Changeset 0.17.3 (#78)

docs/ROADMAP.md

@@ -61,12 +61,15 @@ v0.16.0 User Groups    v0.17.0 Persona-KB Binding
   ┌───────┴──────────────┐
   │                      │
 v0.17.1 SQLite Backend ✅ v0.17.2 CodeMirror 6 ✅
+v0.17.3 Notes Graph + Wikilinks
   (dual DB)              (editor bundle, chat
   │                       input, ext editor)
   └───────┬──────────────┘
           │
 v0.18.0 Memory (user + persona scopes, review pipeline)
           │
+v0.18.1 Side Panel Architecture (independent panels, dual-view)
+          │
 v0.19.0 Projects / Workspaces + Notifications
           │
 v0.20.0 @mention Routing + Multi-model
@@ -337,6 +340,57 @@ Depends on: nothing (frontend-only). Prerequisite for: extension surfaces
 
 ---
 
+## v0.17.3 — Notes Graph + Wikilinks
+
+Knowledge graph and bi-directional linking for the notes system. Transforms
+notes from flat documents into an interconnected knowledge base with
+Obsidian-style `[[wikilinks]]`, backlinks, graph visualization, and
+transclusion.
+
+Depends on: CodeMirror 6 (v0.17.2), Notes CRUD (v0.13.x). See
+[DESIGN-0.17.3.md](DESIGN-0.17.3.md) for full spec.
+
+**Backend: Note Links**
+- [x] `note_links` table (Postgres + SQLite migrations)
+- [x] `NoteLinkStore` interface + both implementations
+- [x] `ExtractWikilinks()` regex parser + tests
+- [x] Link extraction on note create/update
+- [x] Dangling link resolution on note create
+- [x] `notes.source_message_id` column for chat-to-note provenance
+
+**API Endpoints**
+- [x] `GET /notes/:id/backlinks` — notes linking to this note
+- [x] `GET /notes/search-titles?q=` — lightweight fuzzy search for autocomplete
+- [x] `GET /notes/graph` — full graph topology (nodes + edges + unresolved)
+
+**CM6 Note Editor**
+- [x] `note-editor.mjs` factory: markdown live preview (heading sizes, blockquotes, code blocks)
+- [x] `wikilink.mjs` CM6 extension: parse, decorate as clickable chips, autocomplete on `[[`
+- [x] Textarea → CM6 swap in `notes.js` with graceful fallback
+- [x] `noteEditorTheme` in `theme.mjs`
+
+**Graph Visualization**
+- [x] Canvas-based force-directed graph (~200 lines, no d3 dependency)
+- [x] O(n²) Coulomb repulsion + Hooke spring + center gravity
+- [x] Pan, zoom (0.15–4.0x), drag nodes, hover highlight, click to open
+- [x] Node sizing by link_count, folder-based coloring
+- [x] Ghost nodes for unresolved `[[links]]` with toggle
+- [x] Energy-based pause (stop rAF below KE threshold)
+- [x] ResizeObserver for responsive canvas
+
+**Note-from-Selection + Daily Notes**
+- [x] "Note" button in message action bar
+- [x] Selection-aware capture (`window.getSelection()` within message)
+- [x] Provenance tracking (`source_channel_id` + `source_message_id`)
+- [x] "Today" button → find-or-create daily note in `/daily/`
+
+**Read Mode**
+- [x] `[[link]]` rendered as clickable wikilink chips
+- [x] `![[embed]]` transclusion with async content fetch, recursion guard
+- [x] Backlinks panel (collapsible, with count badge)
+
+---
+
 ## v0.18.0 — Memory (User + Persona Scopes)
 
 Long-term memory across conversations, with scope-aware isolation.
@@ -398,6 +452,37 @@ Depends on: compaction (v0.15.0), knowledge bases (v0.14.0), persona-KB binding
 
 ---
 
+## v0.18.1 — Side Panel Architecture
+
+Refactor the side panel system so Notes, HTML/code previews, and future
+panels (knowledge base browser, search results) operate independently
+rather than sharing a single slot. Currently, opening Notes hides the
+preview panel and vice versa — this is confusing when reviewing AI-
+generated HTML/documents while also managing notes.
+
+Depends on: Notes graph + wikilinks (v0.17.3). Prerequisite for: live
+collaboration (v0.23.0) where multiple panels need simultaneous visibility.
+
+**Panel System**
+- [ ] Panel registry: named panels with independent open/close state
+- [ ] Dual-view mode: two panels side-by-side (configurable split ratio)
+- [ ] Tab-persistent state: each panel remembers scroll position, open note, etc.
+- [ ] Panel priority: when space is tight (mobile), most-recently-opened wins
+- [ ] Keyboard shortcut: Ctrl/Cmd+\ cycles panels, Ctrl/Cmd+Shift+\ toggles dual
+
+**Preview Panel**
+- [ ] Dedicated preview panel (independent of Notes)
+- [ ] HTML/document preview with iframe sandbox
+- [ ] Code output preview (extension-rendered blocks)
+- [ ] Live-updating during streaming responses
+
+**Mobile**
+- [ ] Swipe navigation between panels
+- [ ] Bottom sheet mode for secondary panel
+- [ ] Graceful collapse to single-panel on narrow viewports
+
+---
+
 ## v0.19.0 — Projects / Workspaces + Notifications
 
 Organizational containers that group related conversations, KBs, and