feat: modernize UI with Astro+Svelte and optimize Docker build

- Migrated frontend to Astro + Svelte 5 for cyberpunk aesthetic
- Switched to Bun for faster frontend builds
- Implemented multi-stage Docker build for smaller image size
- Refactored backend to serve static assets and proxy API requests
- Added recovery mode for manual file management

docker-compose.yml

@@ -1,7 +1,7 @@
 services:
   ta-organizer:
-    # build: .  <-- Uncomment to build locally
-    image: ghcr.io/salpertio/ta-organizerr:latest
+    build: .
+    # image: ghcr.io/salpertio/ta-organizerr:latest
     container_name: ta-organizer
     volumes:
       - ./source:/app/source
@@ -13,6 +13,8 @@ services:
     environment:
       - SCAN_INTERVAL=60
       - ALLOWED_IPS=127.0.0.1,192.168.1.0/24,10.0.0.0/8,172.16.0.0/12
+      - API_URL=http://host.docker.internal:8457/api # Update this if Tube Archivist is on a different IP/Port
+      - VIDEO_URL=http://host.docker.internal:8457/video/
       # - UI_USERNAME=admin
       # - UI_PASSWORD=password
       # env_file: .env