fix: v0.9.1 robustness cleanups

- run_resume falls back to a new conversation only when the transcript file
  is gone; other failures end at the menu with the recorded id intact.
- The SessionStart hook resolves the session name under the registry lock;
  rename holds it across tmux rename-session and the registry move
  (dd_registry_locked, nestable).
- dd_load_env parses KEY=value like systemd instead of sourcing the files.
- devdesk-deploy: DPkg::Lock::Timeout, explicit FAILED lines on stdout and in
  the log; the hook answers synchronously and CI checks the HTTP status.
  logrotate for the deploy log.
- postinst drops duplicate terminal-features entries; hooks sweep stale
  temp files.

Closes #12

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

debian/changelog

@@ -1,3 +1,28 @@
+devdesk (0.9.1) bookworm; urgency=medium
+
+  * Robustness (#12):
+    - A resume that fails (an early Ctrl+C, a network error) no longer
+      replaces the session's recorded conversation with a new one: Claude
+      starts fresh only when the conversation's file is really gone;
+      otherwise the menu offers to try again.
+    - The SessionStart hook reads the session name under the registry lock
+      that rename holds, so renaming during /clear or a restart can't leave
+      the conversation id under the old name.
+    - Env files are parsed the way systemd parses them instead of being
+      sourced: values are literal (no $ expansion or command substitution),
+      and bad lines are reported and skipped.
+    - Deploys wait for the dpkg lock (120 s), log an explicit "deploy
+      FAILED" line, and the webhook answers with the result, so CI's deploy
+      job fails (and alerts) when the install fails. The deploy log is
+      rotated monthly.
+    - postinst removes the duplicate tmux terminal-features entries left by
+      upgrades before 0.3.1.
+    - Temp files of hooks killed mid-write are swept.
+    - NPM now sends X-Frame-Options DENY and CSP frame-ancestors 'none' for
+      dev.lotusguild.org (proxy config, not part of the package).
+
+ -- Jared Vititoe <jjvititoe1@gmail.com>  Sun, 11 Oct 2026 01:01:33 -0400
+
 devdesk (0.9.0) bookworm; urgency=medium
 
   * Search past conversations (#24): every Claude conversation on this host

debian/devdesk.logrotate

@@ -0,0 +1,8 @@
+/var/log/devdesk-deploy.log {
+    monthly
+    rotate 6
+    compress
+    delaycompress
+    missingok
+    notifempty
+}

debian/devdesk.postinst

@@ -13,6 +13,13 @@ configure)
     # Apply tmux.conf changes to a running server without restarting it.
     if [ -S /run/devdesk/tmux.sock ]; then
         tmux -N -S /run/devdesk/tmux.sock source-file /usr/share/devdesk/tmux.conf >/dev/null 2>&1 || true
+        # Before 0.3.1 every upgrade appended another copy of DevDesk's
+        # terminal-features entry; tmux.conf now sets index 90. Drop the copies.
+        tmux -N -S /run/devdesk/tmux.sock show -s terminal-features 2>/dev/null |
+            awk '$2 == "xterm-256color:RGB" && $1 != "terminal-features[90]" { print $1 }' |
+            while read -r opt; do
+                tmux -N -S /run/devdesk/tmux.sock set -su "$opt" >/dev/null 2>&1 || true
+            done
     fi
     ;;
 esac