implement better-auth auth with postgres and route protection

docker-compose.override.yml

@@ -2,3 +2,28 @@ services:
   app:
     ports:
       - '${APP_PORT:-3000}:3000'
+    depends_on:
+      postgres:
+        condition: service_healthy
+    environment:
+      DATABASE_URL: ${DATABASE_URL:-postgres://postgres:postgres@postgres:5432/fiscal_clone}
+      BETTER_AUTH_BASE_URL: ${BETTER_AUTH_BASE_URL:-http://localhost:3000}
+      BETTER_AUTH_TRUSTED_ORIGINS: ${BETTER_AUTH_TRUSTED_ORIGINS:-http://localhost:3000}
+
+  postgres:
+    image: postgres:16-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: fiscal_clone
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ['CMD-SHELL', 'pg_isready -U postgres -d fiscal_clone']
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  postgres_data: