feat(monorepo): migrate prototype code to organized package structure

Migrate all prototype code from vjs10-prototype repository into the
monorepo structure following established dependency hierarchy and
package organization patterns.

Core packages migrated:
- @vjs-10/media-store: Complete media store with nanostores integration
- @vjs-10/playback-engine: HLS.js playback engine implementation
- @vjs-10/media: Core media state owner and interfaces

HTML packages migrated:
- @vjs-10/html-icons: Web component icons with proper base classes
- @vjs-10/html-media-elements: Context provider integration
- @vjs-10/html: Main HTML UI components, skins, and utilities

React packages migrated:
- @vjs-10/react-icons: React icon components
- @vjs-10/react-media-elements: Video component with state integration
- @vjs-10/react-media-store: MediaProvider and React hooks
- @vjs-10/react: Main React UI components and skins

Changes made:
- Updated all imports to use monorepo package names (@vjs-10/*)
- Distributed dependencies to specific packages that use them
- Preserved all prototype functionality and component structure
- Created proper index files for all packages
- Fixed workspace protocol usage for npm compatibility

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

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

packages/html/html-media-elements/package.json

@@ -22,8 +22,8 @@
   ],
   "license": "Apache-2.0",
   "dependencies": {
-    "@vjs-10/media": "*",
-    "@vjs-10/playback-engine": "*"
+    "@open-wc/context-protocol": "^0.0.9",
+    "@vjs-10/media-store": "*"
   },
   "devDependencies": {
     "typescript": "^5.3.0"