feat(scope): router guard syncs + preserves ?bot across navigation

web/src/router/index.ts

@@ -1,5 +1,6 @@
 import { createRouter, createWebHistory } from 'vue-router';
 import { useSession } from '../composables/useSession.js';
+import { usePlayerStore } from '../stores/player.js';
 
 const router = createRouter({
   history: createWebHistory(),
@@ -56,6 +57,22 @@ router.beforeEach(async (to) => {
   if (!session.isAuthenticated.value) {
     return { name: 'login', query: { next: to.fullPath } };
   }
+
+  // Navigation is allowed to proceed to `to` past here (auth/setup redirects above take precedence).
+  // Sync + preserve the dedicated-link scope carried by ?bot.
+  const store = usePlayerStore();
+  const qBot = typeof to.query.bot === 'string' && to.query.bot ? to.query.bot : null;
+  if (qBot) {
+    // URL carries a scope — set tentatively; App.vue's applyScopeFromQuery (after fetchBots) validates/clears it.
+    store.scopedBotId = qBot;
+    return true;
+  }
+  if (store.scopedBotId) {
+    // scoped, but this navigation dropped ?bot → re-attach so the lock survives in-app nav + refresh.
+    if (to.query.bot !== store.scopedBotId) {
+      return { path: to.path, query: { ...to.query, bot: store.scopedBotId }, hash: to.hash };
+    }
+  }
   return true;
 });