로깅 설정 추가 및 실행 프로파일 수정

- application.yml에 로그 파일 Rolling 설정 추가
- .run 폴더를 Git 추적에 포함하도록 .gitignore 수정
- logs 디렉토리는 Git에서 제외
- IntelliJ 실행 프로파일 구조 개선

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

participation-service/src/main/resources/application.yml

@@ -0,0 +1,59 @@
+spring:
+  application:
+    name: participation-service
+
+  # 데이터베이스 설정
+  datasource:
+    url: jdbc:postgresql://${DB_HOST:4.230.72.147}:${DB_PORT:5432}/${DB_NAME:participationdb}
+    username: ${DB_USERNAME:eventuser}
+    password: ${DB_PASSWORD:Hi5Jessica!}
+    driver-class-name: org.postgresql.Driver
+    hikari:
+      maximum-pool-size: 10
+      minimum-idle: 5
+      connection-timeout: 30000
+      idle-timeout: 600000
+      max-lifetime: 1800000
+
+  # JPA 설정
+  jpa:
+    hibernate:
+      ddl-auto: ${DDL_AUTO:update}
+    show-sql: ${SHOW_SQL:true}
+    properties:
+      hibernate:
+        format_sql: true
+        dialect: org.hibernate.dialect.PostgreSQLDialect
+        default_batch_fetch_size: 100
+
+  # Kafka 설정
+  kafka:
+    bootstrap-servers: ${KAFKA_BOOTSTRAP_SERVERS:4.230.50.63:9092}
+    producer:
+      key-serializer: org.apache.kafka.common.serialization.StringSerializer
+      value-serializer: org.springframework.kafka.support.serializer.JsonSerializer
+      acks: all
+      retries: 3
+
+# JWT 설정
+jwt:
+  secret: ${JWT_SECRET:kt-event-marketing-secret-key-for-development-only-change-in-production}
+  expiration: ${JWT_EXPIRATION:86400000}
+
+# 서버 설정
+server:
+  port: ${SERVER_PORT:8084}
+
+# 로깅 설정
+logging:
+  level:
+    com.kt.event.participation: ${LOG_LEVEL:INFO}
+    org.hibernate.SQL: DEBUG
+    org.hibernate.type.descriptor.sql.BasicBinder: TRACE
+  file:
+    name: ${LOG_FILE:logs/participation-service.log}
+  logback:
+    rollingpolicy:
+      max-file-size: 10MB
+      max-history: 7
+      total-size-cap: 100MB