Keep cited-by results current as vault facts change

[aidenlx]

Parent

#689

What to build

Keep the complete cited-by result synchronized with vault and Zotero facts while the sidebar is open. The Citation Index observation owns every refresh rule, so the view receives coherent snapshots without subscribing to low-level citation, metadata, database, or backfill events.

Acceptance criteria

• Literal-citation edits and position-only changes refresh affected results.
• Wikilink-only metadata changes refresh affected results.
• Markdown-note creation, deletion, and rename add, remove, or move source groups.
• Literature Note rename, deletion, and zotero-key changes refresh target and wikilink resolution.
• Link-resolution changes refresh wikilink results.
• Citation-library changes and Zotero database refreshes update literal citekey results.
• Citation Index reset, each useful backfill contribution, and backfill completion publish coherent states.
• Related invalidations are coalesced, and structurally identical snapshots do not publish again.
• Superseded asynchronous work cannot publish stale snapshots.
• Disposal prevents all later publication and isolates observer failures from Citation Index lifecycle processing.
• Reverse recomputation reads existing scans and metadata caches without reading note bodies or adding persisted reverse data.
• The existing Citation Index harness verifies refresh behavior only through published snapshots.

Blocked by

• Ticket 2: Include wikilink citations through Item identity.
• Ticket 3: Report progressive and degraded citation coverage.

[aidenlx]

Completed in commit 921098f0.

Delivered live refresh handling for citation, metadata, vault, Literature Note identity, citation-library, database, reset, and backfill changes. Recomputations coalesce invalidations, suppress equal snapshots, reject stale generations, and stop after disposal. The Citation Index harness covers these behaviors through published snapshots.