The 'current page' feature (client useMatch openPage + server getCurrentPage
tool + system-prompt injection) was already implemented & merged; this backfills
its missing test coverage and removes the completed backlog doc.
- extract pure resolveCurrentPageResult(openedPage) into current-page.util.ts
(byte-identical to the prior inline getCurrentPage tool body) so it is
unit-testable without the dynamically-imported ESM Docmost client; the tool
now delegates to it.
- current-page.util.spec.ts: 7 cases (null/undefined/no-id/empty-id/full/no-title).
- ai-chat.prompt.spec.ts: +8 cases for the openedPage context line (title+pageId
present, Untitled fallback for blank/whitespace title, no line when absent/blank
id, and sandwich ordering before the trailing safety block).
Verified live in-browser: client sends openPage{id,title} on a page and null
off-page; the agent invokes getCurrentPage and answers with the real title+id.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>