feat: dynamic logo from synced assets + SVG favicon

Logo handler now checks Hub-synced assets first, falling back to
embedded SVG. Added SVG favicon to layout and catchall templates.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,13 @@
 ## Changelog
 
+### v0.29.2 — Dynamic Logo & Favicon (2026-02-25)
+
+#### Changed
+- **Logo served from synced assets** (`internal/web/server.go`) — `serveLogoHandler` now checks the Hub-synced assets directory for `felhom-logo.svg` first, falling back to the embedded SVG constant if not found. This allows logo updates via Hub without a controller rebuild.
+
+#### Added
+- **SVG favicon** (`templates/layout.html`, `templates/catchall.html`) — Added `<link rel="icon" type="image/svg+xml">` pointing to `/static/felhom-logo.svg` so browsers display the Felhom logo as a tab icon.
+
 ### v0.29.1 — Fix Git Lock File Stale After Interrupted Sync (2026-02-24)
 
 #### Fixed