fix(deploy): resolve SQL timeouts, YAML drift, and orphaned tmux sessions

- lib.sh: update atomic_dump_yaml to sync with YAML on any active session status change; set reader timeouts to 60.0s
- create_session.sh: add exit trap cleanup_tmux_on_error to rollback spawned tmux sessions on initialization failures
- reconcile.sh, update_yaml_resumed.sh, status.sh, stop_session.sh: align SQLite connection timeout values to 60.0s

.agents/skills/multi-agent-mux-resume/scripts/update_yaml_resumed.sh

@@ -65,7 +65,7 @@ db_path = os.path.splitext(yaml_path)[0] + '.db'
 d = {}
 try:
     if os.path.exists(db_path):
-        conn = sqlite3.connect(db_path, timeout=10.0)
+        conn = sqlite3.connect(db_path, timeout=60.0)
         try:
             row = conn.execute('SELECT data FROM sessions WHERE name=?', (name,)).fetchone()
             if row: