🏓 Initial ServeSync demo build

- FastAPI backend with PostgreSQL + Redis
- 4 core features: Registration, Courts, Matchmaking, Tournament
- Double elimination tournament with bracket visualization
- ELO-based matchmaking (Stage 1 Open, Stage 2 Skill-Based)
- Real-time WebSocket updates
- TV Screen display for courts
- Vue 3 + Tailwind CSS frontend
- Seed data: 12 players, 4 courts, active matches, tournament in progress
- Docker compose stack with Nginx reverse proxy

docker-compose.yml

@@ -0,0 +1,49 @@
+version: '3.8'
+
+services:
+  db:
+    image: postgres:15-alpine
+    environment:
+      POSTGRES_DB: servesync
+      POSTGRES_USER: servesync
+      POSTGRES_PASSWORD: servesync
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U servesync"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  redis:
+    image: redis:7-alpine
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 3s
+      retries: 5
+
+  backend:
+    build: ./backend
+    environment:
+      DATABASE_URL: postgresql://servesync:servesync@db:5432/servesync
+      REDIS_URL: redis://redis:6379
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    restart: unless-stopped
+
+  frontend:
+    build: ./frontend
+    depends_on:
+      - backend
+    restart: unless-stopped
+
+  nginx:
+    build: ./nginx
+    ports:
+      - "8092:80"
+    depends_on:
+      - backend
+      - frontend
+    restart: unless-stopped