커ë°gitignore적용

.gradle/buildOutputCleanup/cache.properties

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-#Thu Oct 23 17:51:21 KST 2025
-gradle.version=8.10

.vscode/settings.json

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-{
-  "liveServer.settings.port": 5501
-}

backing-service/docker-compose.yml

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+version: '3.8'
+
+services:
+  # PostgreSQL - Participation Service
+  postgres-participation:
+    image: postgres:15-alpine
+    container_name: participation-db
+    environment:
+      POSTGRES_DB: participation_db
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres-participation-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # Kafka
+  zookeeper:
+    image: confluentinc/cp-zookeeper:7.5.0
+    container_name: zookeeper
+    environment:
+      ZOOKEEPER_CLIENT_PORT: 2181
+      ZOOKEEPER_TICK_TIME: 2000
+    ports:
+      - "2181:2181"
+
+  kafka:
+    image: confluentinc/cp-kafka:7.5.0
+    container_name: kafka
+    depends_on:
+      - zookeeper
+    ports:
+      - "9092:9092"
+    environment:
+      KAFKA_BROKER_ID: 1
+      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
+      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
+      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
+    healthcheck:
+      test: ["CMD-SHELL", "kafka-broker-api-versions --bootstrap-server localhost:9092"]
+      interval: 10s
+      timeout: 10s
+      retries: 5
+
+volumes:
+  postgres-participation-data: