fix(sessions): restore a session's colour, pin and image watcher after a restart

restoreMuxSessions() re-applied name, auto-clear, auto-compact, auto-resume, nice and the
flicker filter from state.json but not color, pinned/pinnedAt or imageWatcherEnabled, which
the reboot-restore path (reapplyPersistedSessionState) already restores. After a restart or
crash a surviving pane came back uncoloured, unpinned and with its image watcher off, and the
next persist wrote that over the saved values. Found by killing -9 a server with a coloured,
pinned shell session and restarting it.

src/web/public/gesture/gesture-codeman.js

@@ -2,7 +2,7 @@ var __defProp = Object.defineProperty;
 var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
 var __publicField = (obj, key, value) => __defNormalProp(obj, typeof key !== "symbol" ? key + "" : key, value);
 
-// node_modules/@mediapipe/tasks-vision/vision_bundle.mjs
+// ../wt-cli/node_modules/@mediapipe/tasks-vision/vision_bundle.mjs
 var t = "undefined" != typeof self ? self : {};
 function e() {
   throw Error("Invalid UTF8");

src/web/server.ts

@@ -3682,6 +3682,17 @@ export class WebServer extends EventEmitter {
               if (savedState.flickerFilterEnabled !== undefined) {
                 session.flickerFilterEnabled = savedState.flickerFilterEnabled;
               }
+              // Tab colour, pin and the image watcher are user-set and persisted like the settings
+              // above, but this path never read them back: after a restart every surviving pane came
+              // back uncoloured and unpinned with its image watcher off, and the next persist
+              // overwrote the saved values. `reapplyPersistedSessionState()` (the reboot-restore
+              // path) already restores all three. The watcher flag has to be set before
+              // `setupSessionListeners()` below, which reads it to decide whether to start one.
+              if (savedState.color) session.setColor(savedState.color);
+              if (savedState.pinned) session.restorePin(true, savedState.pinnedAt);
+              if (savedState.imageWatcherEnabled !== undefined) {
+                session.imageWatcherEnabled = savedState.imageWatcherEnabled;
+              }
               // Respawn controller (not supported for external-CLI sessions)
               if (!isExternalCliMode(session.mode) && savedState.respawnEnabled && savedState.respawnConfig) {
                 try {