feat: bootstrap temporserv project scaffold

Add the initial project blueprint, Go backend skeleton, frontend app shell, database schema draft, and local development/deployment files.

docker-compose.yml

@@ -0,0 +1,20 @@
+version: "3.9"
+
+services:
+  app:
+    build:
+      context: .
+      dockerfile: deploy/Dockerfile
+    ports:
+      - "4040:4040"
+    environment:
+      APP_ENV: production
+      SERVER_HOST: 0.0.0.0
+      SERVER_PORT: 4040
+      DATABASE_PATH: /app/data/app.db
+      MEDIA_ROOT: /music
+      CORS_ORIGINS: http://localhost:4040
+    volumes:
+      - ./data:/app/data
+      - ./media:/music
+