feat: v0.9.0 conversation search, plan usage meters, quiet phone at the desk

- devdesk attach --search (grep + jq over ~/.claude/projects, six files at
  a time) and --resume-convo NAME ID [fork]; devdesk-claude-run passes
  --fork-session once. Search dialog with Resume / Fork / Open.
- statusLine snapshots rate_limits and pr; footer/menu meters with a 90 %
  warning; PR chip on session rows.
- CLAUDE_CLIENT_PRESENCE_FILE per tmux session id; --presence on|off with a
  self-expiring marker; the page heartbeats it while visible.

Closes #24
Closes #25
Closes #26

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

debian/changelog

@@ -1,3 +1,26 @@
+devdesk (0.9.0) bookworm; urgency=medium
+
+  * Search past conversations (#24): every Claude conversation on this host
+    (DevDesk and code-server), by what you asked, what Claude said, the
+    commands it ran and their output (⋯ menu or the palette). Results show
+    the title, folder, dates and highlighted snippets; Resume opens the
+    conversation in a new session in its folder, Fork continues it as a new
+    conversation (claude --fork-session) and leaves the original as it is.
+    A conversation already open in a running session offers "Open" instead,
+    and resuming it twice is refused.
+  * Plan usage and PRs (#25): the 5-hour and weekly plan windows from
+    Claude's statusLine, as meters in the footer (⋯ menu on phones), with a
+    warning at 90 % of the 5-hour window; a PR chip (with review state) on
+    sessions whose branch has a pull request. (The statusLine has no prompt
+    cache expiry, so there is no cache timer.)
+  * Phone pushes held back while you're at the desk (#26): while a DevDesk
+    tab shows a session, its Claude sees a client-presence marker
+    (CLAUDE_CLIENT_PRESENCE_FILE) and Remote Control holds back pushes; the
+    marker expires about 2 minutes after the tab stops showing it. Applies to
+    sessions whose Claude started on this version (/exit, then ⏎).
+
+ -- Jared Vititoe <jjvititoe1@gmail.com>  Sat, 10 Oct 2026 21:44:07 -0400
+
 devdesk (0.8.2) bookworm; urgency=medium
 
   * Click file paths in the terminal (#21): a path Claude prints