Changeset 0.17.3 (#78)

CHANGELOG.md

@@ -2,6 +2,92 @@
 
 All notable changes to Chat Switchboard.
 
+## [0.17.3] — 2026-02-28
+
+### Added
+- **Wikilink bi-directional linking.** Notes support `[[Title]]` and
+  `[[Title|display text]]` syntax. Links are extracted on save via regex,
+  resolved to target note IDs by case-insensitive title match, and stored
+  in a `note_links` junction table. Dangling links (references to notes
+  that don't exist yet) are preserved and automatically resolved when a
+  matching note is created later.
+- **Transclusion embeds.** `![[Title]]` syntax renders embedded note content
+  inline in read mode. Content is fetched asynchronously with a recursion
+  guard (max depth 1 — nested transclusions render as plain text references).
+  Transclusion links are visually distinct in both the editor (border-left,
+  italic) and the graph (dashed edges).
+- **Backlinks panel.** Read mode shows a collapsible "Linked mentions" panel
+  below the note content listing all notes that link to the current note.
+  Each backlink is clickable to navigate directly. Count badge updates on
+  every note open.
+- **Knowledge graph visualization.** Canvas-based force-directed graph with
+  no external dependencies (~480 lines). Physics: O(n²) Coulomb repulsion,
+  Hooke spring attraction on edges, center gravity. Interaction: pan, zoom
+  (0.15–4.0x toward cursor), drag nodes, hover highlights node + neighbors.
+  Click opens note editor. Nodes sized by √(link_count), colored by folder
+  path (10-color palette). Ghost nodes for unresolved `[[links]]` with
+  toggle button. Energy-based pause (stops rAF when total kinetic energy
+  falls below threshold). ResizeObserver for responsive canvas sizing.
+- **CM6 note editor.** New `CM.noteEditor()` factory function with live
+  markdown preview (heading sizes for h1–h3, blockquote styling, fenced code
+  block decorations), `[[wikilink]]` autocomplete triggered by `[[` with
+  async title search, and clickable wikilink chip rendering. Falls back to
+  plain `<textarea>` if CM6 bundle is unavailable.
+- **Wikilink autocomplete.** Typing `[[` in the note editor triggers an
+  async completion popup backed by `GET /notes/search-titles?q=`. Results
+  are fetched via `ILIKE` title match, limited to 8 suggestions. Selecting
+  a result inserts the full `[[Title]]` syntax.
+- **Daily notes.** "Today" button in the notes toolbar creates or opens a
+  daily note titled `Daily — YYYY-MM-DD` in the `/daily/` folder with a
+  starter template (Tasks + Notes sections). Idempotent — repeated clicks
+  navigate to the existing daily note.
+- **Save-to-note from chat.** "Note" button in message action bar captures
+  the full message content (or the current text selection within that message)
+  into a new note with pre-filled title extracted from the first line.
+  Provenance is tracked via `source_message_id` column on the notes table,
+  enabling future jump-to-source navigation.
+- **API endpoints.** Three new authenticated endpoints:
+  - `GET /notes/search-titles?q=&limit=` — lightweight title search for
+    autocomplete (returns `[{id, title}]`).
+  - `GET /notes/:id/backlinks` — notes linking to the specified note, with
+    display text and metadata.
+  - `GET /notes/graph` — full graph topology: nodes (with inbound/outbound
+    link counts), resolved edges, and unresolved (dangling) link titles.
+- **`note_links` table.** New junction table with `source_note_id`,
+  `target_note_id` (nullable for dangling links), `target_title`,
+  `display_text`, `is_transclusion`, and `created_at`. Primary key on
+  `(source_note_id, target_title)`. Index on `target_note_id` for backlink
+  queries. Migrations for both Postgres and SQLite.
+- **`source_message_id` column.** New nullable UUID column on `notes` table
+  for chat-to-note provenance tracking.
+- **Wikilink extraction package.** Standalone `notelinks/` package with
+  regex-based parser handling `[[Title]]`, `[[Title|Display]]`,
+  `![[Title]]`, and `![[Title|Display]]`. Deduplicates by lowercase title,
+  preserves first occurrence. 10 unit tests covering edge cases.
+
+### Changed
+- Notes editor replaces `<textarea>` with CM6 `noteEditor` instance. The
+  container `#noteEditorContentContainer` is lazily initialized on first
+  edit; destroyed on panel close to avoid stale state.
+- Note create and update handlers now extract wikilinks from content and
+  call `ReplaceLinks()` (transactional DELETE + batch INSERT). Create also
+  calls `ResolveByTitle()` to fix dangling links from other notes.
+- `showNotesList()` destroys the CM6 editor instance and hides graph view.
+- `saveNote()` and `deleteNote()` call `invalidateNoteGraph()` to clear
+  the cached graph data.
+- Read mode renders `[[wikilinks]]` as styled clickable chips via post-
+  processing of the formatted HTML. Clicking navigates to the linked note
+  or offers to create it if not found.
+- `ARCHITECTURE.md` updated with `notelinks/` package, `note-graph.js`,
+  `CM.noteEditor()` factory, and expanded notes description covering the
+  linking model.
+- `ROADMAP.md` updated with full v0.17.3 section including all checklist
+  items.
+- CM6 bundle entrypoint (`index.mjs`) exports `noteEditor` alongside
+  existing `chatInput` and `codeEditor`.
+- `theme.mjs` adds `noteEditorTheme` with full-height layout (min 200px,
+  max 60vh), heading size decorations, and blockquote styling.
+
 ## [0.17.2] — 2026-02-28
 
 ### Added