Update version, changelog, and roadmap for v0.4.1

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ROADMAP.md

@@ -1,6 +1,6 @@
 # Switchboard Core — Roadmap
 
-## Current: v0.4.0 — Notes Surface
+## Current: v0.4.1 — Folders + Navigation Tree
 
 Fork of chat-switchboard, gutted to a pure extension platform. All AI/chat
 features removed from the kernel. What remains is the minimum viable
@@ -242,18 +242,23 @@ Zero platform special-casing. Proves the full extension stack E2E.
 | Search | ✅ | Client-side LIKE search over title/body. Search bar in sidebar. |
 | Pin/archive | ✅ | Pin notes to top, soft-delete via archive, hard delete with `?hard=1`. |
 
-### v0.4.1 — Folders + Navigation Tree (planned)
+### v0.4.1 — Folders + Navigation Tree (complete)
 
-- `folders` table (name, parent_id, sort_order)
-- Folder CRUD API (4 routes) + note move
-- Collapsible folder tree in sidebar
-- Breadcrumb trail in editor
+| Step | Status | Description |
+|------|--------|-------------|
+| Folders table | ✅ | `ext_notes_folders` — name, parent_id, creator_id, sort_order. Indexed on parent_id and creator_id. |
+| Folder CRUD API | ✅ | 5 Starlark handlers: list, create, update, delete folders + `POST /notes/move`. Delete cascade orphans notes and reparents child folders. |
+| Folder tree UI | ✅ | `FolderTree` + `FolderNode` components. Flat-to-tree builder, expand/collapse, depth indentation, inline rename via context menu. |
+| Folder filtering | ✅ | Click folder → filter notes. "All Notes" / "Unfiled" virtual views. New notes inherit active folder. |
+| Editor folder select | ✅ | Dropdown with nested hierarchy (`└` prefix). Moves notes between folders via move-note API. |
+| Updated stats | ✅ | Stats include `unfiled` and `folders` counts. |
 
 ### v0.4.2 — Tags + Search (planned)
 
 - `note_tags` table (note_id, tag)
 - Tag management inline with note save
 - Tag filter in sidebar, tag pills on cards
+- Drag-and-drop note-to-folder moves
 
 ### v0.4.3 — Backlinks + Wikilinks (planned)