feat: HLS streaming, transcripts, agent course generation & landing-page course previews (#663)

New features:
- HLS video encoding/streaming (hls routes, hls-encoder) and a media
  transcripts pipeline (transcripts route + media-transcript queries)
- AI assistant chat vs. run model: agent-course-generation worker/queue,
  run-monitor pane, chat-changes card, content ask-ai bar
- Per-theme course-page previews across org landing-page themes (bold,
  classic, corporate, editorial, etc.) with a shared course token/component set
- View-as-student mode and login-link / link-invite invite flows

Refactor:
- Extract packages/core consolidating config (env, storage, dashboard-url),
  services and utils previously duplicated under apps/api/src/config
- Remove legacy agent service modules (chat-tools, chat-context,
  context-window, document, fetch-url, lesson-content)
- Relax Cross-Origin-Resource-Policy to allow cross-origin media embedding
- Add format script to tenant-router so turbo run format covers it

apps/dashboard/src/lib/utils/services/userjot/index.ts

@@ -1,7 +1,6 @@
 import { dev } from '$app/environment';
 import { get } from 'svelte/store';
 import { globalStore } from '$lib/utils/store/app';
-import { licenseApi } from '$features/license/api/license.svelte';
 
 const USERJOT_APP_ID = 'cm4a6vcmp00jpmdb5n66rmkzz';
 
@@ -9,7 +8,6 @@ let isInitialized = false;
 
 function isWidgetAllowed(): boolean {
   if (dev) return false;
-  if (licenseApi.hasAccess('no-tracking')) return false;
   if (get(globalStore).isOrgSite) return false;
 
   return true;
@@ -44,7 +42,7 @@ export function initUserJot(): void {
   ensureSdkLoaded();
 
   window.uj.init(USERJOT_APP_ID, {
-    widget: true,
+    trigger: 'custom',
     position: 'right',
     theme: 'auto'
   });
@@ -75,3 +73,21 @@ export function identifyUserJotUser({ id, email, fullname, avatarUrl }: UserJotI
     avatar: avatarUrl ?? undefined
   });
 }
+
+export function clearUserJotUser(): void {
+  if (!isWidgetAllowed()) return;
+
+  ensureSdkLoaded();
+
+  window.uj.identify(null);
+}
+
+export type UserJotWidgetSection = 'feedback' | 'roadmap' | 'updates';
+
+export function showUserJotWidget(section: UserJotWidgetSection): void {
+  if (!isWidgetAllowed()) return;
+
+  ensureSdkLoaded();
+
+  window.uj.showWidget({ section });
+}