feat: v0.12.0 Settings window, per-session Remote Control, delete conversations

- Settings (⋯ → Settings…, palette): theme, terminal text size, interface
  size, notifications, Remote Control & privacy. The ⋯ menu shrinks.
- Remote Control per session: registry choice > Settings default >
  DEVDESK_REMOTE_CONTROL. Switching an idle session restarts its Claude
  on the same conversation; busy sessions change at the next start.
  rc_active comes from the running process; RC tag on sessions.
- --delete-convo: remove a conversation's local transcript and subagent
  files; refused while in use. Delete… in Search past conversations.
Closes #61

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WHRLCCdXYm41Qx5kNhehaP

debian/changelog

@@ -1,3 +1,22 @@
+devdesk (0.12.0) bookworm; urgency=medium
+
+  * Settings window, from the ⋯ menu or the palette (#61):
+    - Theme, terminal text size and interface size (per browser).
+    - Desktop notifications.
+    - Remote Control and privacy.
+    The ⋯ menu shrinks to five entries.
+  * Remote Control per session (#61):
+    - A default for new sessions and a switch for each running session.
+    - Switching an idle session restarts its Claude on the same
+      conversation; a busy one changes at its next start.
+    - Sessions that sync show an RC tag, read from the running process.
+    - Server side: --remote-control and --settings.
+  * Delete a conversation from Search past conversations (#61): its local
+    transcript and subagent files, for good (--delete-convo). Refused
+    while a running session uses it.
+
+ -- Jared Vititoe <jjvititoe1@gmail.com>  Tue, 03 Nov 2026 21:25:00 -0500
+
 devdesk (0.11.0) bookworm; urgency=medium
 
   * Explorer works like VS Code's (#54):