update roadmap and tasklist

ROADMAP.md

@@ -18,11 +18,11 @@
 ## Phase 3 — Polish
 
 - [x] Responsive terminal layout (adaptive sidebar, truncation, resize)
-- [ ] Channel tree navigation
+- [x] Channel tree navigation
-- [ ] User list with status indicators
+- [x] User list with status indicators
-- [ ] Volume control
+- [x] Volume control
-- [ ] Server certificate handling
+- [x] Server certificate handling
-- [ ] Config file hot-reload
+- [x] Config file hot-reload
 
 ## Phase 4 — Robustness
 

TASKLIST.md

@@ -8,8 +8,12 @@
 - [x] Audio pipeline integration with MumbleClient
 - [x] PTT wiring (key events -> audio.capturing toggle)
 - [x] Chat input history navigation (up/down arrows)
+- [x] Channel navigation and join from sidebar
+- [x] User status indicators (mute/deaf)
+- [x] Volume control (F2/F3, gain 0.0-2.0, status bar display)
+- [x] Server certificate handling (certfile/keyfile config)
+- [x] Config file hot-reload (F5, safe/restart change detection)
 
 ## Pending
 
-- [ ] Channel join/navigation (select channel in tree, move into it)
 - [ ] Reconnection handling on disconnect