Initial commit: Dostalgia — DOS game hub

- Go backend (single binary) with embedded Svelte frontend
- JSON-per-game storage (no database)
- .jsdos bundle creation on upload
- Dark phosphor-green theme (#33FF33)
- js-dos v8 emulator integration
- Sockdrive support for games >80MB
- IGDB placeholder for future artwork scraping
- Docker deployment ready

docker-compose.yml

@@ -0,0 +1,15 @@
+services:
+  dostalgia:
+    build: .
+    container_name: dostalgia
+    ports:
+      - "8765:8765"
+    volumes:
+      - ./data:/data
+    environment:
+      - DOSTALGIA_DATA=/data
+      - PORT=8765
+      # IGDB credentials (optional):
+      # - TWITCH_CLIENT_ID=your_client_id
+      # - TWITCH_CLIENT_SECRET=your_client_secret
+    restart: unless-stopped