Add manifest-based addon manager

static/js/settings.js

@@ -9,6 +9,7 @@ import { sortModelIds } from './modelSort.js';
 import { providerLogo } from './providers.js';
 import { isAltGrEvent } from './platform.js';
 import { bindMenuDismiss } from './escMenuStack.js';
+import addonsModule from './addons.js';
 
 let initialized = false;
 let modalEl = null;
@@ -41,6 +42,7 @@ function initTabs() {
       document.body.classList.toggle('settings-appearance-open', tab === 'appearance');
       syncAppearanceOpacity(tab === 'appearance');
       if (tab === 'ai') refreshAiModelEndpoints();
+      if (tab === 'addons') addonsModule.open();
     });
   });
 }
@@ -2322,6 +2324,7 @@ function initAll() {
   initClose();
   initOpenPromptModalLink();
   initOpacityToggle();
+  addonsModule.init();
   initialized = true;
   initDefaultChat();
   initTeacherModel();
@@ -5731,6 +5734,7 @@ export function open(tab) {
   document.body.classList.toggle('settings-appearance-open', activeTab === 'appearance');
   syncAppearanceOpacity(activeTab === 'appearance');
   if (activeTab === 'ai') refreshAiModelEndpoints();
+  if (activeTab === 'addons') addonsModule.open();
   if (ADMIN_TABS.has(activeTab) && window.adminModule && !window.adminModule._initialized) {
     window.adminModule._initData();
   }