),
-    );
-    expect(r).toEqual({ reasoning: 2, output: 3, authoritative: false });
-  });
-
-  it("ignores non text/reasoning parts (tools, step-start)", () => {
-    const r = liveTurnTokens(
-      msg([
-        { type: "step-start" },
-        { type: "tool-getPage", state: "input-available" },
-      ]),
-    );
-    expect(r).toEqual({ reasoning: 0, output: 0, authoritative: false });
-  });
-});
-
-describe("liveTurnTokens — authoritative path", () => {
-  it("returns authoritative usage verbatim, splitting reasoning out of output", () => {
-    // outputTokens INCLUDES reasoning in the AI SDK shape -> answer = 100 - 30.
-    const r = liveTurnTokens(
-      msg([{ type: "text", text: "estimate would be tiny" }], {
-        usage: { inputTokens: 500, outputTokens: 100, reasoningTokens: 30 },
-      }),
-    );
-    expect(r).toEqual({ reasoning: 30, output: 70, authoritative: true });
-  });
-
-  it("treats missing reasoningTokens as 0 and keeps full output", () => {
-    const r = liveTurnTokens(
-      msg([{ type: "text", text: "x" }], {
-        usage: { inputTokens: 10, outputTokens: 42 },
-      }),
-    );
-    expect(r).toEqual({ reasoning: 0, output: 42, authoritative: true });
-  });
-
-  it("never returns a negative output when reasoning exceeds reported output", () => {
-    const r = liveTurnTokens(
-      msg([], { usage: { outputTokens: 10, reasoningTokens: 40 } }),
-    );
-    expect(r).toEqual({ reasoning: 40, output: 0, authoritative: true });
-  });
-
-  it("falls back to the estimate when metadata has no usage object", () => {
-    const r = liveTurnTokens(
-      msg([{ type: "text", text: "abcd" }], { chatId: "c1" }),
-    );
-    expect(r).toEqual({ reasoning: 0, output: 1, authoritative: false });
-  });
-});
-
-describe("liveTurnTokens — combined authoritative + estimate (#163)", () => {
-  it("ticks the in-flight step above the completed-steps authoritative base", () => {
-    // The authoritative usage is the sum over COMPLETED steps (step 1). The
-    // CURRENT step is streaming and its text is NOT in `usage` yet, but it IS in
-    // the parts -> the running estimate must push the live figure above the base
-    // so the badge keeps growing between step boundaries.
-    const longText = "x".repeat(800); // 800 chars -> 200 est output tokens
-    const r = liveTurnTokens(
-      msg([{ type: "text", text: longText }], {
-        usage: { inputTokens: 500, outputTokens: 40 }, // step-1 base: 40 output
-      }),
-    );
-    // max(authOutput=40, estOutput=200) = 200 -> the counter ticks, not frozen.
-    expect(r.output).toBe(200);
-    expect(r.authoritative).toBe(true);
-  });
-
-  it("ticks reasoning of the in-flight step above the authoritative reasoning base", () => {
-    const longReasoning = "r".repeat(400); // 400 chars -> 100 est reasoning
-    const r = liveTurnTokens(
-      msg([{ type: "reasoning", text: longReasoning }], {
-        usage: { inputTokens: 100, outputTokens: 20, reasoningTokens: 20 },
-      }),
-    );
-    // reasoning: max(20, 100) = 100 ; output: max(max(0,20-20)=0, 0) = 0.
-    expect(r.reasoning).toBe(100);
-    expect(r.output).toBe(0);
-    expect(r.authoritative).toBe(true);
-  });
-
-  it("snaps to the authoritative figure once it exceeds the rough estimate", () => {
-    // Short on-screen text (estimate tiny) but a large authoritative output:
-    // the exact figure wins at the boundary (the counter never under-reports).
-    const r = liveTurnTokens(
-      msg([{ type: "text", text: "abcd" }], {
-        usage: { inputTokens: 10, outputTokens: 5000 },
-      }),
-    );
-    expect(r.output).toBe(5000);
-  });
-
-  it("is monotonic: max never drops below the authoritative base when the estimate is smaller", () => {
-    // Mirrors the legacy 'verbatim' tests: estimate < authoritative -> unchanged.
-    const r = liveTurnTokens(
-      msg([{ type: "text", text: "tiny" }], {
-        usage: { inputTokens: 500, outputTokens: 100, reasoningTokens: 30 },
-      }),
-    );
-    expect(r).toEqual({ reasoning: 30, output: 70, authoritative: true });
-  });
-});
--- a/apps/client/src/features/ai-chat/utils/count-stream-tokens.ts
+++ b/apps/client/src/features/ai-chat/utils/count-stream-tokens.ts
@@ -1,18 +1,16 @@
-import type { UIMessage } from "@ai-sdk/react";
-
 /**
- * Live token counting for a streaming AI-chat turn — split into REASONING
- * (thinking) and OUTPUT (answer) tokens, mirroring how Claude Code shows
- * `Thinking… · 60 tokens` next to its thinking indicator.
+ * Live token ESTIMATION for a streaming AI-chat turn.
 *
 * No provider streams exact per-token usage mid-stream, so the live number is a
- * CLIENT ESTIMATE (chars/≈4 heuristic) that is reconciled to AUTHORITATIVE usage
- * once the server attaches it on a step/turn boundary (see the server's
- * `chatStreamMetadata` + the client's read of `message.metadata.usage`). When
- * authoritative usage is present we return it verbatim (the number "jumps to
- * exact"); otherwise we return the running estimate. Pure + unit-testable: it
- * never runs a real BPE tokenizer (that would be O(n²) on the hot path, bloat the
+ * CLIENT ESTIMATE (chars/≈4 heuristic). It powers the chat body's
+ * `Thinking… · N tokens` indicator (see `ReasoningBlock`), which reconciles to
+ * the authoritative server usage once it lands. Pure + unit-testable: it never
+ * runs a real BPE tokenizer (that would be O(n²) on the hot path, bloat the
 * bundle, and be wrong for Gemini/Ollama anyway).
+ *
+ * The former header-badge `liveTurnTokens()` split was removed with #189 (the
+ * header badge now shows the stable "current / max" context size, not a live
+ * per-turn counter); the live feedback remains in `ReasoningBlock`.
 */

 /**
@@ -24,90 +22,3 @@ export function estimateTokens(text: string): number {
  if (!text) return 0;
  return Math.ceil(text.length / 4);
 }
-
-/** Authoritative per-step/turn usage the server attaches to message metadata. */
-export interface AuthoritativeUsage {
-  inputTokens?: number;
-  outputTokens?: number;
-  totalTokens?: number;
-  reasoningTokens?: number;
-}
-
-/** Live token split for a turn's tail (streaming) assistant message. */
-export interface LiveTurnTokens {
-  /** Thinking/reasoning tokens (estimate, or authoritative when available). */
-  reasoning: number;
-  /** Answer/output tokens (estimate, or authoritative when available). */
-  output: number;
-  /** True when the numbers come from authoritative server usage, not estimate. */
-  authoritative: boolean;
-}
-
-/** Read the authoritative usage off a UIMessage's metadata, if the server set it. */
-function metadataUsage(message: UIMessage): AuthoritativeUsage | undefined {
-  const meta = message?.metadata as
-    | { usage?: AuthoritativeUsage }
-    | undefined;
-  const usage = meta?.usage;
-  if (!usage || typeof usage !== "object") return undefined;
-  return usage;
-}
-
-/**
- * Token split for the given (streaming) assistant message.
- *
- * COMBINES the authoritative server usage with the running text estimate so the
- * counter ticks in real time AND lands exact. The server only attaches
- * `metadata.usage` at a step/turn boundary (`finish-step`/`finish`) and it is
- * CUMULATIVE over COMPLETED steps — it does NOT yet include the in-flight step.
- * So a multi-step turn that returned the authoritative figure verbatim would
- * FREEZE between boundaries and jump in steps (issue #163).
- *
- * Instead we always compute the running ESTIMATE (chars/≈4 over the message's
- * `reasoning`/`text` parts, which grows on every streamed delta) and take the
- * per-component MAX of the authoritative base and the estimate:
- *   - between boundaries the estimate of the in-flight step ticks the number up;
- *   - at a boundary the authoritative figure snaps it to exact;
- *   - because the server's usage is cumulative and we only ever take the max, the
- *     number is MONOTONIC — it never drops.
- *
- * Providers that don't stream reasoning text still surface a reasoning count once
- * the authoritative usage arrives (`max(reasoningTokens, 0)`); on the pure
- * estimate path (no usage yet) such a turn shows `reasoning: 0` until then.
- */
-export function liveTurnTokens(message: UIMessage | undefined): LiveTurnTokens {
-  if (!message) return { reasoning: 0, output: 0, authoritative: false };
-
-  // Running ESTIMATE over every reasoning/text part — grows on each delta. This
-  // includes the IN-FLIGHT step, which the authoritative usage does not cover yet.
-  let estReasoning = 0;
-  let estOutput = 0;
-  for (const part of message.parts ?? []) {
-    if (part.type === "reasoning") {
-      estReasoning += estimateTokens((part as { text?: string }).text ?? "");
-    } else if (part.type === "text") {
-      estOutput += estimateTokens((part as { text?: string }).text ?? "");
-    }
-  }
-
-  const usage = metadataUsage(message);
-  if (!usage) {
-    // No authoritative usage streamed yet: the estimate IS the live figure.
-    return { reasoning: estReasoning, output: estOutput, authoritative: false };
-  }
-
-  // Authoritative sum over COMPLETED steps. `outputTokens` already INCLUDES
-  // reasoning in the AI SDK usage shape, so subtract it out for the "answer"
-  // figure (never go negative if a provider reports them inconsistently).
-  const authReasoning = usage.reasoningTokens ?? 0;
-  const authOutput = Math.max(0, (usage.outputTokens ?? 0) - authReasoning);
-
-  // Per-component max: the in-flight step's estimate ticks above the completed-
-  // steps base between boundaries, and the authoritative figure wins once it
-  // exceeds the (rough) estimate at the next boundary. Monotonic by construction.
-  return {
-    reasoning: Math.max(authReasoning, estReasoning),
-    output: Math.max(authOutput, estOutput),
-    authoritative: true,
-  };
-}
--- a/apps/client/src/features/share/components/share-alias-section.tsx
+++ b/apps/client/src/features/share/components/share-alias-section.tsx
@@ -1,237 +0,0 @@
-import {
-  ActionIcon,
-  Button,
-  Group,
-  Modal,
-  Text,
-  TextInput,
-} from "@mantine/core";
-import { IconExternalLink } from "@tabler/icons-react";
-import { useEffect, useMemo, useRef, useState } from "react";
-import { useTranslation } from "react-i18next";
-import CopyTextButton from "@/components/common/copy.tsx";
-import { getAppUrl } from "@/lib/config.ts";
-import {
-  useRemoveShareAliasMutation,
-  useSetShareAliasMutation,
-  useShareAliasForPageQuery,
-} from "@/features/share/queries/share-query.ts";
-import { checkShareAliasAvailability } from "@/features/share/services/share-service.ts";
-import {
-  isValidShareAlias,
-  normalizeShareAlias,
-} from "@/features/share/share-alias.util.ts";
-
-interface ShareAliasSectionProps {
-  pageId: string;
-  readOnly: boolean;
-}
-
-// The prefix label shown next to the slug input, e.g. "docs.example.com/l/".
-function aliasPrefixLabel(): string {
-  const url = getAppUrl();
-  const host = url.replace(/^https?:\/\//, "").replace(/\/+$/, "");
-  return `${host}/l/`;
-}
-
-export default function ShareAliasSection({
-  pageId,
-  readOnly,
-}: ShareAliasSectionProps) {
-  const { t } = useTranslation();
-  const { data: currentAlias } = useShareAliasForPageQuery(pageId);
-  const setAliasMutation = useSetShareAliasMutation();
-  const removeAliasMutation = useRemoveShareAliasMutation();
-
-  const [value, setValue] = useState("");
-  const [availability, setAvailability] = useState<{
-    valid: boolean;
-    available: boolean;
-    currentPageId: string | null;
-  } | null>(null);
-  const [reassign, setReassign] = useState<{
-    alias: string;
-    currentPageTitle: string | null;
-  } | null>(null);
-
-  // Seed the input from the page's current alias (if any).
-  useEffect(() => {
-    setValue(currentAlias?.alias ?? "");
-  }, [currentAlias?.alias, pageId]);
-
-  const normalized = useMemo(() => normalizeShareAlias(value), [value]);
-  const isValid = isValidShareAlias(normalized);
-  const unchanged = currentAlias?.alias === normalized;
-
-  // Debounced availability probe (skips when invalid or unchanged).
-  const debounceRef = useRef<ReturnType<typeof setTimeout>>();
-  useEffect(() => {
-    setAvailability(null);
-    if (!isValid || unchanged) return;
-    debounceRef.current && clearTimeout(debounceRef.current);
-    debounceRef.current = setTimeout(async () => {
-      try {
-        const res = await checkShareAliasAvailability(normalized);
-        setAvailability({
-          valid: res.valid,
-          available: res.available,
-          currentPageId: res.currentPageId,
-        });
-      } catch {
-        setAvailability(null);
-      }
-    }, 400);
-    return () => {
-      debounceRef.current && clearTimeout(debounceRef.current);
-    };
-  }, [normalized, isValid, unchanged]);
-
-  const prettyLink = currentAlias?.alias
-    ? `${getAppUrl()}/l/${currentAlias.alias}`
-    : null;
-
-  const handleSave = async (confirmReassign = false) => {
-    try {
-      await setAliasMutation.mutateAsync({
-        pageId,
-        alias: normalized,
-        confirmReassign,
-      });
-      setReassign(null);
-    } catch (error: any) {
-      // The address already points at another page: prompt to move it here.
-      if (error?.status === 409 || error?.response?.status === 409) {
-        const data = error?.response?.data;
-        if (data?.code === "ALIAS_REASSIGN_REQUIRED") {
-          setReassign({
-            alias: normalized,
-            currentPageTitle: data?.currentPageTitle ?? null,
-          });
-        }
-      }
-    }
-  };
-
-  const handleRemove = async () => {
-    if (!currentAlias?.id) return;
-    await removeAliasMutation.mutateAsync(currentAlias.id);
-    setValue("");
-  };
-
-  const showInvalid = normalized.length > 0 && !isValid;
-  const showTaken =
-    isValid && !unchanged && availability && !availability.available;
-
-  return (
-    <>
-      <Text size="sm" fw={500} mt="md">
-        {t("Custom address")}
-      </Text>
-      <Text size="xs" c="dimmed" mb={4}>
-        {t("A short, memorable link you can point at any shared page.")}
-      </Text>
-
-      {prettyLink && (
-        <Group my="xs" gap={4} wrap="nowrap">
-          <TextInput
-            variant="filled"
-            value={prettyLink}
-            readOnly
-            rightSection={<CopyTextButton text={prettyLink} />}
-            style={{ width: "100%" }}
-          />
-          <ActionIcon
-            component="a"
-            variant="default"
-            target="_blank"
-            href={prettyLink}
-            size="sm"
-          >
-            <IconExternalLink size={16} />
-          </ActionIcon>
-        </Group>
-      )}
-
-      <TextInput
-        value={value}
-        onChange={(e) => setValue(e.currentTarget.value)}
-        // Show the canonical form once the user pauses so what they type maps
-        // visibly to what gets stored.
-        onBlur={() => setValue(normalized)}
-        leftSection={
-          <Text size="xs" c="dimmed" pl={4} style={{ whiteSpace: "nowrap" }}>
-            {aliasPrefixLabel()}
-          </Text>
-        }
-        leftSectionWidth={Math.min(aliasPrefixLabel().length * 7 + 12, 180)}
-        placeholder={t("my-page")}
-        disabled={readOnly}
-        error={
-          showInvalid
-            ? t("Use 2-60 lowercase letters, digits and hyphens")
-            : showTaken
-              ? t("This address is already in use")
-              : undefined
-        }
-      />
-
-      <Group mt="xs" gap="xs">
-        <Button
-          size="compact-sm"
-          onClick={() => handleSave(false)}
-          loading={setAliasMutation.isPending}
-          disabled={readOnly || !isValid || unchanged}
-        >
-          {t("Save")}
-        </Button>
-        {currentAlias?.id && (
-          <Button
-            size="compact-sm"
-            variant="default"
-            color="red"
-            onClick={handleRemove}
-            loading={removeAliasMutation.isPending}
-            disabled={readOnly}
-          >
-            {t("Remove")}
-          </Button>
-        )}
-      </Group>
-
-      <Modal
-        opened={!!reassign}
-        onClose={() => setReassign(null)}
-        title={t("Move custom address?")}
-        centered
-        size="sm"
-      >
-        <Text size="sm">
-          {reassign?.currentPageTitle
-            ? t(
-                'The address "{{alias}}" currently points to "{{title}}". Move it to this page?',
-                {
-                  alias: reassign?.alias,
-                  title: reassign?.currentPageTitle,
-                },
-              )
-            : t(
-                'The address "{{alias}}" is already in use. Move it to this page?',
-                { alias: reassign?.alias },
-              )}
-        </Text>
-        <Group justify="flex-end" mt="md">
-          <Button variant="default" onClick={() => setReassign(null)}>
-            {t("Cancel")}
-          </Button>
-          <Button
-            color="red"
-            onClick={() => handleSave(true)}
-            loading={setAliasMutation.isPending}
-          >
-            {t("Move here")}
-          </Button>
-        </Group>
-      </Modal>
-    </>
-  );
-}
--- a/apps/client/src/features/share/components/share-modal.tsx
+++ b/apps/client/src/features/share/components/share-modal.tsx
@@ -25,7 +25,6 @@ import CopyTextButton from "@/components/common/copy.tsx";
 import { getAppUrl } from "@/lib/config.ts";
 import { buildPageUrl } from "@/features/page/page.utils.ts";
 import classes from "@/features/share/components/share.module.css";
-import ShareAliasSection from "@/features/share/components/share-alias-section.tsx";
 import { useAtom } from "jotai";
 import { workspaceAtom } from "@/features/user/atoms/current-user-atom.ts";
 import { useSpaceQuery } from "@/features/space/queries/space-query.ts";
@@ -254,9 +253,6 @@ export default function ShareModal({ readOnly }: ShareModalProps) {
                    disabled={readOnly}
                  />
                </Group>
-                {pageId && (
-                  <ShareAliasSection pageId={pageId} readOnly={readOnly} />
-                )}
              </>
            )}
          </>
--- a/apps/client/src/features/share/queries/share-query.ts
+++ b/apps/client/src/features/share/queries/share-query.ts
@@ -10,8 +10,6 @@ import { useTranslation } from "react-i18next";
 import {
  ICreateShare,
  IShare,
-  IShareAlias,
-  ISetShareAlias,
  ISharedItem,
  ISharedPage,
  ISharedPageTree,
@@ -22,14 +20,11 @@ import {
 import {
  createShare,
  deleteShare,
-  getShareAliasForPage,
  getSharedPageTree,
  getShareForPage,
  getShareInfo,
  getSharePageInfo,
  getShares,
-  removeShareAlias,
-  setShareAlias,
  updateShare,
 } from "@/features/share/services/share-service.ts";
 import { IPagination, QueryParams } from "@/lib/types.ts";
@@ -175,72 +170,6 @@ export function useDeleteShareMutation() {
  });
 }

-export function useShareAliasForPageQuery(
-  pageId: string,
-): UseQueryResult<IShareAlias | null, Error> {
-  return useQuery({
-    // The endpoint resolves to null when the page has no alias; normalize the
-    // absence so React Query never sees `undefined`.
-    queryKey: ["share-alias-for-page", pageId],
-    queryFn: async () => (await getShareAliasForPage(pageId)) ?? null,
-    enabled: !!pageId,
-    staleTime: 60 * 1000,
-    retry: false,
-  });
-}
-
-export function useSetShareAliasMutation() {
-  const { t } = useTranslation();
-  const queryClient = useQueryClient();
-
-  return useMutation<IShareAlias, Error, ISetShareAlias>({
-    mutationFn: (data) => setShareAlias(data),
-    onSuccess: () => {
-      queryClient.invalidateQueries({
-        predicate: (item) =>
-          ["share-alias-for-page", "share-list"].includes(
-            item.queryKey[0] as string,
-          ),
-      });
-    },
-    onError: (error) => {
-      // A 409 reassign-required is handled inline by the modal (it shows the
-      // "move address here?" confirmation), so don't surface a generic toast.
-      if (error?.["status"] === 409) return;
-      notifications.show({
-        message:
-          error?.["response"]?.data?.message || t("Failed to set custom address"),
-        color: "red",
-      });
-    },
-  });
-}
-
-export function useRemoveShareAliasMutation() {
-  const { t } = useTranslation();
-  const queryClient = useQueryClient();
-
-  return useMutation<void, Error, string>({
-    mutationFn: (aliasId) => removeShareAlias(aliasId),
-    onSuccess: () => {
-      queryClient.invalidateQueries({
-        predicate: (item) =>
-          ["share-alias-for-page", "share-list"].includes(
-            item.queryKey[0] as string,
-          ),
-      });
-    },
-    onError: (error) => {
-      notifications.show({
-        message:
-          error?.["response"]?.data?.message ||
-          t("Failed to remove custom address"),
-        color: "red",
-      });
-    },
-  });
-}
-
 export function useGetSharedPageTreeQuery(
  shareId: string,
 ): UseQueryResult<ISharedPageTree, Error> {
--- a/apps/client/src/features/share/services/share-service.ts
+++ b/apps/client/src/features/share/services/share-service.ts
@@ -4,9 +4,6 @@ import { IPage } from "@/features/page/types/page.types";
 import {
  ICreateShare,
  IShare,
-  IShareAlias,
-  IShareAliasAvailability,
-  ISetShareAlias,
  ISharedItem,
  ISharedPage,
  ISharedPageTree,
@@ -60,33 +57,3 @@ export async function getSharedPageTree(
  const req = await api.post<ISharedPageTree>("/shares/tree", { shareId });
  return req.data;
 }
-
-export async function getShareAliasForPage(
-  pageId: string,
-): Promise<IShareAlias | null> {
-  const req = await api.post<IShareAlias | null>("/share-aliases/for-page", {
-    pageId,
-  });
-  return req.data;
-}
-
-export async function setShareAlias(
-  data: ISetShareAlias,
-): Promise<IShareAlias> {
-  const req = await api.post<IShareAlias>("/share-aliases/set", data);
-  return req.data;
-}
-
-export async function removeShareAlias(aliasId: string): Promise<void> {
-  await api.post("/share-aliases/remove", { aliasId });
-}
-
-export async function checkShareAliasAvailability(
-  alias: string,
-): Promise<IShareAliasAvailability> {
-  const req = await api.post<IShareAliasAvailability>(
-    "/share-aliases/availability",
-    { alias },
-  );
-  return req.data;
-}
--- a/apps/client/src/features/share/share-alias.util.test.ts
+++ b/apps/client/src/features/share/share-alias.util.test.ts
@@ -1,32 +0,0 @@
-import { describe, it, expect } from "vitest";
-import {
-  isValidShareAlias,
-  normalizeShareAlias,
-} from "@/features/share/share-alias.util.ts";
-
-// Mirrors the server-side util so the modal's live feedback matches what the
-// server will accept/store.
-describe("normalizeShareAlias", () => {
-  it("lowercases, trims and maps separators to single hyphens", () => {
-    expect(normalizeShareAlias("  My  Cool_Page ")).toBe("my-cool-page");
-  });
-
-  it("collapses repeated hyphens and trims edges", () => {
-    expect(normalizeShareAlias("--a---b--")).toBe("a-b");
-  });
-});
-
-describe("isValidShareAlias", () => {
-  it("accepts ascii hyphen-separated slugs of length 2..60", () => {
-    expect(isValidShareAlias("hello-world")).toBe(true);
-    expect(isValidShareAlias("a".repeat(60))).toBe(true);
-  });
-
-  it("rejects too short, edge/double hyphens, uppercase and non-ascii", () => {
-    expect(isValidShareAlias("a")).toBe(false);
-    expect(isValidShareAlias("-a")).toBe(false);
-    expect(isValidShareAlias("a--b")).toBe(false);
-    expect(isValidShareAlias("Hello")).toBe(false);
-    expect(isValidShareAlias("привет")).toBe(false);
-  });
-});
--- a/apps/client/src/features/share/share-alias.util.ts
+++ b/apps/client/src/features/share/share-alias.util.ts
@@ -1,26 +0,0 @@
-/**
- * Client copy of the vanity share-alias helpers. Kept in sync with the server
- * (`apps/server/src/core/share/share-alias.util.ts`) so live input feedback
- * matches what the server will store/accept. ASCII-only, lowercase, hyphen
- * separated, length 2..60.
- */
-
-// Normalize a user-provided vanity alias into canonical ASCII storage form.
-export function normalizeShareAlias(raw: string): string {
-  return (raw ?? "")
-    .trim()
-    .toLowerCase()
-    .replace(/[\s_]+/g, "-")
-    .replace(/-{2,}/g, "-")
-    .replace(/^-+|-+$/g, "");
-}
-
-const ALIAS_RE = /^[a-z0-9]+(?:-[a-z0-9]+)*$/;
-export function isValidShareAlias(alias: string): boolean {
-  return (
-    typeof alias === "string" &&
-    alias.length >= 2 &&
-    alias.length <= 60 &&
-    ALIAS_RE.test(alias)
-  );
-}
--- a/apps/client/src/features/share/types/share.types.ts
+++ b/apps/client/src/features/share/types/share.types.ts
@@ -75,30 +75,6 @@ export interface IShareInfoInput {
  pageId: string;
 }

-// Vanity /l/:alias pointer.
-export interface IShareAlias {
-  id: string;
-  workspaceId: string;
-  alias: string;
-  pageId: string | null;
-  creatorId: string | null;
-  createdAt: string;
-  updatedAt: string;
-}
-
-export interface ISetShareAlias {
-  pageId: string;
-  alias: string;
-  confirmReassign?: boolean;
-}
-
-export interface IShareAliasAvailability {
-  alias: string;
-  valid: boolean;
-  available: boolean;
-  currentPageId: string | null;
-}
-
 export interface ISharedPageTree {
  share: IShare;
  pageTree: Partial<IPage[]>;
--- a/apps/client/src/features/workspace/components/settings/components/ai-provider-settings.tsx
+++ b/apps/client/src/features/workspace/components/settings/components/ai-provider-settings.tsx
@@ -7,6 +7,7 @@ import {
  Button,
  Group,
  Modal,
+  NumberInput,
  Paper,
  PasswordInput,
  Select,
@@ -85,6 +86,9 @@ const formSchema = z.object({
  chatModel: z.string(),
  // Chat provider implementation (reasoning surfacing). Default openai-compatible.
  chatApiStyle: z.enum(["openai-compatible", "openai"]),
+  // Model context-window size (tokens) shown as the chat header badge's "max".
+  // Empty string = no limit (NumberInput emits "" when cleared).
+  chatContextWindow: z.union([z.number(), z.literal("")]),
  // Cheap model id for the anonymous public-share assistant; empty = use chatModel.
  publicShareChatModel: z.string(),
  // Agent-role id whose persona the public-share assistant adopts; empty =
@@ -312,6 +316,7 @@ export default function AiProviderSettings() {
    initialValues: {
      chatModel: "",
      chatApiStyle: "openai-compatible" as ChatApiStyle,
+      chatContextWindow: "" as number | "",
      publicShareChatModel: "",
      publicShareAssistantRoleId: "",
      embeddingModel: "",
@@ -335,6 +340,10 @@ export default function AiProviderSettings() {
    form.setValues({
      chatModel: settings.chatModel ?? "",
      chatApiStyle: settings.chatApiStyle ?? "openai-compatible",
+      // 0/unset = no limit → show an empty field (not a literal "0").
+      chatContextWindow: settings.chatContextWindow
+        ? settings.chatContextWindow
+        : "",
      publicShareChatModel: settings.publicShareChatModel ?? "",
      publicShareAssistantRoleId: settings.publicShareAssistantRoleId ?? "",
      embeddingModel: settings.embeddingModel ?? "",
@@ -365,6 +374,11 @@ export default function AiProviderSettings() {
      driver: "openai",
      chatModel: values.chatModel,
      chatApiStyle: values.chatApiStyle,
+      // Empty → 0, which clears the limit server-side (badge shows current only).
+      chatContextWindow:
+        typeof values.chatContextWindow === "number"
+          ? values.chatContextWindow
+          : 0,
      // Cheap model id for the anonymous public-share assistant; empty falls
      // back to chatModel server-side.
      publicShareChatModel: values.publicShareChatModel,
@@ -785,6 +799,22 @@ export default function AiProviderSettings() {
          {...form.getInputProps("chatApiStyle")}
        />

+        <NumberInput
+          mt="sm"
+          label={t("Context window (tokens)")}
+          description={t(
+            "Shows used / total in the chat header badge; empty hides the total.",
+          )}
+          placeholder={t("e.g. 200000")}
+          min={0}
+          step={1000}
+          allowDecimal={false}
+          allowNegative={false}
+          thousandSeparator=" "
+          disabled={isLoading}
+          {...form.getInputProps("chatContextWindow")}
+        />
+
        {/* Anonymous public-share assistant: a single master toggle + an
            optional cheaper model id. Reuses this card's driver/URL/key. */}
        <Group justify="space-between" align="center" wrap="nowrap" mt="md">
--- a/apps/client/src/features/workspace/services/ai-settings-service.ts
+++ b/apps/client/src/features/workspace/services/ai-settings-service.ts
@@ -23,6 +23,9 @@ export interface IAiSettings {
  driver?: AiDriver;
  chatModel?: string;
  chatApiStyle?: ChatApiStyle;
+  // Chat model context-window size (tokens); shown as the "max" in the chat
+  // header context badge. 0/unset = no limit (badge shows the current size only).
+  chatContextWindow?: number;
  // Cheap model id for the anonymous public-share assistant; empty = chatModel.
  publicShareChatModel?: string;
  // Agent-role id whose persona the public-share assistant adopts; empty =
@@ -57,6 +60,8 @@ export interface IAiSettingsUpdate {
  driver?: AiDriver;
  chatModel?: string;
  chatApiStyle?: ChatApiStyle;
+  // Chat model context-window size (tokens); 0 clears the limit.
+  chatContextWindow?: number;
  publicShareChatModel?: string;
  // Agent-role id whose persona the public-share assistant adopts; empty =
  // built-in locked persona.
--- a/apps/server/src/core/ai-chat/ai-chat.service.spec.ts
+++ b/apps/server/src/core/ai-chat/ai-chat.service.spec.ts
@@ -292,6 +292,26 @@ describe('flushAssistant', () => {
    expect(f.metadata.contextTokens).toBe(15);
  });

+  it('completed: writes maxContextTokens when the model limit is > 0', () => {
+    const f = flushAssistant([toolStep], '', 'completed', {
+      contextTokens: 15,
+      maxContextTokens: 200_000,
+    });
+    expect(f.metadata.maxContextTokens).toBe(200_000);
+  });
+
+  it('omits maxContextTokens when the limit is unset or 0', () => {
+    const unset = flushAssistant([toolStep], '', 'completed', {
+      contextTokens: 15,
+    });
+    expect('maxContextTokens' in unset.metadata).toBe(false);
+    const zero = flushAssistant([toolStep], '', 'completed', {
+      contextTokens: 15,
+      maxContextTokens: 0,
+    });
+    expect('maxContextTokens' in zero.metadata).toBe(false);
+  });
+
  it('error: records the error and a derived finishReason', () => {
    const f = flushAssistant([], 'partial answer', 'error', { error: 'boom' });
    expect(f.status).toBe('error');
--- a/apps/server/src/core/ai-chat/ai-chat.service.ts
+++ b/apps/server/src/core/ai-chat/ai-chat.service.ts
@@ -616,6 +616,9 @@ export class AiChatService implements OnModuleInit {
              contextTokens:
                (usage?.inputTokens ?? 0) + (usage?.outputTokens ?? 0) ||
                undefined,
+              // Admin-configured context-window size for this model (badge max).
+              // Resolved once per turn above; written to metadata only when > 0.
+              maxContextTokens: resolved?.chatContextWindow,
            }),
          );
          // Lifecycle: release the external MCP clients leased for this turn.
@@ -1223,6 +1226,10 @@ export function flushAssistant(
    finishReason?: string;
    usage?: ChatStreamUsage | StreamUsage | undefined;
    contextTokens?: number;
+    // Admin-configured context-window size (tokens) for this turn's model; the
+    // denominator of the client's "current / max" header badge. Written only
+    // when > 0 (0/unset = no limit known → the badge shows current only).
+    maxContextTokens?: number;
    error?: string;
  },
 ): AssistantFlush {
@@ -1253,6 +1260,9 @@ export function flushAssistant(
      normalizeStreamUsage(extra.usage as StreamUsage) ?? extra.usage;
  }
  if (extra?.contextTokens) metadata.contextTokens = extra.contextTokens;
+  if (extra?.maxContextTokens && extra.maxContextTokens > 0) {
+    metadata.maxContextTokens = extra.maxContextTokens;
+  }
  if (extra?.error) metadata.error = extra.error;

  return {
--- a/apps/server/src/core/share/dto/share-alias.dto.ts
+++ b/apps/server/src/core/share/dto/share-alias.dto.ts
@@ -1,44 +0,0 @@
-import {
-  IsBoolean,
-  IsNotEmpty,
-  IsOptional,
-  IsString,
-} from 'class-validator';
-
-/**
- * Create/retarget a vanity alias for a page. `confirmReassign` is the
- * two-step guard for the "address already points at another page" case: the
- * first call without it gets a 409 carrying the current target, the client
- * confirms, and retries with `confirmReassign: true`.
- */
-export class SetShareAliasDto {
-  @IsString()
-  @IsNotEmpty()
-  pageId: string;
-
-  @IsString()
-  @IsNotEmpty()
-  alias: string;
-
-  @IsBoolean()
-  @IsOptional()
-  confirmReassign?: boolean;
-}
-
-export class RemoveShareAliasDto {
-  @IsString()
-  @IsNotEmpty()
-  aliasId: string;
-}
-
-export class ShareAliasAvailabilityDto {
-  @IsString()
-  @IsNotEmpty()
-  alias: string;
-}
-
-export class ShareAliasForPageDto {
-  @IsString()
-  @IsNotEmpty()
-  pageId: string;
-}
--- a/apps/server/src/core/share/share-alias-redirect.controller.spec.ts
+++ b/apps/server/src/core/share/share-alias-redirect.controller.spec.ts
@@ -1,252 +0,0 @@
-import * as fs from 'node:fs';
-
-// `@sindresorhus/slugify` is ESM-only and not in jest's transformIgnorePatterns,
-// so the real module fails to parse under ts-jest. Stub it with a minimal,
-// deterministic slugifier — this spec asserts the controller's slug *assembly*
-// (`<title-slug>-<slugId>`, 70-char clamp, `untitled` fallback), not the upstream
-// slug algorithm. The factory keeps the real ESM module from ever being loaded.
-jest.mock('@sindresorhus/slugify', () => ({
-  __esModule: true,
-  default: (input: string) =>
-    String(input)
-      .toLowerCase()
-      .trim()
-      .replace(/[^a-z0-9]+/g, '-')
-      .replace(/^-+|-+$/g, ''),
-}));
-
-import { ShareAliasRedirectController } from './share-alias-redirect.controller';
-
-/**
- * Routing/leak guard for the PUBLIC `GET /l/:alias` resolver.
- *
- * This is the most security-sensitive surface of the alias feature: an
- * unauthenticated route that MUST serve the plain SPA index (exactly like any
- * unknown path) for an unknown / dangling / no-longer-readable alias so that the
- * existence of a name never leaks. Only a resolvable, still-readable alias may
- * 302 to the canonical `/share/<key>/p/<title-slug>-<slugId>` page (302 — never
- * 301 — because the target is retargetable). These tests pin that routing and
- * the defensive percent-decoding, mirroring `share-seo.controller.routing.spec`.
- */
-
-const STREAM_SENTINEL = { __isStream: true } as unknown as fs.ReadStream;
-
-// Stub fs at CALL time (jest.spyOn), NOT module load (jest.mock): the controller
-// transitively pulls bcrypt, whose native module is located by node-gyp-build
-// reading the filesystem at import time — a module-level fs mock breaks that.
-beforeEach(() => {
-  jest.spyOn(fs, 'existsSync').mockReturnValue(true);
-  jest.spyOn(fs, 'createReadStream').mockReturnValue(STREAM_SENTINEL);
-});
-afterEach(() => jest.restoreAllMocks());
-
-function makeRes() {
-  const res: any = {
-    sent: undefined as unknown,
-    statusCode: undefined as number | undefined,
-    redirectUrl: undefined as string | undefined,
-    type: jest.fn(() => res),
-    status: jest.fn((code: number) => {
-      res.statusCode = code;
-      return res;
-    }),
-    send: jest.fn((v: unknown) => {
-      res.sent = v;
-      return res;
-    }),
-    redirect: jest.fn((url: string, code: number) => {
-      res.redirectUrl = url;
-      res.statusCode = code;
-      return res;
-    }),
-  };
-  return res;
-}
-
-function makeController(opts: {
-  resolved?: { share: any; page: any } | null;
-  selfHosted?: boolean;
-}) {
-  const shareAliasService = {
-    resolveReadableTarget: jest.fn(async () => opts.resolved ?? null),
-  };
-  const workspaceRepo = {
-    findFirst: jest.fn(async () => ({ id: 'ws-self' })),
-    findByHostname: jest.fn(async (sub: string) =>
-      sub === 'acme' ? { id: 'ws-acme' } : null,
-    ),
-  };
-  const environmentService = {
-    isSelfHosted: jest.fn(() => opts.selfHosted ?? true),
-  };
-  const controller = new ShareAliasRedirectController(
-    shareAliasService as any,
-    workspaceRepo as any,
-    environmentService as any,
-  );
-  return { controller, shareAliasService, workspaceRepo, environmentService };
-}
-
-const selfReq: any = { raw: { headers: { host: 'self' } } };
-
-describe('ShareAliasRedirectController.resolve', () => {
-  it('302-redirects a resolvable alias to the canonical share page', async () => {
-    const { controller, shareAliasService } = makeController({
-      resolved: {
-        share: { key: 'SHAREKEY' },
-        page: { slugId: 'abc123', title: 'Quarterly Report' },
-      },
-    });
-    const res = makeRes();
-
-    await controller.resolve('promo', selfReq, res);
-
-    expect(shareAliasService.resolveReadableTarget).toHaveBeenCalledWith(
-      'promo',
-      'ws-self',
-    );
-    expect(res.redirect).toHaveBeenCalledWith(
-      '/share/SHAREKEY/p/quarterly-report-abc123',
-      302,
-    );
-    // No index stream was served on a hit.
-    expect(res.sent).toBeUndefined();
-  });
-
-  it('falls back to "untitled" in the slug when the target has no title', async () => {
-    const { controller } = makeController({
-      resolved: { share: { key: 'K' }, page: { slugId: 'sid', title: '' } },
-    });
-    const res = makeRes();
-
-    await controller.resolve('promo', selfReq, res);
-
-    expect(res.redirect).toHaveBeenCalledWith('/share/K/p/untitled-sid', 302);
-  });
-
-  it('clamps the title-slug to the first 70 characters of the page title', async () => {
-    // 119-char title; only the first 70 chars must reach the slug. The 70-char
-    // boundary deliberately falls mid-word ("Entire" -> "entir") so the clamp is
-    // unambiguous: anything past char 70 ("...e Fiscal Year...") must be dropped.
-    const longTitle =
-      'The Comprehensive Quarterly Financial Performance Report For The Entire Fiscal Year Two Thousand Twenty Five And Beyond';
-    const { controller } = makeController({
-      resolved: {
-        share: { key: 'K' },
-        page: { slugId: 'sid', title: longTitle },
-      },
-    });
-    const res = makeRes();
-
-    await controller.resolve('promo', selfReq, res);
-
-    expect(res.redirect).toHaveBeenCalledWith(
-      '/share/K/p/the-comprehensive-quarterly-financial-performance-report-for-the-entir-sid',
-      302,
-    );
-  });
-
-  it('streams the SPA index WITHOUT a 302 for an unknown/dangling/unreadable alias (no leak)', async () => {
-    const { controller, shareAliasService } = makeController({ resolved: null });
-    const res = makeRes();
-
-    await controller.resolve('does-not-exist', selfReq, res);
-
-    expect(shareAliasService.resolveReadableTarget).toHaveBeenCalled();
-    // The plain index stream was served and no redirect leaked alias existence.
-    expect(res.redirect).not.toHaveBeenCalled();
-    expect(res.sent).toBe(STREAM_SENTINEL);
-    expect(res.type).toHaveBeenCalledWith('text/html');
-  });
-
-  it('streams the SPA index without even resolving when the workspace is null', async () => {
-    // Subdomain host that maps to no workspace => workspace === null.
-    const { controller, shareAliasService, workspaceRepo } = makeController({
-      selfHosted: false,
-    });
-    const res = makeRes();
-    const req: any = { raw: { headers: { host: 'unknown.example.com' } } };
-
-    await controller.resolve('promo', req, res);
-
-    expect(workspaceRepo.findByHostname).toHaveBeenCalledWith('unknown');
-    // Never even attempts to resolve (alias existence cannot leak per-host).
-    expect(shareAliasService.resolveReadableTarget).not.toHaveBeenCalled();
-    expect(res.redirect).not.toHaveBeenCalled();
-    expect(res.sent).toBe(STREAM_SENTINEL);
-  });
-
-  it('defensively decodes broken percent-encoding and treats it as unknown', async () => {
-    const { controller, shareAliasService } = makeController({ resolved: null });
-    const res = makeRes();
-
-    // '%E0%A4%A' is invalid -> decodeURIComponent throws -> raw value is used,
-    // and the alias resolves to nothing (no crash, served as index).
-    await controller.resolve('%E0%A4%A', selfReq, res);
-
-    expect(shareAliasService.resolveReadableTarget).toHaveBeenCalledWith(
-      '%E0%A4%A',
-      'ws-self',
-    );
-    expect(res.redirect).not.toHaveBeenCalled();
-    expect(res.sent).toBe(STREAM_SENTINEL);
-  });
-
-  it('decodes a valid percent-encoded alias before resolving', async () => {
-    const { controller, shareAliasService } = makeController({ resolved: null });
-    const res = makeRes();
-
-    await controller.resolve('my%2Dlink', selfReq, res);
-
-    expect(shareAliasService.resolveReadableTarget).toHaveBeenCalledWith(
-      'my-link',
-      'ws-self',
-    );
-  });
-
-  it('resolves the workspace via findFirst on the self-hosted path', async () => {
-    const { controller, workspaceRepo, shareAliasService } = makeController({
-      selfHosted: true,
-      resolved: null,
-    });
-    const res = makeRes();
-
-    await controller.resolve('promo', selfReq, res);
-
-    expect(workspaceRepo.findFirst).toHaveBeenCalled();
-    expect(workspaceRepo.findByHostname).not.toHaveBeenCalled();
-    expect(shareAliasService.resolveReadableTarget).toHaveBeenCalledWith(
-      'promo',
-      'ws-self',
-    );
-  });
-
-  it('resolves the workspace via findByHostname (subdomain) on the cloud path', async () => {
-    const { controller, workspaceRepo, shareAliasService } = makeController({
-      selfHosted: false,
-      resolved: null,
-    });
-    const res = makeRes();
-    const req: any = { raw: { headers: { host: 'acme.example.com' } } };
-
-    await controller.resolve('promo', req, res);
-
-    expect(workspaceRepo.findByHostname).toHaveBeenCalledWith('acme');
-    expect(workspaceRepo.findFirst).not.toHaveBeenCalled();
-    expect(shareAliasService.resolveReadableTarget).toHaveBeenCalledWith(
-      'promo',
-      'ws-acme',
-    );
-  });
-
-  it('serves a 404 when no built client index exists', async () => {
-    jest.spyOn(fs, 'existsSync').mockReturnValue(false);
-    const { controller } = makeController({ resolved: null });
-    const res = makeRes();
-
-    await controller.resolve('promo', selfReq, res);
-
-    expect(res.status).toHaveBeenCalledWith(404);
-    expect(res.redirect).not.toHaveBeenCalled();
-  });
-});
--- a/apps/server/src/core/share/share-alias-redirect.controller.ts
+++ b/apps/server/src/core/share/share-alias-redirect.controller.ts
@@ -1,95 +0,0 @@
-import { Controller, Get, Param, Req, Res } from '@nestjs/common';
-import { FastifyReply, FastifyRequest } from 'fastify';
-import { join } from 'path';
-import * as fs from 'node:fs';
-import slugify from '@sindresorhus/slugify';
-import { WorkspaceRepo } from '@docmost/db/repos/workspace/workspace.repo';
-import { EnvironmentService } from '../../integrations/environment/environment.service';
-import { Workspace } from '@docmost/db/types/entity.types';
-import { ShareAliasService } from './share-alias.service';
-
-/**
- * Public resolver for vanity links `GET /l/:alias`. Excluded from the global
- * `/api` prefix (see main.ts) and parallel to ShareSeoController.
- *
- * On a hit it issues a 302 (NEVER 301) to the canonical
- * `/share/:key/p/:slug` page, so:
- *   - the existing share render + SSR meta is reused verbatim (crawlers follow
- *     the 302 and get the correct preview);
- *   - because the alias target is mutable, a temporary redirect is always
- *     re-resolved — a cached 301 would pin clients to the pre-swap page.
- *
- * Any unknown / dangling / no-longer-readable alias serves the plain SPA index
- * (same as any unknown path) so the existence of a name never leaks.
- */
-@Controller('l')
-export class ShareAliasRedirectController {
-  constructor(
-    private readonly shareAliasService: ShareAliasService,
-    private readonly workspaceRepo: WorkspaceRepo,
-    private readonly environmentService: EnvironmentService,
-  ) {}
-
-  @Get(':alias')
-  async resolve(
-    @Param('alias') rawAlias: string,
-    @Req() req: FastifyRequest,
-    @Res({ passthrough: false }) res: FastifyReply,
-  ) {
-    // NestJS does not apply middlewares to paths excluded from the global /api
-    // prefix, so the DomainMiddleware workspace resolution is duplicated here
-    // (same workaround as ShareSeoController).
-    let workspace: Workspace = null;
-    if (this.environmentService.isSelfHosted()) {
-      workspace = await this.workspaceRepo.findFirst();
-    } else {
-      const header = req.raw.headers.host;
-      const subdomain = header?.split('.')[0];
-      workspace = subdomain
-        ? await this.workspaceRepo.findByHostname(subdomain)
-        : null;
-    }
-
-    const clientDistPath = join(__dirname, '..', '..', '..', '..', 'client/dist');
-    const indexFilePath = join(clientDistPath, 'index.html');
-
-    let decoded = rawAlias;
-    try {
-      decoded = decodeURIComponent(rawAlias);
-    } catch {
-      // Malformed percent-encoding -> treat as unknown alias.
-    }
-
-    const resolved = workspace
-      ? await this.shareAliasService.resolveReadableTarget(
-          decoded,
-          workspace.id,
-        )
-      : null;
-
-    if (!resolved) {
-      return this.sendIndex(indexFilePath, res);
-    }
-
-    const slug = buildPageSlug(resolved.page.slugId, resolved.page.title);
-    // 302, NOT 301: the alias is retargetable, so the redirect must always be
-    // re-resolved by clients/crawlers.
-    return res.redirect(`/share/${resolved.share.key}/p/${slug}`, 302);
-  }
-
-  private sendIndex(indexFilePath: string, res: FastifyReply) {
-    if (!fs.existsSync(indexFilePath)) {
-      // No built client (e.g. API-only dev): nothing to serve.
-      res.status(404).send('Not found');
-      return;
-    }
-    const stream = fs.createReadStream(indexFilePath);
-    res.type('text/html').send(stream);
-  }
-}
-
-/** Canonical share page slug: `<title-slug>-<slugId>` (mirrors the client). */
-function buildPageSlug(slugId: string, title?: string): string {
-  const titleSlug = slugify(title?.substring(0, 70) || 'untitled');
-  return `${titleSlug}-${slugId}`;
-}
--- a/apps/server/src/core/share/share-alias.controller.spec.ts
+++ b/apps/server/src/core/share/share-alias.controller.spec.ts
@@ -1,260 +0,0 @@
-import {
-  BadRequestException,
-  ForbiddenException,
-  NotFoundException,
-} from '@nestjs/common';
-import { ShareAliasController } from './share-alias.controller';
-
-/**
- * Authz-gate tests for the authenticated alias management controller. The access
- * decisions for creating/retargeting/removing an alias live in THIS controller
- * (the service spec delegates authorization to the caller), so each gate is
- * pinned here against mocked PageRepo / ShareService / ShareAliasService /
- * PageAccessService. A regression that drops any gate must fail here.
- */
-describe('ShareAliasController authz gates', () => {
-  function makeController() {
-    const shareAliasService = {
-      setAlias: jest.fn(async () => ({ id: 'alias-1' })),
-      removeAlias: jest.fn(async () => undefined),
-      getAliasById: jest.fn(),
-      getAliasForPage: jest.fn(),
-      checkAvailability: jest.fn(),
-    };
-    const shareService = {
-      resolveReadableSharePage: jest.fn(),
-      isSharingAllowed: jest.fn(),
-    };
-    const pageRepo = { findById: jest.fn() };
-    const pageAccessService = {
-      validateCanEdit: jest.fn(async () => undefined),
-      validateCanView: jest.fn(async () => undefined),
-    };
-    const controller = new ShareAliasController(
-      shareAliasService as any,
-      shareService as any,
-      pageRepo as any,
-      pageAccessService as any,
-    );
-    return {
-      controller,
-      shareAliasService,
-      shareService,
-      pageRepo,
-      pageAccessService,
-    };
-  }
-
-  const user: any = { id: 'u-1' };
-  const workspace: any = { id: 'ws-1' };
-
-  describe('set', () => {
-    it('throws NotFoundException for a nonexistent page', async () => {
-      const { controller, pageRepo, pageAccessService } = makeController();
-      pageRepo.findById.mockResolvedValue(null);
-
-      await expect(
-        controller.set({ pageId: 'p-x', alias: 'promo' } as any, user, workspace),
-      ).rejects.toBeInstanceOf(NotFoundException);
-      expect(pageAccessService.validateCanEdit).not.toHaveBeenCalled();
-    });
-
-    it('throws NotFoundException for a page in another workspace', async () => {
-      const { controller, pageRepo } = makeController();
-      pageRepo.findById.mockResolvedValue({
-        id: 'p-1',
-        workspaceId: 'ws-OTHER',
-      });
-
-      await expect(
-        controller.set({ pageId: 'p-1', alias: 'promo' } as any, user, workspace),
-      ).rejects.toBeInstanceOf(NotFoundException);
-    });
-
-    it('enforces validateCanEdit before setting the alias', async () => {
-      const { controller, pageRepo, pageAccessService, shareService } =
-        makeController();
-      pageRepo.findById.mockResolvedValue({ id: 'p-1', workspaceId: 'ws-1' });
-      pageAccessService.validateCanEdit.mockRejectedValue(
-        new ForbiddenException('no edit'),
-      );
-
-      await expect(
-        controller.set({ pageId: 'p-1', alias: 'promo' } as any, user, workspace),
-      ).rejects.toBeInstanceOf(ForbiddenException);
-      // Gate short-circuits before any share resolution.
-      expect(shareService.resolveReadableSharePage).not.toHaveBeenCalled();
-    });
-
-    it('throws BadRequestException when the page is not publicly shared', async () => {
-      const { controller, pageRepo, shareService } = makeController();
-      pageRepo.findById.mockResolvedValue({ id: 'p-1', workspaceId: 'ws-1' });
-      shareService.resolveReadableSharePage.mockResolvedValue(null);
-
-      await expect(
-        controller.set({ pageId: 'p-1', alias: 'promo' } as any, user, workspace),
-      ).rejects.toThrow('Page is not publicly shared');
-      await expect(
-        controller.set({ pageId: 'p-1', alias: 'promo' } as any, user, workspace),
-      ).rejects.toBeInstanceOf(BadRequestException);
-    });
-
-    it('throws ForbiddenException when public sharing is disabled', async () => {
-      const { controller, pageRepo, shareService } = makeController();
-      pageRepo.findById.mockResolvedValue({ id: 'p-1', workspaceId: 'ws-1' });
-      shareService.resolveReadableSharePage.mockResolvedValue({
-        share: { spaceId: 'sp-1' },
-      });
-      shareService.isSharingAllowed.mockResolvedValue(false);
-
-      await expect(
-        controller.set({ pageId: 'p-1', alias: 'promo' } as any, user, workspace),
-      ).rejects.toBeInstanceOf(ForbiddenException);
-    });
-
-    it('delegates to setAlias on the happy path with all gates passed', async () => {
-      const { controller, pageRepo, shareService, shareAliasService } =
-        makeController();
-      pageRepo.findById.mockResolvedValue({ id: 'p-1', workspaceId: 'ws-1' });
-      shareService.resolveReadableSharePage.mockResolvedValue({
-        share: { spaceId: 'sp-1' },
-      });
-      shareService.isSharingAllowed.mockResolvedValue(true);
-
-      const result = await controller.set(
-        { pageId: 'p-1', alias: 'promo', confirmReassign: true } as any,
-        user,
-        workspace,
-      );
-
-      expect(shareAliasService.setAlias).toHaveBeenCalledWith({
-        workspaceId: 'ws-1',
-        pageId: 'p-1',
-        creatorId: 'u-1',
-        alias: 'promo',
-        confirmReassign: true,
-      });
-      expect(result).toEqual({ id: 'alias-1' });
-    });
-  });
-
-  describe('remove', () => {
-    it('throws NotFoundException for an unknown alias', async () => {
-      const { controller, shareAliasService } = makeController();
-      shareAliasService.getAliasById.mockResolvedValue(null);
-
-      await expect(
-        controller.remove({ aliasId: 'a-x' } as any, user, workspace),
-      ).rejects.toBeInstanceOf(NotFoundException);
-      expect(shareAliasService.removeAlias).not.toHaveBeenCalled();
-    });
-
-    it('requires validateCanEdit on the current target before removing', async () => {
-      const { controller, shareAliasService, pageRepo, pageAccessService } =
-        makeController();
-      shareAliasService.getAliasById.mockResolvedValue({
-        id: 'a-1',
-        pageId: 'p-1',
-      });
-      pageRepo.findById.mockResolvedValue({ id: 'p-1', workspaceId: 'ws-1' });
-      pageAccessService.validateCanEdit.mockRejectedValue(
-        new ForbiddenException('no edit'),
-      );
-
-      await expect(
-        controller.remove({ aliasId: 'a-1' } as any, user, workspace),
-      ).rejects.toBeInstanceOf(ForbiddenException);
-      expect(shareAliasService.removeAlias).not.toHaveBeenCalled();
-    });
-
-    it('removes a dangling alias (pageId null) WITHOUT an edit check', async () => {
-      const { controller, shareAliasService, pageRepo, pageAccessService } =
-        makeController();
-      shareAliasService.getAliasById.mockResolvedValue({
-        id: 'a-1',
-        pageId: null,
-      });
-
-      await controller.remove({ aliasId: 'a-1' } as any, user, workspace);
-
-      expect(pageRepo.findById).not.toHaveBeenCalled();
-      expect(pageAccessService.validateCanEdit).not.toHaveBeenCalled();
-      expect(shareAliasService.removeAlias).toHaveBeenCalledWith('a-1', 'ws-1');
-    });
-
-    it('removes when the editor can edit the current target', async () => {
-      const { controller, shareAliasService, pageRepo, pageAccessService } =
-        makeController();
-      shareAliasService.getAliasById.mockResolvedValue({
-        id: 'a-1',
-        pageId: 'p-1',
-      });
-      pageRepo.findById.mockResolvedValue({ id: 'p-1', workspaceId: 'ws-1' });
-
-      await controller.remove({ aliasId: 'a-1' } as any, user, workspace);
-
-      expect(pageAccessService.validateCanEdit).toHaveBeenCalled();
-      expect(shareAliasService.removeAlias).toHaveBeenCalledWith('a-1', 'ws-1');
-    });
-
-    it('removes even if the recorded target page no longer exists', async () => {
-      const { controller, shareAliasService, pageRepo, pageAccessService } =
-        makeController();
-      shareAliasService.getAliasById.mockResolvedValue({
-        id: 'a-1',
-        pageId: 'p-gone',
-      });
-      pageRepo.findById.mockResolvedValue(null);
-
-      await controller.remove({ aliasId: 'a-1' } as any, user, workspace);
-
-      expect(pageAccessService.validateCanEdit).not.toHaveBeenCalled();
-      expect(shareAliasService.removeAlias).toHaveBeenCalledWith('a-1', 'ws-1');
-    });
-  });
-
-  describe('forPage', () => {
-    it('throws NotFoundException for a cross-workspace/nonexistent page', async () => {
-      const { controller, pageRepo, pageAccessService } = makeController();
-      pageRepo.findById.mockResolvedValue({
-        id: 'p-1',
-        workspaceId: 'ws-OTHER',
-      });
-
-      await expect(
-        controller.forPage({ pageId: 'p-1' } as any, user, workspace),
-      ).rejects.toBeInstanceOf(NotFoundException);
-      expect(pageAccessService.validateCanView).not.toHaveBeenCalled();
-    });
-
-    it('requires validateCanView and returns the alias (or null)', async () => {
-      const { controller, pageRepo, pageAccessService, shareAliasService } =
-        makeController();
-      pageRepo.findById.mockResolvedValue({ id: 'p-1', workspaceId: 'ws-1' });
-      shareAliasService.getAliasForPage.mockResolvedValue({ id: 'a-1' });
-
-      const result = await controller.forPage(
-        { pageId: 'p-1' } as any,
-        user,
-        workspace,
-      );
-
-      expect(pageAccessService.validateCanView).toHaveBeenCalled();
-      expect(result).toEqual({ id: 'a-1' });
-    });
-
-    it('returns null when the page has no alias', async () => {
-      const { controller, pageRepo, shareAliasService } = makeController();
-      pageRepo.findById.mockResolvedValue({ id: 'p-1', workspaceId: 'ws-1' });
-      shareAliasService.getAliasForPage.mockResolvedValue(undefined);
-
-      const result = await controller.forPage(
-        { pageId: 'p-1' } as any,
-        user,
-        workspace,
-      );
-
-      expect(result).toBeNull();
-    });
-  });
-});
--- a/apps/server/src/core/share/share-alias.controller.ts
+++ b/apps/server/src/core/share/share-alias.controller.ts
@@ -1,139 +0,0 @@
-import {
-  BadRequestException,
-  Body,
-  Controller,
-  ForbiddenException,
-  HttpCode,
-  HttpStatus,
-  NotFoundException,
-  Post,
-  UseGuards,
-} from '@nestjs/common';
-import { JwtAuthGuard } from '../../common/guards/jwt-auth.guard';
-import { AuthUser } from '../../common/decorators/auth-user.decorator';
-import { AuthWorkspace } from '../../common/decorators/auth-workspace.decorator';
-import { User, Workspace } from '@docmost/db/types/entity.types';
-import { PageRepo } from '@docmost/db/repos/page/page.repo';
-import { PageAccessService } from '../page/page-access/page-access.service';
-import { ShareService } from './share.service';
-import { ShareAliasService } from './share-alias.service';
-import {
-  RemoveShareAliasDto,
-  SetShareAliasDto,
-  ShareAliasAvailabilityDto,
-  ShareAliasForPageDto,
-} from './dto/share-alias.dto';
-
-/**
- * Authenticated management of vanity `/l/:alias` links. The PUBLIC resolve path
- * lives in `ShareAliasRedirectController` (`/l/:alias`); this controller only
- * creates/retargets/removes/looks-up aliases for editors.
- */
-@UseGuards(JwtAuthGuard)
-@Controller('share-aliases')
-export class ShareAliasController {
-  constructor(
-    private readonly shareAliasService: ShareAliasService,
-    private readonly shareService: ShareService,
-    private readonly pageRepo: PageRepo,
-    private readonly pageAccessService: PageAccessService,
-  ) {}
-
-  @HttpCode(HttpStatus.OK)
-  @Post('set')
-  async set(
-    @Body() dto: SetShareAliasDto,
-    @AuthUser() user: User,
-    @AuthWorkspace() workspace: Workspace,
-  ) {
-    const page = await this.pageRepo.findById(dto.pageId);
-    if (!page || page.workspaceId !== workspace.id) {
-      throw new NotFoundException('Page not found');
-    }
-
-    // Editing the page is required to point an address at it.
-    await this.pageAccessService.validateCanEdit(page, user);
-
-    // The page must currently be publicly readable through the share graph; an
-    // alias to a non-shared page would only ever 404.
-    const resolved = await this.shareService.resolveReadableSharePage(
-      undefined,
-      page.id,
-      workspace.id,
-    );
-    if (!resolved) {
-      throw new BadRequestException('Page is not publicly shared');
-    }
-
-    const sharingAllowed = await this.shareService.isSharingAllowed(
-      workspace.id,
-      resolved.share.spaceId,
-    );
-    if (!sharingAllowed) {
-      throw new ForbiddenException('Public sharing is disabled');
-    }
-
-    return this.shareAliasService.setAlias({
-      workspaceId: workspace.id,
-      pageId: page.id,
-      creatorId: user.id,
-      alias: dto.alias,
-      confirmReassign: dto.confirmReassign,
-    });
-  }
-
-  @HttpCode(HttpStatus.OK)
-  @Post('remove')
-  async remove(
-    @Body() dto: RemoveShareAliasDto,
-    @AuthUser() user: User,
-    @AuthWorkspace() workspace: Workspace,
-  ) {
-    const alias = await this.shareAliasService.getAliasById(
-      dto.aliasId,
-      workspace.id,
-    );
-    if (!alias) {
-      throw new NotFoundException('Alias not found');
-    }
-
-    // Only someone who can edit the (current) target page may free the address.
-    // A dangling alias (page deleted) can be removed by any workspace member.
-    if (alias.pageId) {
-      const page = await this.pageRepo.findById(alias.pageId);
-      if (page) {
-        await this.pageAccessService.validateCanEdit(page, user);
-      }
-    }
-
-    await this.shareAliasService.removeAlias(alias.id, workspace.id);
-  }
-
-  @HttpCode(HttpStatus.OK)
-  @Post('availability')
-  async availability(
-    @Body() dto: ShareAliasAvailabilityDto,
-    @AuthWorkspace() workspace: Workspace,
-  ) {
-    return this.shareAliasService.checkAvailability(dto.alias, workspace.id);
-  }
-
-  @HttpCode(HttpStatus.OK)
-  @Post('for-page')
-  async forPage(
-    @Body() dto: ShareAliasForPageDto,
-    @AuthUser() user: User,
-    @AuthWorkspace() workspace: Workspace,
-  ) {
-    const page = await this.pageRepo.findById(dto.pageId);
-    if (!page || page.workspaceId !== workspace.id) {
-      throw new NotFoundException('Page not found');
-    }
-    await this.pageAccessService.validateCanView(page, user);
-
-    return (
-      (await this.shareAliasService.getAliasForPage(page.id, workspace.id)) ??
-      null
-    );
-  }
-}
--- a/apps/server/src/core/share/share-alias.service.spec.ts
+++ b/apps/server/src/core/share/share-alias.service.spec.ts
@@ -1,252 +0,0 @@
-import { BadRequestException, ConflictException } from '@nestjs/common';
-import { ShareAliasService } from './share-alias.service';
-
-/**
- * Behaviour tests for the alias write/resolve semantics: create vs no-op vs the
- * 409 reassign guard, uniqueness-race handling, availability probe, and the
- * request-time readable-target resolution (which re-runs the share boundary).
- */
-describe('ShareAliasService', () => {
-  function makeService() {
-    const shareAliasRepo = {
-      findByAliasAndWorkspace: jest.fn(),
-      findByPageId: jest.fn(),
-      findById: jest.fn(),
-      insert: jest.fn(),
-      updatePageId: jest.fn(),
-      delete: jest.fn(),
-    };
-    const pageRepo = { findById: jest.fn() };
-    const shareService = {
-      resolveReadableSharePage: jest.fn(),
-      isSharingAllowed: jest.fn(),
-    };
-    const service = new ShareAliasService(
-      shareAliasRepo as any,
-      pageRepo as any,
-      shareService as any,
-    );
-    return { service, shareAliasRepo, pageRepo, shareService };
-  }
-
-  describe('setAlias', () => {
-    it('rejects an invalid alias before touching the db', async () => {
-      const { service, shareAliasRepo } = makeService();
-      await expect(
-        service.setAlias({
-          workspaceId: 'ws-1',
-          pageId: 'p-1',
-          creatorId: 'u-1',
-          alias: 'A', // too short + uppercase
-        }),
-      ).rejects.toBeInstanceOf(BadRequestException);
-      expect(shareAliasRepo.findByAliasAndWorkspace).not.toHaveBeenCalled();
-    });
-
-    it('normalizes then inserts a brand-new alias', async () => {
-      const { service, shareAliasRepo } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue(undefined);
-      shareAliasRepo.insert.mockResolvedValue({ id: 'a-1', alias: 'my-page' });
-
-      const res = await service.setAlias({
-        workspaceId: 'ws-1',
-        pageId: 'p-1',
-        creatorId: 'u-1',
-        alias: '  My Page ',
-      });
-
-      expect(shareAliasRepo.findByAliasAndWorkspace).toHaveBeenCalledWith(
-        'my-page',
-        'ws-1',
-      );
-      expect(shareAliasRepo.insert).toHaveBeenCalledWith({
-        workspaceId: 'ws-1',
-        alias: 'my-page',
-        pageId: 'p-1',
-        creatorId: 'u-1',
-      });
-      expect(res).toMatchObject({ id: 'a-1' });
-    });
-
-    it('is a no-op when the alias already points at the same page', async () => {
-      const { service, shareAliasRepo } = makeService();
-      const existing = { id: 'a-1', alias: 'foo', pageId: 'p-1' };
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue(existing);
-
-      const res = await service.setAlias({
-        workspaceId: 'ws-1',
-        pageId: 'p-1',
-        creatorId: 'u-1',
-        alias: 'foo',
-      });
-
-      expect(res).toBe(existing);
-      expect(shareAliasRepo.insert).not.toHaveBeenCalled();
-      expect(shareAliasRepo.updatePageId).not.toHaveBeenCalled();
-    });
-
-    it('throws 409 with current target when name is taken and not confirmed', async () => {
-      const { service, shareAliasRepo, pageRepo } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue({
-        id: 'a-1',
-        alias: 'foo',
-        pageId: 'p-other',
-      });
-      pageRepo.findById.mockResolvedValue({ id: 'p-other', title: 'Other' });
-
-      try {
-        await service.setAlias({
-          workspaceId: 'ws-1',
-          pageId: 'p-1',
-          creatorId: 'u-1',
-          alias: 'foo',
-        });
-        fail('expected ConflictException');
-      } catch (err) {
-        expect(err).toBeInstanceOf(ConflictException);
-        expect((err as ConflictException).getResponse()).toMatchObject({
-          code: 'ALIAS_REASSIGN_REQUIRED',
-          currentPageId: 'p-other',
-          currentPageTitle: 'Other',
-        });
-      }
-      expect(shareAliasRepo.updatePageId).not.toHaveBeenCalled();
-    });
-
-    it('retargets (UPDATE page_id) when confirmReassign is set', async () => {
-      const { service, shareAliasRepo } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue({
-        id: 'a-1',
-        alias: 'foo',
-        pageId: 'p-other',
-      });
-      shareAliasRepo.updatePageId.mockResolvedValue({ id: 'a-1', pageId: 'p-1' });
-
-      const res = await service.setAlias({
-        workspaceId: 'ws-1',
-        pageId: 'p-1',
-        creatorId: 'u-1',
-        alias: 'foo',
-        confirmReassign: true,
-      });
-
-      expect(shareAliasRepo.updatePageId).toHaveBeenCalledWith(
-        'a-1',
-        'p-1',
-        'ws-1',
-      );
-      expect(res).toMatchObject({ pageId: 'p-1' });
-    });
-
-    it('maps a unique-violation race to 409', async () => {
-      const { service, shareAliasRepo } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue(undefined);
-      shareAliasRepo.insert.mockRejectedValue({ code: '23505' });
-
-      await expect(
-        service.setAlias({
-          workspaceId: 'ws-1',
-          pageId: 'p-1',
-          creatorId: 'u-1',
-          alias: 'foo',
-        }),
-      ).rejects.toBeInstanceOf(ConflictException);
-    });
-  });
-
-  describe('checkAvailability', () => {
-    it('reports invalid for a bad slug without a db hit', async () => {
-      const { service, shareAliasRepo } = makeService();
-      const res = await service.checkAvailability('Bad Slug!', 'ws-1');
-      expect(res).toMatchObject({ valid: false, available: false });
-      expect(shareAliasRepo.findByAliasAndWorkspace).not.toHaveBeenCalled();
-    });
-
-    it('reports available when no row exists', async () => {
-      const { service, shareAliasRepo } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue(undefined);
-      const res = await service.checkAvailability('free-name', 'ws-1');
-      expect(res).toMatchObject({
-        alias: 'free-name',
-        valid: true,
-        available: true,
-        currentPageId: null,
-      });
-    });
-
-    it('reports taken with the current target page', async () => {
-      const { service, shareAliasRepo } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue({
-        id: 'a-1',
-        pageId: 'p-9',
-      });
-      const res = await service.checkAvailability('taken', 'ws-1');
-      expect(res).toMatchObject({ available: false, currentPageId: 'p-9' });
-    });
-  });
-
-  describe('resolveReadableTarget', () => {
-    it('returns null for an invalid alias', async () => {
-      const { service } = makeService();
-      expect(await service.resolveReadableTarget('!!', 'ws-1')).toBeNull();
-    });
-
-    it('returns null for an unknown or dangling alias', async () => {
-      const { service, shareAliasRepo } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValueOnce(undefined);
-      expect(await service.resolveReadableTarget('foo', 'ws-1')).toBeNull();
-
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValueOnce({
-        id: 'a-1',
-        pageId: null,
-      });
-      expect(await service.resolveReadableTarget('foo', 'ws-1')).toBeNull();
-    });
-
-    it('returns null when the page is no longer publicly readable', async () => {
-      const { service, shareAliasRepo, shareService } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue({
-        id: 'a-1',
-        pageId: 'p-1',
-      });
-      shareService.resolveReadableSharePage.mockResolvedValue(null);
-      expect(await service.resolveReadableTarget('foo', 'ws-1')).toBeNull();
-    });
-
-    it('returns null when sharing is disabled for the space', async () => {
-      const { service, shareAliasRepo, shareService } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue({
-        id: 'a-1',
-        pageId: 'p-1',
-      });
-      shareService.resolveReadableSharePage.mockResolvedValue({
-        share: { key: 'k', spaceId: 's-1' },
-        page: { slugId: 'sid', title: 'T' },
-      });
-      shareService.isSharingAllowed.mockResolvedValue(false);
-      expect(await service.resolveReadableTarget('foo', 'ws-1')).toBeNull();
-    });
-
-    it('returns the resolved share+page on success', async () => {
-      const { service, shareAliasRepo, shareService } = makeService();
-      shareAliasRepo.findByAliasAndWorkspace.mockResolvedValue({
-        id: 'a-1',
-        pageId: 'p-1',
-      });
-      const resolved = {
-        share: { key: 'k', spaceId: 's-1' },
-        page: { slugId: 'sid', title: 'T' },
-      };
-      shareService.resolveReadableSharePage.mockResolvedValue(resolved);
-      shareService.isSharingAllowed.mockResolvedValue(true);
-
-      const res = await service.resolveReadableTarget('FOO', 'ws-1');
-      expect(res).toBe(resolved);
-      // alias was normalized to lowercase before lookup
-      expect(shareAliasRepo.findByAliasAndWorkspace).toHaveBeenCalledWith(
-        'foo',
-        'ws-1',
-      );
-    });
-  });
-});
--- a/apps/server/src/core/share/share-alias.service.ts
+++ b/apps/server/src/core/share/share-alias.service.ts
@@ -1,187 +0,0 @@
-import {
-  BadRequestException,
-  ConflictException,
-  Injectable,
-  Logger,
-} from '@nestjs/common';
-import { ShareAliasRepo } from '@docmost/db/repos/share-alias/share-alias.repo';
-import { PageRepo } from '@docmost/db/repos/page/page.repo';
-import { ShareService } from './share.service';
-import { Page, ShareAlias } from '@docmost/db/types/entity.types';
-import { isValidShareAlias, normalizeShareAlias } from './share-alias.util';
-
-/** Postgres unique_violation; the (workspace_id, alias) constraint races here. */
-const PG_UNIQUE_VIOLATION = '23505';
-
-export interface ResolvedAliasTarget {
-  share: NonNullable<
-    Awaited<ReturnType<ShareService['resolveReadableSharePage']>>
-  >['share'];
-  page: Page;
-}
-
-@Injectable()
-export class ShareAliasService {
-  private readonly logger = new Logger(ShareAliasService.name);
-
-  constructor(
-    private readonly shareAliasRepo: ShareAliasRepo,
-    private readonly pageRepo: PageRepo,
-    private readonly shareService: ShareService,
-  ) {}
-
-  /**
-   * Create or retarget a vanity alias. The alias is workspace-scoped:
-   *   - no row for this name        -> INSERT a new pointer
-   *   - row already points at pageId -> no-op (idempotent)
-   *   - row points elsewhere         -> the "swap". Without confirmReassign we
-   *     throw 409 carrying the current target so the client can confirm; with
-   *     it we UPDATE the single row's page_id (every /l/<alias> link follows the
-   *     302 to the new page instantly — no stale 301 cache).
-   *
-   * Caller is responsible for authorizing the page (edit rights + public
-   * readability); this method owns only the alias-name semantics.
-   */
-  async setAlias(opts: {
-    workspaceId: string;
-    pageId: string;
-    creatorId: string;
-    alias: string;
-    confirmReassign?: boolean;
-  }): Promise<ShareAlias> {
-    const { workspaceId, pageId, creatorId, confirmReassign } = opts;
-    const alias = normalizeShareAlias(opts.alias);
-    if (!isValidShareAlias(alias)) {
-      throw new BadRequestException(
-        'Invalid alias. Use 2-60 lowercase letters, digits and hyphens.',
-      );
-    }
-
-    const existing = await this.shareAliasRepo.findByAliasAndWorkspace(
-      alias,
-      workspaceId,
-    );
-
-    if (!existing) {
-      try {
-        return await this.shareAliasRepo.insert({
-          workspaceId,
-          alias,
-          pageId,
-          creatorId,
-        });
-      } catch (err: any) {
-        // Lost a uniqueness race: another request claimed the name first.
-        if (err?.code === PG_UNIQUE_VIOLATION) {
-          throw new ConflictException({ message: 'Alias already taken' });
-        }
-        this.logger.error(err);
-        throw new BadRequestException('Failed to set alias');
-      }
-    }
-
-    // Already points at this page -> nothing to do.
-    if (existing.pageId === pageId) {
-      return existing;
-    }
-
-    // Name occupied by a different (or dangling) target: require confirmation.
-    if (!confirmReassign) {
-      const currentPage = existing.pageId
-        ? await this.pageRepo.findById(existing.pageId)
-        : null;
-      throw new ConflictException({
-        message: 'Alias already in use',
-        code: 'ALIAS_REASSIGN_REQUIRED',
-        currentPageId: existing.pageId,
-        currentPageTitle: currentPage?.title ?? null,
-      });
-    }
-
-    return this.shareAliasRepo.updatePageId(existing.id, pageId, workspaceId);
-  }
-
-  /** Free a vanity name (no history kept). */
-  async removeAlias(aliasId: string, workspaceId: string): Promise<void> {
-    await this.shareAliasRepo.delete(aliasId, workspaceId);
-  }
-
-  /** Debounced availability probe for the modal. */
-  async checkAvailability(
-    rawAlias: string,
-    workspaceId: string,
-  ): Promise<{
-    alias: string;
-    valid: boolean;
-    available: boolean;
-    currentPageId: string | null;
-  }> {
-    const alias = normalizeShareAlias(rawAlias);
-    if (!isValidShareAlias(alias)) {
-      return { alias, valid: false, available: false, currentPageId: null };
-    }
-    const existing = await this.shareAliasRepo.findByAliasAndWorkspace(
-      alias,
-      workspaceId,
-    );
-    return {
-      alias,
-      valid: true,
-      available: !existing,
-      currentPageId: existing?.pageId ?? null,
-    };
-  }
-
-  /** A single alias row scoped to the workspace, or undefined. */
-  getAliasById(
-    aliasId: string,
-    workspaceId: string,
-  ): Promise<ShareAlias | undefined> {
-    return this.shareAliasRepo.findById(aliasId, workspaceId);
-  }
-
-  /** The alias currently targeting a page (modal display), or undefined. */
-  getAliasForPage(
-    pageId: string,
-    workspaceId: string,
-  ): Promise<ShareAlias | undefined> {
-    return this.shareAliasRepo.findByPageId(pageId, workspaceId);
-  }
-
-  /**
-   * Resolve a vanity alias to the canonical, publicly-READABLE share page, or
-   * null. This re-runs the authoritative share boundary at request time (so a
-   * later-unshared / restricted / sharing-disabled target collapses to null and
-   * the caller serves the generic SPA 404 — no existence leak). The alias row
-   * itself is just a pointer; this is where access is actually decided.
-   */
-  async resolveReadableTarget(
-    rawAlias: string,
-    workspaceId: string,
-  ): Promise<ResolvedAliasTarget | null> {
-    const alias = normalizeShareAlias(rawAlias);
-    if (!isValidShareAlias(alias)) return null;
-
-    const aliasRow = await this.shareAliasRepo.findByAliasAndWorkspace(
-      alias,
-      workspaceId,
-    );
-    // Unknown name or a dangling alias (target page deleted) -> not resolvable.
-    if (!aliasRow?.pageId) return null;
-
-    const resolved = await this.shareService.resolveReadableSharePage(
-      undefined,
-      aliasRow.pageId,
-      workspaceId,
-    );
-    if (!resolved) return null;
-
-    const sharingAllowed = await this.shareService.isSharingAllowed(
-      workspaceId,
-      resolved.share.spaceId,
-    );
-    if (!sharingAllowed) return null;
-
-    return resolved;
-  }
-}
--- a/apps/server/src/core/share/share-alias.util.spec.ts
+++ b/apps/server/src/core/share/share-alias.util.spec.ts
@@ -1,60 +0,0 @@
-import { isValidShareAlias, normalizeShareAlias } from './share-alias.util';
-
-describe('normalizeShareAlias', () => {
-  it('lowercases and trims', () => {
-    expect(normalizeShareAlias('  HelloWorld  ')).toBe('helloworld');
-  });
-
-  it('converts spaces and underscores to single hyphens', () => {
-    expect(normalizeShareAlias('my cool   page')).toBe('my-cool-page');
-    expect(normalizeShareAlias('my_cool_page')).toBe('my-cool-page');
-  });
-
-  it('collapses repeated hyphens and trims edge hyphens', () => {
-    expect(normalizeShareAlias('--a---b--')).toBe('a-b');
-  });
-
-  it('handles null/undefined defensively', () => {
-    expect(normalizeShareAlias(undefined as unknown as string)).toBe('');
-  });
-});
-
-describe('isValidShareAlias', () => {
-  it('accepts ascii lowercase hyphen-separated slugs', () => {
-    expect(isValidShareAlias('hello')).toBe(true);
-    expect(isValidShareAlias('hello-world-2')).toBe(true);
-    expect(isValidShareAlias('a1')).toBe(true);
-  });
-
-  it('rejects too short / too long', () => {
-    expect(isValidShareAlias('a')).toBe(false);
-    expect(isValidShareAlias('a'.repeat(61))).toBe(false);
-    expect(isValidShareAlias('a'.repeat(60))).toBe(true);
-  });
-
-  it('rejects leading/trailing/double hyphens', () => {
-    expect(isValidShareAlias('-abc')).toBe(false);
-    expect(isValidShareAlias('abc-')).toBe(false);
-    expect(isValidShareAlias('a--b')).toBe(false);
-  });
-
-  it('rejects uppercase, cyrillic and other non-ascii', () => {
-    expect(isValidShareAlias('Hello')).toBe(false);
-    expect(isValidShareAlias('привет')).toBe(false);
-    expect(isValidShareAlias('a b')).toBe(false);
-    expect(isValidShareAlias('a_b')).toBe(false);
-    expect(isValidShareAlias('a.b')).toBe(false);
-  });
-
-  it('normalize + validate round-trips a messy input to a valid slug', () => {
-    const alias = normalizeShareAlias('  My  Cool_Page!! ');
-    // "!!" is not stripped by normalize (only case/separators), so the result
-    // still fails validation — the charset gate is intentionally separate.
-    expect(alias).toBe('my-cool-page!!');
-    expect(isValidShareAlias(alias)).toBe(false);
-
-    const ok = normalizeShareAlias('  My  Cool Page ');
-    expect(ok).toBe('my-cool-page');
-    expect(isValidShareAlias(ok)).toBe(true);
-  });
-});
--- a/apps/server/src/core/share/share-alias.util.ts
+++ b/apps/server/src/core/share/share-alias.util.ts
@@ -1,30 +0,0 @@
-/**
- * Vanity share-alias helpers shared by the write path (set/availability) and the
- * `/l/:alias` resolve path. Aliases are ASCII-only, lowercase, hyphen-separated
- * slugs — deliberately no Cyrillic / transliteration: the user types the exact
- * canonical form. Keep this in sync with the client copy in
- * `apps/client/src/features/share/share-alias.util.ts`.
- */
-
-// Normalize a user-provided vanity alias into canonical ASCII storage form.
-// This only canonicalizes shape (case, separators); it does NOT enforce the
-// charset — call isValidShareAlias afterwards to reject anything illegal.
-export function normalizeShareAlias(raw: string): string {
-  return (raw ?? '')
-    .trim()
-    .toLowerCase()
-    .replace(/[\s_]+/g, '-') // spaces/underscores -> single hyphen
-    .replace(/-{2,}/g, '-') // collapse repeated hyphens
-    .replace(/^-+|-+$/g, ''); // trim leading/trailing hyphens
-}
-
-// ASCII only: lowercase letters/digits in hyphen-separated groups, length 2..60.
-const ALIAS_RE = /^[a-z0-9]+(?:-[a-z0-9]+)*$/;
-export function isValidShareAlias(alias: string): boolean {
-  return (
-    typeof alias === 'string' &&
-    alias.length >= 2 &&
-    alias.length <= 60 &&
-    ALIAS_RE.test(alias)
-  );
-}
--- a/apps/server/src/core/share/share.module.ts
+++ b/apps/server/src/core/share/share.module.ts
@@ -5,22 +5,13 @@ import { TokenModule } from '../auth/token.module';
 import { ShareSeoController } from './share-seo.controller';
 import { TransclusionModule } from '../page/transclusion/transclusion.module';
 import { AiModule } from '../../integrations/ai/ai.module';
-import { ShareAliasService } from './share-alias.service';
-import { ShareAliasController } from './share-alias.controller';
-import { ShareAliasRedirectController } from './share-alias-redirect.controller';

@Module({
  // AiModule (AiSettingsService) is used by the page-info route to surface
  // whether the anonymous public-share assistant is enabled for the workspace.
  imports: [TokenModule, TransclusionModule, AiModule],
-  controllers: [
-    ShareController,
-    ShareSeoController,
-    // Vanity /l/:alias: authenticated management + public 302 resolver.
-    ShareAliasController,
-    ShareAliasRedirectController,
-  ],
-  providers: [ShareService, ShareAliasService],
-  exports: [ShareService, ShareAliasService],
+  controllers: [ShareController, ShareSeoController],
+  providers: [ShareService],
+  exports: [ShareService],
 })
 export class ShareModule {}
--- a/apps/server/src/database/database.module.ts
+++ b/apps/server/src/database/database.module.ts
@@ -23,7 +23,6 @@ import { UserTokenRepo } from './repos/user-token/user-token.repo';
 import { UserSessionRepo } from '@docmost/db/repos/session/user-session.repo';
 import { BacklinkRepo } from '@docmost/db/repos/backlink/backlink.repo';
 import { ShareRepo } from '@docmost/db/repos/share/share.repo';
-import { ShareAliasRepo } from '@docmost/db/repos/share-alias/share-alias.repo';
 import { NotificationRepo } from '@docmost/db/repos/notification/notification.repo';
 import { WatcherRepo } from '@docmost/db/repos/watcher/watcher.repo';
 import { LabelRepo } from '@docmost/db/repos/label/label.repo';
@@ -97,7 +96,6 @@ import { normalizePostgresUrl } from '../common/helpers';
    UserSessionRepo,
    BacklinkRepo,
    ShareRepo,
-    ShareAliasRepo,
    NotificationRepo,
    WatcherRepo,
    LabelRepo,
@@ -130,7 +128,6 @@ import { normalizePostgresUrl } from '../common/helpers';
    UserSessionRepo,
    BacklinkRepo,
    ShareRepo,
-    ShareAliasRepo,
    NotificationRepo,
    WatcherRepo,
    LabelRepo,
--- a/apps/server/src/database/migrations/20260626T130000-share-aliases.ts
+++ b/apps/server/src/database/migrations/20260626T130000-share-aliases.ts
@@ -1,54 +0,0 @@
-import { type Kysely, sql } from 'kysely';
-
-/**
- * Vanity share aliases: a retargetable, human-readable pointer (`/l/<alias>`)
- * that lives independently of any single `shares` row. The alias belongs to the
- * WORKSPACE (stable address), and `page_id` is nullable with ON DELETE SET NULL
- * so the address survives deletion of its current target (it 404s until
- * retargeted) rather than disappearing with the page.
- */
-export async function up(db: Kysely<any>): Promise<void> {
-  await db.schema
-    .createTable('share_aliases')
-    .addColumn('id', 'uuid', (col) =>
-      col.primaryKey().defaultTo(sql`gen_uuid_v7()`),
-    )
-    .addColumn('workspace_id', 'uuid', (col) =>
-      col.references('workspaces.id').onDelete('cascade').notNull(),
-    )
-    // Normalized ASCII, lowercase. Uniqueness is enforced per-workspace below.
-    .addColumn('alias', 'varchar', (col) => col.notNull())
-    // Nullable + SET NULL: the address outlives its target page.
-    .addColumn('page_id', 'uuid', (col) =>
-      col.references('pages.id').onDelete('set null'),
-    )
-    .addColumn('creator_id', 'uuid', (col) =>
-      col.references('users.id').onDelete('set null'),
-    )
-    .addColumn('created_at', 'timestamptz', (col) =>
-      col.notNull().defaultTo(sql`now()`),
-    )
-    .addColumn('updated_at', 'timestamptz', (col) =>
-      col.notNull().defaultTo(sql`now()`),
-    )
-    .execute();
-
-  // The vanity name is unique within a workspace (mirrors shares.key scoping).
-  await db.schema
-    .createIndex('share_aliases_workspace_id_alias_unique')
-    .on('share_aliases')
-    .columns(['workspace_id', 'alias'])
-    .unique()
-    .execute();
-
-  // "Which alias targets this page?" lookup for the share modal.
-  await db.schema
-    .createIndex('share_aliases_page_id_idx')
-    .on('share_aliases')
-    .column('page_id')
-    .execute();
-}
-
-export async function down(db: Kysely<any>): Promise<void> {
-  await db.schema.dropTable('share_aliases').execute();
-}
--- a/apps/server/src/database/migrations/share-aliases.migration.spec.ts
+++ b/apps/server/src/database/migrations/share-aliases.migration.spec.ts
@@ -1,94 +0,0 @@
-import * as migration from './20260626T130000-share-aliases';
-import type {
-  InsertableShareAlias,
-  ShareAlias,
-  UpdatableShareAlias,
-} from '../types/entity.types';
-
-/**
- * Sanity checks for the share_aliases migration + entity types. We don't run a
- * live Postgres here (that's the integration suite); instead we assert the
- * migration exposes the expected up/down contract and creates the table with
- * the unique (workspace_id, alias) constraint and the page_id index, and that
- * the generated entity types line up with the column set.
- */
-describe('share-aliases migration', () => {
-  it('up creates the table, the unique index and the page_id index', async () => {
-    const calls: string[] = [];
-
-    const tableBuilder: any = new Proxy(
-      {},
-      {
-        get(_t, prop: string) {
-          if (prop === 'execute') return async () => undefined;
-          // addColumn/addConstraint/etc. are chainable no-ops.
-          return () => tableBuilder;
-        },
-      },
-    );
-
-    const indexBuilder: any = new Proxy(
-      {},
-      {
-        get(_t, prop: string) {
-          if (prop === 'execute') return async () => undefined;
-          return () => indexBuilder;
-        },
-      },
-    );
-
-    const schema = {
-      createTable: (name: string) => {
-        calls.push(`createTable:${name}`);
-        return tableBuilder;
-      },
-      createIndex: (name: string) => {
-        calls.push(`createIndex:${name}`);
-        return indexBuilder;
-      },
-    };
-
-    await migration.up({ schema } as any);
-
-    expect(calls).toContain('createTable:share_aliases');
-    expect(calls).toContain(
-      'createIndex:share_aliases_workspace_id_alias_unique',
-    );
-    expect(calls).toContain('createIndex:share_aliases_page_id_idx');
-  });
-
-  it('down drops the table', async () => {
-    const calls: string[] = [];
-    const dropBuilder: any = { execute: async () => undefined };
-    const schema = {
-      dropTable: (name: string) => {
-        calls.push(`dropTable:${name}`);
-        return dropBuilder;
-      },
-    };
-    await migration.down({ schema } as any);
-    expect(calls).toContain('dropTable:share_aliases');
-  });
-
-  it('entity types expose the alias columns', () => {
-    // Compile-time only: these typed declarations fail `tsc` if the entity types
-    // drift (missing/renamed columns, wrong nullability). The runtime assertions
-    // would be tautological, so the value is purely in the type-check.
-    const row: ShareAlias = {
-      id: 'a-1',
-      workspaceId: 'ws-1',
-      alias: 'foo',
-      pageId: 'p-1',
-      creatorId: 'u-1',
-      createdAt: new Date(),
-      updatedAt: new Date(),
-    };
-    const insert: InsertableShareAlias = {
-      workspaceId: 'ws-1',
-      alias: 'foo',
-    };
-    const update: UpdatableShareAlias = { pageId: null };
-
-    expect([row, insert, update]).toHaveLength(3);
-  });
-});
--- a/apps/server/src/database/repos/share-alias/share-alias.repo.spec.ts
+++ b/apps/server/src/database/repos/share-alias/share-alias.repo.spec.ts
@@ -1,120 +0,0 @@
-import { ShareAliasRepo } from './share-alias.repo';
-import type { KyselyDB } from '../../types/kysely.types';
-
-/**
- * SQL-shape unit tests for ShareAliasRepo. A live Postgres is out of scope;
- * instead we spy on the Kysely builder to assert each method pins the
- * workspace scope (so a name in one workspace can never resolve another's
- * page) and threads the right columns.
- */
-describe('ShareAliasRepo', () => {
-  function makeSelectRepo(result: unknown) {
-    const where = jest.fn();
-    const builder: any = {
-      select: jest.fn(() => builder),
-      where: jest.fn((...args: unknown[]) => {
-        where(...args);
-        return builder;
-      }),
-      executeTakeFirst: jest.fn().mockResolvedValue(result),
-    };
-    const db = { selectFrom: jest.fn(() => builder) } as unknown as KyselyDB;
-    return { repo: new ShareAliasRepo(db), db, where, builder };
-  }
-
-  it('findByAliasAndWorkspace scopes by alias AND workspace', async () => {
-    const row = { id: 'a-1', alias: 'foo', workspaceId: 'ws-1' };
-    const { repo, db, where } = makeSelectRepo(row);
-
-    const res = await repo.findByAliasAndWorkspace('foo', 'ws-1');
-
-    expect(res).toBe(row);
-    expect(db.selectFrom).toHaveBeenCalledWith('shareAliases');
-    expect(where).toHaveBeenCalledWith('alias', '=', 'foo');
-    expect(where).toHaveBeenCalledWith('workspaceId', '=', 'ws-1');
-  });
-
-  it('findByPageId scopes by page AND workspace', async () => {
-    const { repo, where } = makeSelectRepo(undefined);
-    await repo.findByPageId('p-1', 'ws-1');
-    expect(where).toHaveBeenCalledWith('pageId', '=', 'p-1');
-    expect(where).toHaveBeenCalledWith('workspaceId', '=', 'ws-1');
-  });
-
-  it('insert writes the provided columns and returns the row', async () => {
-    const values = jest.fn();
-    const inserted = { id: 'a-1' };
-    const builder: any = {
-      values: jest.fn((v: unknown) => {
-        values(v);
-        return builder;
-      }),
-      returning: jest.fn(() => builder),
-      executeTakeFirst: jest.fn().mockResolvedValue(inserted),
-    };
-    const db = { insertInto: jest.fn(() => builder) } as unknown as KyselyDB;
-    const repo = new ShareAliasRepo(db);
-
-    const res = await repo.insert({
-      workspaceId: 'ws-1',
-      alias: 'foo',
-      pageId: 'p-1',
-      creatorId: 'u-1',
-    });
-
-    expect(db.insertInto).toHaveBeenCalledWith('shareAliases');
-    expect(values).toHaveBeenCalledWith({
-      workspaceId: 'ws-1',
-      alias: 'foo',
-      pageId: 'p-1',
-      creatorId: 'u-1',
-    });
-    expect(res).toBe(inserted);
-  });
-
-  it('updatePageId retargets a single row scoped by id + workspace', async () => {
-    const set = jest.fn();
-    const where = jest.fn();
-    const builder: any = {
-      set: jest.fn((s: unknown) => {
-        set(s);
-        return builder;
-      }),
-      where: jest.fn((...args: unknown[]) => {
-        where(...args);
-        return builder;
-      }),
-      returning: jest.fn(() => builder),
-      executeTakeFirst: jest.fn().mockResolvedValue({ id: 'a-1' }),
-    };
-    const db = { updateTable: jest.fn(() => builder) } as unknown as KyselyDB;
-    const repo = new ShareAliasRepo(db);
-
-    await repo.updatePageId('a-1', 'p-2', 'ws-1');
-
-    expect(db.updateTable).toHaveBeenCalledWith('shareAliases');
-    expect(set.mock.calls[0][0].pageId).toBe('p-2');
-    expect(set.mock.calls[0][0].updatedAt).toBeInstanceOf(Date);
-    expect(where).toHaveBeenCalledWith('id', '=', 'a-1');
-    expect(where).toHaveBeenCalledWith('workspaceId', '=', 'ws-1');
-  });
-
-  it('delete scopes by id + workspace', async () => {
-    const where = jest.fn();
-    const builder: any = {
-      where: jest.fn((...args: unknown[]) => {
-        where(...args);
-        return builder;
-      }),
-      execute: jest.fn().mockResolvedValue(undefined),
-    };
-    const db = { deleteFrom: jest.fn(() => builder) } as unknown as KyselyDB;
-    const repo = new ShareAliasRepo(db);
-
-    await repo.delete('a-1', 'ws-1');
-
-    expect(db.deleteFrom).toHaveBeenCalledWith('shareAliases');
-    expect(where).toHaveBeenCalledWith('id', '=', 'a-1');
-    expect(where).toHaveBeenCalledWith('workspaceId', '=', 'ws-1');
-  });
-});
--- a/apps/server/src/database/repos/share-alias/share-alias.repo.ts
+++ b/apps/server/src/database/repos/share-alias/share-alias.repo.ts
@@ -1,109 +0,0 @@
-import { Injectable } from '@nestjs/common';
-import { InjectKysely } from 'nestjs-kysely';
-import { KyselyDB, KyselyTransaction } from '../../types/kysely.types';
-import { dbOrTx } from '../../utils';
-import {
-  InsertableShareAlias,
-  ShareAlias,
-} from '@docmost/db/types/entity.types';
-
-/**
- * Repository for vanity share aliases (`/l/:alias`). An alias is a long-lived,
- * workspace-scoped pointer to a page; retargeting is a single UPDATE of
- * `page_id`. All lookups are workspace-scoped so a name in one workspace can
- * never resolve a page in another.
- */
-@Injectable()
-export class ShareAliasRepo {
-  constructor(@InjectKysely() private readonly db: KyselyDB) {}
-
-  private baseFields: Array<keyof ShareAlias> = [
-    'id',
-    'workspaceId',
-    'alias',
-    'pageId',
-    'creatorId',
-    'createdAt',
-    'updatedAt',
-  ];
-
-  /** Resolve a (normalized) alias within a workspace, or undefined. */
-  async findByAliasAndWorkspace(
-    alias: string,
-    workspaceId: string,
-    trx?: KyselyTransaction,
-  ): Promise<ShareAlias | undefined> {
-    return dbOrTx(this.db, trx)
-      .selectFrom('shareAliases')
-      .select(this.baseFields)
-      .where('alias', '=', alias)
-      .where('workspaceId', '=', workspaceId)
-      .executeTakeFirst();
-  }
-
-  /** The alias currently pointing at a page (for the share modal). */
-  async findByPageId(
-    pageId: string,
-    workspaceId: string,
-    trx?: KyselyTransaction,
-  ): Promise<ShareAlias | undefined> {
-    return dbOrTx(this.db, trx)
-      .selectFrom('shareAliases')
-      .select(this.baseFields)
-      .where('pageId', '=', pageId)
-      .where('workspaceId', '=', workspaceId)
-      .executeTakeFirst();
-  }
-
-  async findById(
-    id: string,
-    workspaceId: string,
-    trx?: KyselyTransaction,
-  ): Promise<ShareAlias | undefined> {
-    return dbOrTx(this.db, trx)
-      .selectFrom('shareAliases')
-      .select(this.baseFields)
-      .where('id', '=', id)
-      .where('workspaceId', '=', workspaceId)
-      .executeTakeFirst();
-  }
-
-  async insert(
-    insertable: InsertableShareAlias,
-    trx?: KyselyTransaction,
-  ): Promise<ShareAlias> {
-    return dbOrTx(this.db, trx)
-      .insertInto('shareAliases')
-      .values(insertable)
-      .returning(this.baseFields)
-      .executeTakeFirst();
-  }
-
-  /** Retarget an existing alias to a new page (the "swap" operation). */
-  async updatePageId(
-    id: string,
-    pageId: string,
-    workspaceId: string,
-    trx?: KyselyTransaction,
-  ): Promise<ShareAlias> {
-    return dbOrTx(this.db, trx)
-      .updateTable('shareAliases')
-      .set({ pageId, updatedAt: new Date() })
-      .where('id', '=', id)
-      .where('workspaceId', '=', workspaceId)
-      .returning(this.baseFields)
-      .executeTakeFirst();
-  }
-
-  async delete(
-    id: string,
-    workspaceId: string,
-    trx?: KyselyTransaction,
-  ): Promise<void> {
-    await dbOrTx(this.db, trx)
-      .deleteFrom('shareAliases')
-      .where('id', '=', id)
-      .where('workspaceId', '=', workspaceId)
-      .execute();
-  }
-}
--- a/apps/server/src/database/repos/workspace/workspace.repo.ts
+++ b/apps/server/src/database/repos/workspace/workspace.repo.ts
@@ -21,6 +21,7 @@ export const AI_PROVIDER_SETTINGS_ALLOWED: readonly string[] = [
  'driver',
  'chatModel',
  'chatApiStyle',
+  'chatContextWindow',
  'embeddingModel',
  'baseUrl',
  'embeddingBaseUrl',
@@ -255,11 +256,17 @@ export class WorkspaceRepo {
  ): Promise<Workspace> {
    const db = dbOrTx(this.db, trx);
    // Assemble the provider object IN SQL. Keys are fixed provider field names
-    // (sql.lit -> inlined literals, no injection); values are bound params cast
-    // to ::text — postgres.js sends bound params untyped, and jsonb_build_object's
-    // value args are polymorphic ("any"), so without the explicit ::text cast
-    // Postgres throws "could not determine data type of parameter $1". The result
-    // is a real jsonb object, never a double-encoded string. The CASE self-heals
+    // (sql.lit -> inlined literals, no injection); values are bound params with
+    // an explicit cast — postgres.js sends bound params untyped, and
+    // jsonb_build_object's value args are polymorphic ("any"), so without the
+    // cast Postgres throws "could not determine data type of parameter $1". The
+    // cast is branched by the JS runtime type so the value lands in jsonb with
+    // the matching JSON type: a number stays a JSON number (e.g.
+    // chatContextWindow → `{"chatContextWindow":200000}`, jsonb_typeof 'number'),
+    // a boolean a JSON boolean, everything else a JSON string. A plain `::text`
+    // for all would store a numeric field as the JSON STRING `"200000"`, which
+    // the client's `typeof === "number"` guards reject. The result is a real
+    // jsonb object, never a double-encoded string. The CASE self-heals
    // workspaces whose settings.ai.provider was previously corrupted into an
    // array/string.
    const entries = Object.entries(provider).filter(
@@ -267,7 +274,14 @@ export class WorkspaceRepo {
    );
    const patch = entries.length
      ? sql`jsonb_build_object(${sql.join(
-          entries.flatMap(([k, v]) => [sql.lit(k), sql`${v}::text`]),
+          entries.flatMap(([k, v]) => [
+            sql.lit(k),
+            typeof v === 'number'
+              ? sql`${v}::numeric`
+              : typeof v === 'boolean'
+                ? sql`${v}::boolean`
+                : sql`${v}::text`,
+          ]),
        )})`
      : sql`'{}'::jsonb`;
    return db
--- a/apps/server/src/database/types/db.d.ts
+++ b/apps/server/src/database/types/db.d.ts
@@ -305,16 +305,6 @@ export interface Pages {
  ydoc: Buffer | null;
 }

-export interface ShareAliases {
-  alias: string;
-  createdAt: Generated<Timestamp>;
-  creatorId: string | null;
-  id: Generated<string>;
-  pageId: string | null;
-  updatedAt: Generated<Timestamp>;
-  workspaceId: string;
-}
-
 export interface Shares {
  createdAt: Generated<Timestamp>;
  creatorId: string | null;
@@ -684,7 +674,6 @@ export interface DB {
  pageVerifiers: PageVerifiers;
  pages: Pages;
  scimTokens: ScimTokens;
-  shareAliases: ShareAliases;
  shares: Shares;
  spaceMembers: SpaceMembers;
  spaces: Spaces;
--- a/apps/server/src/database/types/entity.types.ts
+++ b/apps/server/src/database/types/entity.types.ts
@@ -30,7 +30,6 @@ import {
  AuthProviders,
  AuthAccounts,
  Shares,
-  ShareAliases,
  Favorites,
  FileTasks,
  UserMfa as _UserMFA,
@@ -173,11 +172,6 @@ export type Share = Selectable<Shares>;
 export type InsertableShare = Insertable<Shares>;
 export type UpdatableShare = Updateable<Omit<Shares, 'id'>>;

-// Share alias (vanity /l/:alias pointer)
-export type ShareAlias = Selectable<ShareAliases>;
-export type InsertableShareAlias = Insertable<ShareAliases>;
-export type UpdatableShareAlias = Updateable<Omit<ShareAliases, 'id'>>;
-
 // Favorite
 export type Favorite = Selectable<Favorites>;
 export type InsertableFavorite = Insertable<Favorites>;
--- a/apps/server/src/integrations/ai/ai-provider-settings-keys.spec.ts
+++ b/apps/server/src/integrations/ai/ai-provider-settings-keys.spec.ts
@@ -41,3 +41,35 @@ describe('UpdateAiSettingsDto.chatApiStyle', () => {
    expect(errs.find((e) => e.property === 'chatApiStyle')).toBeUndefined();
  });
 });
+
+/** DTO validation for chatContextWindow (@IsOptional @IsInt @Min(0)). */
+describe('UpdateAiSettingsDto.chatContextWindow', () => {
+  const errorsFor = async (chatContextWindow: unknown) =>
+    validate(plainToInstance(UpdateAiSettingsDto, { chatContextWindow }));
+
+  it('accepts a non-negative integer (incl. 0 = clear the limit)', async () => {
+    for (const v of [0, 200000]) {
+      const errs = await errorsFor(v);
+      expect(
+        errs.find((e) => e.property === 'chatContextWindow'),
+      ).toBeUndefined();
+    }
+  });
+
+  it('rejects a negative value', async () => {
+    const errs = await errorsFor(-1);
+    expect(errs.find((e) => e.property === 'chatContextWindow')).toBeDefined();
+  });
+
+  it('rejects a non-integer value', async () => {
+    const errs = await errorsFor(1.5);
+    expect(errs.find((e) => e.property === 'chatContextWindow')).toBeDefined();
+  });
+
+  it('accepts the field being omitted (optional)', async () => {
+    const errs = await validate(plainToInstance(UpdateAiSettingsDto, {}));
+    expect(
+      errs.find((e) => e.property === 'chatContextWindow'),
+    ).toBeUndefined();
+  });
+});
--- a/apps/server/src/integrations/ai/ai-settings.service.ts
+++ b/apps/server/src/integrations/ai/ai-settings.service.ts
@@ -27,6 +27,8 @@ export interface UpdateAiSettingsInput {
  driver?: AiDriver;
  chatModel?: string;
  chatApiStyle?: ChatApiStyle;
+  // Chat context-window size (tokens); 0/empty clears the limit.
+  chatContextWindow?: number;
  embeddingModel?: string;
  baseUrl?: string;
  embeddingBaseUrl?: string;
@@ -162,6 +164,8 @@ export class AiSettingsService {
      chatModel: provider.chatModel,
      // Plain passthrough; getChatModel defaults unset to 'openai-compatible'.
      chatApiStyle: provider.chatApiStyle,
+      // Admin-configured context-window size; 0/unset = no limit (badge denominator).
+      chatContextWindow: provider.chatContextWindow,
      // Cheap model id for the anonymous public-share assistant; reuses the chat
      // driver/baseUrl/apiKey. Empty/unset → callers fall back to chatModel.
      publicShareChatModel: provider.publicShareChatModel,
@@ -244,6 +248,7 @@ export class AiSettingsService {
      driver: provider.driver,
      chatModel: provider.chatModel,
      chatApiStyle: provider.chatApiStyle,
+      chatContextWindow: provider.chatContextWindow,
      embeddingModel: provider.embeddingModel,
      baseUrl: provider.baseUrl,
      embeddingBaseUrl: provider.embeddingBaseUrl,
--- a/apps/server/src/integrations/ai/ai.types.ts
+++ b/apps/server/src/integrations/ai/ai.types.ts
@@ -35,6 +35,13 @@ export interface AiProviderSettings {
  // Chat provider implementation for the `openai` driver. Unset → defaults to
  // 'openai-compatible' (so reasoning is surfaced by default). See ChatApiStyle.
  chatApiStyle?: ChatApiStyle;
+  // Admin-configured chat model context-window size, in tokens. There is no
+  // provider-independent way to discover this (OpenAI's /v1/models usually omits
+  // it, Gemini/Ollama/OpenRouter each expose it differently), so it is entered
+  // manually. Surfaced to the chat client (via assistant message metadata) as the
+  // denominator of the header "current / max" context badge. Empty/0 = no limit
+  // known → the badge shows only the current context size.
+  chatContextWindow?: number;
  embeddingModel?: string;
  baseUrl?: string;
  // Embedding-specific base URL. Falls back to `baseUrl` when empty/unset.
@@ -73,6 +80,7 @@ export const PROVIDER_SETTINGS_KEYS = [
  'driver',
  'chatModel',
  'chatApiStyle',
+  'chatContextWindow',
  'embeddingModel',
  'baseUrl',
  'embeddingBaseUrl',
@@ -98,6 +106,10 @@ export const PROVIDER_SETTINGS_KEYS = [
 export interface ResolvedAiConfig extends Partial<AiProviderSettings> {
  driver?: AiDriver;
  chatModel?: string;
+  // Admin-configured chat context-window size (tokens); 0/unset = no limit. Used
+  // as the header context-badge denominator. Re-declared for parity with the
+  // explicit fields above.
+  chatContextWindow?: number;
  // Cheap model id for the public-share assistant; reuses the chat creds.
  publicShareChatModel?: string;
  // Agent-role id whose persona the public-share assistant adopts (empty/unset
@@ -117,6 +129,8 @@ export interface MaskedAiSettings {
  driver?: AiDriver;
  chatModel?: string;
  chatApiStyle?: ChatApiStyle;
+  // Admin-configured chat context-window size (tokens); 0/unset = no limit.
+  chatContextWindow?: number;
  embeddingModel?: string;
  baseUrl?: string;
  embeddingBaseUrl?: string;
--- a/apps/server/src/integrations/ai/dto/update-ai-settings.dto.ts
+++ b/apps/server/src/integrations/ai/dto/update-ai-settings.dto.ts
@@ -1,4 +1,4 @@
-import { IsIn, IsOptional, IsString } from 'class-validator';
+import { IsIn, IsInt, IsOptional, IsString, Min } from 'class-validator';
 import {
  AI_DRIVERS,
  AiDriver,
@@ -29,6 +29,13 @@ export class UpdateAiSettingsDto {
  @IsIn(CHAT_API_STYLES)
  chatApiStyle?: ChatApiStyle;

+  // Chat model context-window size in tokens (header context-badge denominator).
+  // 0 (or empty) clears the limit so the badge shows only the current context.
+  @IsOptional()
+  @IsInt()
+  @Min(0)
+  chatContextWindow?: number;
+
  @IsOptional()
  @IsString()
  embeddingModel?: string;
--- a/apps/server/src/main.ts
+++ b/apps/server/src/main.ts
@@ -40,14 +40,7 @@ async function bootstrap() {
  app.useLogger(app.get(PinoLogger));

  app.setGlobalPrefix('api', {
-    exclude: [
-      'robots.txt',
-      'share/:shareId/p/:pageSlug',
-      // Vanity link resolver lives outside /api so /l/<alias> is a clean
-      // public URL that 302s to the canonical share page.
-      'l/:alias',
-      'mcp',
-    ],
+    exclude: ['robots.txt', 'share/:shareId/p/:pageSlug', 'mcp'],
  });

  const reflector = app.get(Reflector);
--- a/apps/server/test/integration/workspace-repo-ai-provider-settings.int-spec.ts
+++ b/apps/server/test/integration/workspace-repo-ai-provider-settings.int-spec.ts
@@ -0,0 +1,91 @@
+import { Kysely, sql } from 'kysely';
+import { WorkspaceRepo } from '@docmost/db/repos/workspace/workspace.repo';
+import { getTestDb, destroyTestDb, createWorkspace } from './db';
+
+/**
+ * WorkspaceRepo.updateAiProviderSettings numeric round-trip (#189, #213).
+ *
+ * `chatContextWindow` is the first NUMERIC provider field routed through this
+ * generic SQL layer. The patch builder must cast a JS number so it lands in
+ * jsonb as a JSON NUMBER, not the JSON STRING `"200000"` — the client guards
+ * (`typeof === "number"`) reject a string, silently killing the `/ max` badge
+ * denominator. A plain `::text` cast (the prior code) regressed exactly this.
+ * These specs are real SQL and assert both the JS value type and the on-disk
+ * `jsonb_typeof`.
+ */
+describe('WorkspaceRepo.updateAiProviderSettings (numeric round-trip) [integration]', () => {
+  let db: Kysely<any>;
+  let repo: WorkspaceRepo;
+
+  beforeAll(() => {
+    db = getTestDb();
+    repo = new WorkspaceRepo(db as any);
+  });
+
+  afterAll(async () => {
+    await destroyTestDb();
+  });
+
+  it('stores chatContextWindow as a JSON number (not a "200000" string)', async () => {
+    const ws = await createWorkspace(db, { settings: undefined });
+
+    const updated = await repo.updateAiProviderSettings(ws.id, {
+      driver: 'openai',
+      chatModel: 'gpt-4o',
+      chatContextWindow: 200000,
+    });
+
+    // Returned row: the number survives as a real JS number, alongside the
+    // string fields which stay strings.
+    const provider = (updated.settings as any)?.ai?.provider;
+    expect(provider.chatContextWindow).toBe(200000);
+    expect(typeof provider.chatContextWindow).toBe('number');
+    expect(provider.driver).toBe('openai');
+    expect(provider.chatModel).toBe('gpt-4o');
+
+    // On disk: the jsonb value is typed 'number' (the must-fix assertion), and
+    // sibling string fields are typed 'string'.
+    const typed = await db
+      .selectFrom('workspaces')
+      .select([
+        sql<string>`jsonb_typeof(settings->'ai'->'provider'->'chatContextWindow')`.as(
+          'windowType',
+        ),
+        sql<string>`jsonb_typeof(settings->'ai'->'provider'->'chatModel')`.as(
+          'modelType',
+        ),
+      ])
+      .where('id', '=', ws.id)
+      .executeTakeFirstOrThrow();
+
+    expect(typed.windowType).toBe('number');
+    expect(typed.modelType).toBe('string');
+  });
+
+  it('re-reads chatContextWindow as a number after a partial-merge update', async () => {
+    const ws = await createWorkspace(db, {
+      settings: { ai: { provider: { driver: 'openai', chatModel: 'x' } } },
+    });
+
+    // Merge in only the numeric field; siblings must be preserved and the value
+    // must still be a JSON number, not a string.
+    await repo.updateAiProviderSettings(ws.id, { chatContextWindow: 128000 });
+
+    const row = await db
+      .selectFrom('workspaces')
+      .select([
+        'settings',
+        sql<string>`jsonb_typeof(settings->'ai'->'provider'->'chatContextWindow')`.as(
+          'windowType',
+        ),
+      ])
+      .where('id', '=', ws.id)
+      .executeTakeFirstOrThrow();
+
+    expect(row.windowType).toBe('number');
+    const provider = (row.settings as any)?.ai?.provider;
+    expect(provider.chatContextWindow).toBe(128000);
+    expect(provider.driver).toBe('openai');
+    expect(provider.chatModel).toBe('x');
+  });
+});