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/routes/+page.svelte

@@ -1,7 +1,6 @@
 <script lang="ts">
   import { onMount } from 'svelte';
   import { resolve } from '$app/paths';
-  import type { Component } from 'svelte';
 
   import { appInitApi } from '$features/app/init.svelte';
   import { Spinner } from '@cio/ui/base/spinner';
@@ -9,24 +8,19 @@
   import FrownIcon from '@lucide/svelte/icons/frown';
   import { Empty } from '@cio/ui/custom/empty';
   import { SimpleLogoNav } from '@cio/ui/custom/simple-logo-nav';
-  import {
-    buildOrgLandingPageProps,
-    importThemeComponent,
-    normalizeLandingPageSettings
-  } from '$features/org/utils/landing-page';
+  import { buildOrgLandingPageProps, normalizeLandingPageSettings } from '$features/org/utils/landing-page';
   import { basePath } from '$lib/utils/store/app';
   import { t } from '$lib/utils/functions/translations';
   import { user } from '$lib/utils/store/user';
 
   let { data } = $props();
 
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  let ThemeComponent = $state<Component<any> | null>(null);
-
   const hasSetupError = $derived(!appInitApi.loading && !!appInitApi.error);
 
   const pageTitle = $derived(
-    data.isOrgSite && data.org ? data.org.name : "ClassroomIO - The Course Platform That's Actually Easy To Use"
+    data.isOrgSite && data.org
+      ? data.org.name
+      : 'ClassroomIO - The Most Customizable Platform for Customer, Partner, and Employee Education'
   );
 
   const authAction = $derived(
@@ -53,7 +47,7 @@
     );
   });
 
-  onMount(async () => {
+  onMount(() => {
     if (!data.isOrgSite || !data.org) {
       if (!appInitApi.loading) {
         appInitApi.setupApp(data.locals, {
@@ -61,13 +55,7 @@
           orgSiteName: data.orgSiteName
         });
       }
-
-      return;
     }
-
-    const settings = normalizeLandingPageSettings(data.org.landingpage);
-    const mod = await importThemeComponent(settings.theme);
-    ThemeComponent = mod.default;
   });
 </script>
 
@@ -76,10 +64,8 @@
 </svelte:head>
 
 {#if data.isOrgSite && data.org}
-  {#if ThemeComponent && landingPageProps}
-    <ThemeComponent {...landingPageProps} />
-  {:else}
-    <!-- Theme loading -->
+  {#if data.ThemeComponent && landingPageProps}
+    <svelte:component this={data.ThemeComponent} {...landingPageProps} />
   {/if}
 {:else if hasSetupError}
   <Empty