Review finding #5: the git -> page body write (writeBody) did a full-body replace
(delete-all + re-insert) on the shared Yjs doc. Applied while a human is editing
the page, it discarded their in-flight changes; and TiptapTransformer.toYdoc ran
AFTER the fragment was cleared, so a conversion failure could leave the page with
an empty body.
Fixes:
- Active-session guard: CollaborationGateway.getActiveEditorCount(documentName)
reports live human (websocket) editor sessions for a doc, excluding server-side
direct connections. writeBody now throws ActiveEditSessionError when an editor
is connected. The engine's push loop already isolates each importPageMarkdown in
try/catch and does not advance the loop-guard on failure, so the write is simply
retried on the next poll once the editor disconnects — never a clobber.
- Crash-safe conversion: build the replacement Yjs update BEFORE opening the
connection / clearing the fragment, so a transform failure can never leave the
body empty.
Also updates the server-side converter gate spec to the corrected round-trip
shape: the block-image hoist no longer leaves a leading empty paragraph (the
git-sync converter fix in 7d39c16b, now reaching the built package).
A true merge of git content into a live Yjs session is out of scope (it needs a
real 3-way text merge with no shared update lineage); deferring the write while a
page is being edited is the safe, owner-approved minimum.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Native data plane for git-sync (plan §3, §8.1):
- provenance: widen actor to 'user'|'agent'|'git-sync' (jwt-payload,
auth-provenance decorator); PersistenceExtension resolves lastUpdatedSource
with precedence agent > git-sync > user, debounced history (like a human edit,
not the agent's immediate snapshot).
- GitmostDataSourceService implements @docmost/git-sync's GitSyncClient natively:
reads via PageRepo/SpaceRepo (listSpaceTree complete:true, getPageJson), writes
via PageService (create/removePage soft-delete/movePage with computed fractional
position/update-rename/restore) + the writeBody linchpin through collab
openDirectConnection('page.'+id, {actor:'git-sync'}) mirroring
collaboration.handler withYdocConnection 'replace'. bind({workspaceId,userId})
returns the context-bound client for the orchestrator.
- 10 unit/contract tests (mapping + soft-delete + move-position), tsc clean.
Known gap (closed in A.4b): PageService.create/update/movePage only branch on
actor==='agent'; git-sync provenance is already passed through so the row source
marker propagates once PageService honors 'git-sync'. Module/orchestrator/config
come next.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Make @docmost/git-sync natively consumable by the CommonJS server (and jest):
build to CommonJS (tsconfig module CommonJS, drop type:module, strip .js from
relative imports), and lazy-load the only ESM-only dep (marked) via the dynamic
Function('import()') trick (mirrors docmost-client.loader.ts) with a require()
fallback so vitest's evaluator works too. git-sync tests stay green (314 pass,
3 expected fail).
Add the §13.1 idempotency gate (apps/server .../git-sync-converter-gate.spec.ts):
13 editor-ext docs (paragraphs/headings, marks, links, bullet/ordered/task lists,
blockquote, callouts, code block, hr, table, nested mix) round-trip
content(editor-ext) -> convertProseMirrorToMarkdown -> markdownToProseMirror ->
TiptapTransformer.toYdoc/fromYdoc(tiptapExtensions) -> canonicalize and assert
docsCanonicallyEqual. All green => the vendored converter's docmost-schema is
schema-compatible with editor-ext (no node/mark/attr loss), which the plan §13.1
requires before Phase B. The one intrinsic markdown-image lossiness (width/height
/align can't ride plain ) is isolated in a KNOWN DIVERGENCE block, not
hidden. Server tsc clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Resolves the open items from the latest PR #143 code review:
- test(page): cover the four agentSourceFields stamp sites (create, update,
movePage, movePageToSpace) with agent + normal-user payload assertions;
add findById({ includeIsAgent: true }) wiring guards to the JWT and collab
auth-seam specs so a future drop of the option is caught.
- fix(privacy): drop `isAgent` from UserRepo.baseFields and gate it behind a
new opt-in `findById({ includeIsAgent })`, requested only by the two auth
seams that derive provenance — stops the flag leaking via the workspace
member list and generic user payloads.
- docs: correct the agentSourceFields JSDoc and the two UPDATE-site comments
to distinguish INSERT (omitted column → DB default 'user') from UPDATE
(omitted column → existing value kept, Kysely writes only present keys).
- style(page): collapse three stray double blank lines left by an earlier edit.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Architecture & design:
- Arch A: introduce resolveProvenance() as the single source of truth for
deriving a write's actor/aiChatId from the SIGNED identity, and wire it into
BOTH transport seams — the REST jwt.strategy and the collab
authentication.extension. Previously the collab seam derived actor from the
token claim alone and ignored user.isAgent, so a flagged service account's
page-content edits over the websocket persisted as lastUpdatedSource='user',
drifting from REST. The seams now share one resolver and can't diverge.
- Arch B: drop AiAgentBadge's page-history coupling. The generic ui/ badge no
longer imports historyAtoms; it exposes an onActivate callback fired after the
deep-link, and the history row passes onActivate to close its own modal.
Suggestions/warnings:
- S1: soften the jwt.strategy provenance comment (applies to every REST write).
- S2/suggestion-3: drop the redundant comment-list-item null-aiChatId test
(covered by ai-agent-badge.test.tsx).
- S3: de-duplicate jwt.strategy.spec test #3 (the no-claim→'user' half
duplicated test #2); keep only the signed actor='agent' claim assertion.
- W2: add keyboard-activation tests for the badge (Enter/Space, unrelated key).
- W3: flip the design doc status to "реализовано (#143)".
Tests:
- new auth-provenance.decorator.spec.ts unit-tests resolveProvenance +
agentSourceFields.
- new collab-seam test: is_agent user with no claim → actor='agent'
(Arch A regression guard).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- [warn 1] Document the is_agent operator setup so it survives plan deletion:
added an AI-agent block to .env.example (use a DEDICATED account, set is_agent
via SQL, never flag a human/shared account) + a CHANGELOG "Added" entry.
- [warn 2] Test the badge deep-link side effects: ai-agent-badge.test.tsx now
renders inside an explicit jotai store, clicks the badge, and asserts the
active chat id, window-open, cleared draft, closed history modal, AND that
stopPropagation keeps a parent onClick from firing.
- [suggestion 3] Hoist the window.matchMedia stub into vitest.setup.ts and drop
the duplicated beforeAll block from the three test files (ai-agent-badge,
comment-list-item, role-cards).
- [suggestion 4] Merge the two near-duplicate "non-clickable" cases via it.each.
- [follow-up 6] Introduce a single ProvenanceSource = 'user' | 'agent' type in
jwt-payload.ts and reference it from AuthProvenanceData, JwtPayload/
JwtCollabPayload, and resolveSource() — so a typo can't slip through as a bare
string. (Server auth chain; client IComment mirroring left as a follow-up.)
Follow-up 5 (shared agentSourceFields write-stamp helper) is deferred as the
review marked it — the 6 REST sites use varied shapes (create-spread vs
resolve-conditional-null vs page move), so it's a separate focused refactor.
Tests: client badge/comment/role-cards suites 11/11 pass; server auth+comment
suites 62 pass; typecheck clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Batches 6-9: behaviour-preserving extractions of testable pure cores plus the
tests they unblock, and a fix for the broken client test environment.
Full suites green: server 113 suites / 1117 + 1 todo, client 30 files / 338.
client (R0 infra):
- vitest.setup.ts: in-memory localStorage/sessionStorage Storage stub wired via
setupFiles. Unblocks menu-items.gating.test.ts (was 9 failing) -> client suite
fully green. + menu-items.suggestions.test.ts (getSuggestionItems filter/sort).
share:
- extract buildShareMetaHtml (share-seo.util.ts) from the SEO controller; tests
for reflected-XSS escaping in <title>/og/twitter meta, noindex, truncation;
extractPageSlugId; updateAttachmentAttr; prepareContentForShare comment-strip
(anonymous-viewer metadata-leak guard).
ai-chat (security extractions):
- selectAccessibleHits: CASL post-filter for semantic search (restricted page in
an accessible space must NOT leak to the agent).
- validateResolvedAddresses: SSRF connect-time guard (block if ANY resolved
address is private).
- resolveAudioFormat: mime whitelist (dead `?? 'webm'` fallback dropped, set
unchanged). + mcp-servers toView header-leak guard, MCP tool namespacing.
collaboration (data-loss area):
- extract computeHistoryJob (pins the "agent delay MUST stay 0" invariant) and
resolveSource. Integration: onAuthenticate read-only matrix (collab auth
bypass), HistoryProcessor (contributor restore on save failure), onStoreDocument
Approach-A boundary snapshot (human revision pinned before agent overwrite).
Reviewed (APPROVE WITH SUGGESTIONS): extractions behaviour-preserving, security
tests mutation-resistant.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Convert the htmlEmbed node from same-origin raw-HTML execution to a sandboxed
iframe (sandbox="allow-scripts allow-popups allow-forms", no allow-same-origin,
srcdoc) with postMessage auto-resize (validated by event.source) and an optional
manual height attr. The block now runs in an opaque origin and cannot reach the
viewer's cookies/session/API, so it is safe for any member.
Because the block is now harmless, remove the entire admin/role gating apparatus:
drop htmlEmbedAllowed/canAuthorHtmlEmbed/stripDisallowedHtmlEmbedNodes/
collectHtmlEmbedSources and every role-based strip on the write paths (collab
REST/MCP + socket, page create/duplicate, import x2, transclusion unsync), along
with the now-unused WorkspaceRepo/UserRepo injections and the PageService.create
callerRole param. Keep one strip: prepareContentForShare still removes htmlEmbed
on the anonymous public-share read path when the workspace master toggle is OFF.
The workspace settings.htmlEmbed toggle is now a plain feature switch (gates the
slash-menu and share rendering); when ON the block is available to all members.
Add settings.trackerHead: an admin-only raw HTML/JS analytics snippet injected
verbatim into the <head> of public share pages only (ShareSeoController), for
trackers that genuinely need same-origin. Admin-gated via the existing CASL
Manage/Settings ability; never injected into the authenticated app shell.
Closes security-review findings #1, #2, #4, #5, #10 (and #3 as a security issue).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Resolve conflicts at shared registration points by unioning both features
(footnotes + the already-merged html-embed / page-embed work):
- slash-menu/menu-items.ts, editor extensions.ts: keep both imports + configures
- collaboration.util.ts: register footnote nodes and pageEmbed
- editor-ext marked.utils.ts: register footnote + html-embed markdown extensions
- editor-ext package.json/tsconfig.json/vitest.config.ts: union of test config
(jsdom env for footnote DOM tests + combined test/spec include glob)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
PageTemplateController (added on this branch) guards its lookup/toggle routes
with UserThrottlerGuard, which depends on the throttler options provided by
ThrottleModule. CollaborationModule -> TransclusionModule registers that
controller, and the collab server bootstraps CollabAppModule, which did not
import ThrottleModule. The API server's AppModule does, so :3000 booted, but
the collab server (:3001) crashed at startup with
'Nest can't resolve dependencies of the UserThrottlerGuard ... THROTTLER:MODULE_OPTIONS'.
Without collab the editor can't sync, so live editing was broken on this branch.
Import ThrottleModule into CollabAppModule, mirroring AppModule, so the guard
resolves in the collab process too.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The admin-only raw HTML/JS embed is a deliberate stored-XSS surface, so gate the
whole feature behind a workspace toggle that is OFF by default; it only works
when a workspace admin explicitly enables it.
- settings.htmlEmbed (boolean, default false) + workspace-update field htmlEmbed,
persisted via WorkspaceRepo.updateSetting with an audit diff. Flipping it is
admin-only (same Manage Settings CASL as other workspace toggles).
- New gate htmlEmbedAllowed(featureEnabled, role) = featureEnabled && admin/owner.
All 7 server write paths (create, duplicate, collab onStoreDocument, REST/MCP/AI
updatePageContent, single + zip import, transclusion unsync) now read the
workspace's settings.htmlEmbed and strip unless (toggle ON AND admin). OFF
(default, or a failed/empty workspace lookup) strips htmlEmbed for EVERYONE
including admins -> existing embeds are cleaned up on next save, none persist.
- Client (defense-in-depth): the /html slash item is hidden unless toggle ON +
admin; the NodeView executes nothing and shows a 'disabled in this workspace'
placeholder when OFF; an admin Switch in Workspace Settings -> General with a
description of the behavior.
- docs/html-embed-admin.md documents the toggle + admin-only + fail-closed
coedit (a non-admin save strips an admin's embed) + execution semantics.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Release-cycle test audit: the strip boundary was tested only via a stand-in
helper re-implemented in the spec, so a deleted/misplaced guard kept CI green
(the missing create() guard was proof). Replace it with tests against real code:
- persistence.extension.onStoreDocument: real ydoc from a rich doc (columns/
table/mention/htmlEmbed) -> non-admin strip removes only htmlEmbed, every other
node preserved (data-loss guard); admin keeps; empty fragment no-throw.
- collaboration.handler.updatePageContent: real path, user?.role gate, decoded
ydoc embed-free for non-admin, kept for admin.
- transclusion unsync: member stripped, admin preserved.
- editor-ext gains a vitest setup (was zero tests) + a markdown round-trip:
the <!--html-embed:BASE64--> marker -> htmlEmbed node with decoded source, and
hasHtmlEmbedNode matches it — pinning the marked/turndown shape the import
strip relies on. tsconfig now excludes specs from the shipped dist.
- Fail-closed identity: source-pinned contracts that the gate keys on
fileTask.creatorId (zip) / request userId (single) / callerRole (create) /
authUser.role (duplicate), and missing-user -> strip (services can't load under
jest's ESM graph; helpers replay the exact predicate).
Adds the verified-safe ^src/ jest moduleNameMapper (identical fail set).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds footnotes: a superscript marker in the text linked to an editable
definition in a Footnotes section at the end of the page, with auto-numbering
and a read-only hover popover. Chose the reference+definitions model (3 plain
nodes) over an inline atom with a sub-editor specifically for collaboration
safety.
editor-ext (packages/editor-ext/src/lib/footnote/):
- footnoteReference (inline atom, id), footnotesList (block, last child),
footnoteDefinition (paragraph+, id). renderHTML emits sup[data-footnote-ref]
/ section[data-footnotes] / div[data-footnote-def]; parse-rule priority makes
the empty reference win over the Superscript mark (else it is dropped on the
server save).
- numbering: a decoration-only plugin (pure function of doc order) -> every
client computes identical numbers, no document mutation, Yjs-safe.
- sync plugin: single-pass, always SYNC_META-tagged and skipping remote txns
(terminates, no loop), idempotent; canonicalizes to one trailing footnotesList
(merging duplicates), creates missing definitions, drops orphans, and
coexists with TrailingNode. Disabled in read-only.
- commands setFootnote (one tx: reference + definition at the matching index +
focus) / removeFootnote (cascade, one undo) / scrollTo*. slash /footnote.
client: superscript NodeView + floating-ui read-only popover; bottom-list and
definition NodeViews; registered in mainExtensions.
server: the three nodes registered in tiptapExtensions so collab/save/export
keep them. Round-trip regression spec guards the Superscript parse-priority.
markdown: turndown/marked round-trip to pandoc/GFM [^id] (+ a code-fence guard
so footnote-like lines inside code blocks are not extracted).
MCP mirror: schema + markdown-converter + commentsToFootnotes rewritten to real
footnote nodes + diff marker counting; NUL sentinels written as \u0000 escapes.
v2 follow-ups (per plan): definition reordering on reference move, id-collision
regeneration on paste, multiple references to one footnote.
Implements docs/footnotes-plan.md (variant B).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Embed another page's LIVE content into a host page (it updates when the source
changes, not a static copy). A page can be flagged a template for discovery in
the picker; any accessible page can be embedded.
Server:
- migrations: pages.is_template (+ partial index) and page_template_references
(whole-page back-refs); db.d.ts/entity types hand-merged (db.d.ts is curated).
- POST /pages/toggle-template (CASL Edit) flips is_template; is_template is
returned by findById + the sidebar tree select so the tree menu label
reflects state. Search suggestions gain an onlyTemplates filter for the picker.
- POST /pages/template/lookup ({sourcePageIds[]}, <=50): returns each accessible
source's {title, icon, slugId, content, sourceUpdatedAt} with comment marks
stripped (same access path as transclusion: filterViewerAccessiblePageIds;
inaccessible -> no_access, missing -> not_found; error path -> not_found, never
raw content).
- reference sync (collectPageEmbedsFromPmJson + syncPageTemplateReferences) on
the Yjs save hook; duplicatePage remaps pageEmbed.sourcePageId + inserts refs.
Known MVP gap: REST content updates don't resync refs (lookup uses in-doc ids).
Client:
- pageEmbed node (editor-ext, registered in BOTH client + server schemas);
read-only NodeView with a batching lookup; '/Embed page' slash + template
picker (self-embed prevented); 'Make/Unset template' in the tree node menu.
- Cycle guard: an ancestry-chain context + depth cap (5) render a 'circular
embed' placeholder instead of recursing.
- Public shares show a placeholder (no public lookup in MVP).
MVP excludes (follow-ups): public-share lookup, unsync->static copy, server-side
expansion for export/RAG, MCP schema mirror, point-in-time snapshots.
Implements docs/page-templates-plan.md (MVP, variant A).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds an htmlEmbed block node that renders and executes raw HTML/CSS/JS in the
wiki origin (e.g. an analytics tracker) — the owner-chosen variant C. Because
this is stored-XSS by design, only workspace admins/owners may get such a node
persisted; everyone executes it when reading.
- Node (editor-ext): htmlEmbed atom/isolating block; source stored base64 in
data-source for lossless HTML<->JSON round-trip. renderHTML emits only the
encoded marker (never inlines raw markup), so generateHTML/export/search are
not themselves injection vectors. Registered in BOTH client extensions and
server tiptapExtensions. Markdown round-trip via an <!--html-embed:b64-->
comment (turndown) + a marked rule.
- Client NodeView: injects source and re-creates <script> elements so they
actually run; edit modal; renders in read-only/share too. Slash item is
admin-gated (adminOnly filtered by the user's workspace role).
- SERVER ENFORCEMENT (the real control — UI gating alone is insufficient):
stripHtmlEmbedNodes() removes htmlEmbed from any document persisted by a
non-admin, applied at every write path that introduces content from an
untrusted author: collab onStoreDocument, REST/MCP/AI updatePageContent,
single-file import, zip/multi-file import, page duplication, and transclusion
unsync. Page restore introduces no new content. Public share/readonly viewers
render fetched (already-stripped) content and do NOT open a collab socket, so
the only residual is a transient broadcast window to concurrent authenticated
editors (documented).
Implements docs/arbitrary-html-embed-plan.md (variant C).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
BullMQ rejects custom job IDs containing ':' (Redis key separator),
throwing "Custom Id cannot contain :" inside the onStoreDocument hook
for every agent edit. This broke agent-driven page saves (MCP
create_page runs as actor='agent') with HTTP 400.
Switch the agent dedup suffix from `${page.id}:agent` to
`${page.id}-agent`. The jobId is only used as a BullMQ dedup key and is
never parsed by the history processor; page.id is a UUID, so the
hyphenated id cannot collide with a human job whose id is a bare page.id.
Page-history snapshots are debounced/coalesced (one per 1–5 min window,
jobId=page.id). A human edit followed by an agent edit in the same window
collapsed into a single snapshot, losing both the pre-agent human state and
a deterministic record of the agent's result.
Two provenance-aware boundaries now bracket an agent intervention:
- Before: on a user->agent transition, onStoreDocument synchronously pins the
current (pre-agent) human content as its own history version tagged 'user',
inside the page-write transaction, before the agent overwrites it.
- After: agent stores enqueue an immediate (delay 0), source-keyed history job
(jobId=`${pageId}:agent`) so the agent's result snapshots deterministically
as 'agent' and a later human edit (jobId=page.id) cannot coalesce/retag it.
Also add an `id desc` tie-break to findPageLastHistory so "last history" stays
deterministic when two snapshots share a created_at, consistent with
findPageHistoryByPageId.
Known trade-offs (Variant 1): the delay-0 worker re-reads the row, leaving a
millisecond mis-tag window; multiple agent edits in one turn may yield multiple
versions. The reverse agent->human boundary is intentionally out of scope.
WIP checkpoint of the gitmost AI-chat backend (plan stages A + B1 + B3a).
The agent acts under the requesting user's JWT (Docmost CASL enforces page
access); the external service-account /mcp endpoint is untouched.
LLM provider config (A2-A4):
- integrations/crypto: AES-256-GCM SecretBoxService (key derived from APP_SECRET,
per-record salt/iv; clear error on rotation instead of crashing).
- ai_provider_credentials table/repo/types: encrypted API key stored outside
workspace settings/baseFields, write-only (never returned by any endpoint).
- integrations/ai: per-workspace AI SDK v6 provider driver (openai/gemini/ollama),
admin-gated GET(masked)/PATCH(write-only key)/Test endpoints; settings.ai.provider
holds non-secret config incl. systemPrompt. Removed unused AI_* env getters (DB is
the single source of truth).
Chat module (A1, A5-A8):
- ai_chats/ai_chat_messages repos (workspace-scoped, soft-delete, tsv never selected).
- core/ai-chat: CRUD + POST /ai-chat/stream (Fastify hijack + AI SDK v6
pipeUIMessageStreamToResponse, abort on disconnect, persist user/assistant msgs).
- Agent loop: streamText + stepCountIs(8); read tools searchPages/getPage via a
per-request DocmostClient over loopback REST under the user's minted access token.
- Gate settings.ai.chat (+ 503 when provider unconfigured); buildSystemPrompt with a
non-removable safety/anti-prompt-injection framework. Per-user rate limit.
Per-user auth (B1):
- @docmost/mcp DocmostClient gains an additive getToken variant (carry a user JWT,
re-fetch on 401) and exports DocmostClient; the email/password service-account path
(external /mcp, stdio) is unchanged.
Agent-edit provenance backbone (B3a):
- Migration: pages/page_history (last_updated_source, last_updated_ai_chat_id) and
comments (created_source, ai_chat_id, resolved_source).
- Signed actor/aiChatId claim in the collab token; onAuthenticate propagates it,
onStoreDocument writes it with a sticky agent marker, saveHistory copies it.
Migrations auto-run on boot (additive). Write tools, frontend, RAG and external MCP
servers are not in this checkpoint.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* feat: new image menu
* switch to resizable side handles
* use pixels
* refactor excalidraw and drawio menu
* support image resize undo
* video resize
* callout menu refresh
* refresh table menus
* fix color scheme
* fix: patch @tiptap/core ResizableNodeView to prevent resize sticking after mouseup
* feat: columns
* notes callout
* focus on first column
* capture tab key in column
* fix print
* hide columns menu when some nodes are focused
* fix print
* fix columns
* selective placeholder
* fix blockquote
* quote
* fix callout in columns
* Show actual history changes
* V2 - WIP
* feat: page history diff
* fix: exclude content from history listing
---------
Co-authored-by: Jason Norwood-Young <jason@10layer.com>
* feat(export): add metadata file to preserve page icons and ordering on import
- Export includes `docmost-metadata.json`
- Import reads metadata to restore icons and sort siblings by original position
* cleanup
* bonus fixes
* handle unknown prosemirror nodes
* add docmost app version
* feat: add heading extension with unique ID support and scroll functionality
* Added unique id for heading
* remove baseUrl heading storage
* move heading to extensions package
* WIP
* support anchors in mentions
* enhance scrolling functionality
* nodeId function
* fix nanoid import
* Bring unique-id extension local
* fixes
* fix internal link scroll in public pages
* add unique id server side
* rename mention anchor to anchorId
* capture first anchorId on paste
---------
Co-authored-by: Romik <40670677+RomikMakavana@users.noreply.github.com>
