Enhance bootcamp with rich text editor, curriculum management, and video toggle

Phase 1: Rich Text Editor with Code Syntax Highlighting
- Add TipTap CodeBlock extension with lowlight for syntax highlighting
- Support multiple languages (JavaScript, TypeScript, Python, Java, C++, HTML, CSS, JSON)
- Add copy-to-clipboard button on code blocks
- Add line numbers display with CSS
- Replace textarea with RichTextEditor in CurriculumEditor
- Add DOMPurify sanitization in Bootcamp display
- Add dark theme syntax highlighting styles

Phase 2: Admin Curriculum Management Page
- Create dedicated ProductCurriculum page at /admin/products/:id/curriculum
- Three-column layout: Modules (3) | Lessons (5) | Editor (4)
- Full-page UX with drag-and-drop reordering
- Add "Manage Curriculum" button for bootcamp products in AdminProducts
- Breadcrumb navigation back to products

Phase 3: Product-Level Video Source Toggle
- Add youtube_url and embed_code columns to bootcamp_lessons table
- Add video_source and video_source_config columns to products table
- Update ProductCurriculum with separate YouTube URL and Embed Code fields
- Create smart VideoPlayer component in Bootcamp.tsx
- Support YouTube ↔ Embed switching with smart fallback
- Show "Konten tidak tersedia" warning when no video configured
- Maintain backward compatibility with existing video_url field

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

package.json

@@ -41,6 +41,7 @@
     "@radix-ui/react-tooltip": "^1.2.7",
     "@supabase/supabase-js": "^2.88.0",
     "@tanstack/react-query": "^5.83.0",
+    "@tiptap/extension-code-block-lowlight": "^3.14.0",
     "@tiptap/extension-image": "^3.13.0",
     "@tiptap/extension-link": "^3.13.0",
     "@tiptap/extension-placeholder": "^3.13.0",
@@ -55,8 +56,10 @@
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",
     "date-fns": "^3.6.0",
+    "dompurify": "^3.3.1",
     "embla-carousel-react": "^8.6.0",
     "input-otp": "^1.4.2",
+    "lowlight": "^3.3.0",
     "lucide-react": "^0.462.0",
     "next-themes": "^0.3.0",
     "qrcode.react": "^4.2.0",