Add ECDSA signature verification and enhance ComboHandler functionality

- Integrated ECDSA for signature verification in ComboHandler.
- Updated event emissions to include additional parameters for better tracking.
- Improved gas tracking during execution of combo plans.
- Enhanced database interactions for storing and retrieving plans, including conflict resolution and status updates.
- Added new dependencies for security and database management in orchestrator.

docker-compose.yml

@@ -0,0 +1,73 @@
+version: '3.8'
+
+services:
+  # PostgreSQL database
+  postgres:
+    image: postgres:15-alpine
+    environment:
+      POSTGRES_DB: comboflow
+      POSTGRES_USER: comboflow
+      POSTGRES_PASSWORD: comboflow
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U comboflow"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # Redis cache
+  redis:
+    image: redis:7-alpine
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 5
+
+  # Orchestrator service
+  orchestrator:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - "8080:8080"
+    environment:
+      NODE_ENV: production
+      PORT: 8080
+      DATABASE_URL: postgresql://comboflow:comboflow@postgres:5432/comboflow
+      REDIS_URL: redis://redis:6379
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:8080/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  # Frontend
+  webapp:
+    build:
+      context: ./webapp
+      dockerfile: Dockerfile
+    ports:
+      - "3000:3000"
+    environment:
+      NODE_ENV: production
+      NEXT_PUBLIC_ORCH_URL: http://orchestrator:8080
+    depends_on:
+      - orchestrator
+
+volumes:
+  postgres_data:
+  redis_data:
+