Refactor: AI 서비스 Python 구현 및 디렉토리 구조 변경

- ai-python: FastAPI 기반 AI 서비스 구현
  - 실시간 회의 제안 기능 추가
  - Claude API 통합
  - EventHub 및 Redis 연동

- ai-java-back: 기존 Java AI 서비스 백업 디렉토리로 이동
  - Spring Boot 기반 구현 보존

- ai 디렉토리: Java 서비스 파일 삭제 처리

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

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

ai-java-back/bin/main/application.yml

@@ -0,0 +1,148 @@
+spring:
+  application:
+    name: ai
+
+  # Database Configuration
+  datasource:
+    url: jdbc:${DB_KIND:postgresql}://${DB_HOST:20.249.153.213}:${DB_PORT:5432}/${DB_NAME:aidb}
+    username: ${DB_USERNAME:hgzerouser}
+    password: ${DB_PASSWORD:Hi5Jessica!}
+    driver-class-name: org.postgresql.Driver
+    hikari:
+      maximum-pool-size: 20
+      minimum-idle: 5
+      connection-timeout: 30000
+      idle-timeout: 600000
+      max-lifetime: 1800000
+      leak-detection-threshold: 60000
+
+  # JPA Configuration
+  jpa:
+    show-sql: ${SHOW_SQL:true}
+    properties:
+      hibernate:
+        format_sql: true
+        use_sql_comments: true
+    hibernate:
+      ddl-auto: ${DDL_AUTO:update}
+
+  # Redis Configuration
+  data:
+    redis:
+      host: ${REDIS_HOST:20.249.177.114}
+      port: ${REDIS_PORT:6379}
+      password: ${REDIS_PASSWORD:Hi5Jessica!}
+      timeout: 2000ms
+      lettuce:
+        pool:
+          max-active: 8
+          max-idle: 8
+          min-idle: 0
+          max-wait: -1ms
+      database: ${REDIS_DATABASE:4}
+
+# Server Configuration
+server:
+  port: ${SERVER_PORT:8083}
+  servlet:
+    context-path: ${CONTEXT_PATH:}
+
+# JWT Configuration
+jwt:
+  secret: ${JWT_SECRET:dev-jwt-secret-key-for-development-only}
+  access-token-validity: ${JWT_ACCESS_TOKEN_VALIDITY:1800}
+  refresh-token-validity: ${JWT_REFRESH_TOKEN_VALIDITY:86400}
+
+# CORS Configuration
+cors:
+  allowed-origins: ${CORS_ALLOWED_ORIGINS:http://localhost:*}
+
+# Azure OpenAI Configuration
+azure:
+  openai:
+    api-key: ${AZURE_OPENAI_API_KEY:}
+    endpoint: ${AZURE_OPENAI_ENDPOINT:}
+    deployment-name: ${AZURE_OPENAI_DEPLOYMENT:gpt-4o}
+    embedding-deployment: ${AZURE_OPENAI_EMBEDDING_DEPLOYMENT:text-embedding-3-large}
+    max-tokens: ${AZURE_OPENAI_MAX_TOKENS:2000}
+    temperature: ${AZURE_OPENAI_TEMPERATURE:0.3}
+
+# External AI API Configuration  
+external:
+  ai:
+    claude:
+      api-key: ${CLAUDE_API_KEY:}
+      base-url: ${CLAUDE_BASE_URL:https://api.anthropic.com}
+    openai:
+      api-key: ${OPENAI_API_KEY:}
+      base-url: ${OPENAI_BASE_URL:https://api.openai.com}
+    openweather:
+      api-key: ${OPENWEATHER_API_KEY:}
+      base-url: ${OPENWEATHER_BASE_URL:https://api.openweathermap.org}
+    kakao:
+      api-key: ${KAKAO_API_KEY:}
+      base-url: ${KAKAO_BASE_URL:https://dapi.kakao.com}
+
+  # Azure AI Search Configuration
+  ai-search:
+    endpoint: ${AZURE_AI_SEARCH_ENDPOINT:}
+    api-key: ${AZURE_AI_SEARCH_API_KEY:}
+    index-name: ${AZURE_AI_SEARCH_INDEX:meeting-transcripts}
+
+  # Azure Event Hubs Configuration
+  eventhub:
+    connection-string: ${AZURE_EVENTHUB_CONNECTION_STRING:Endpoint=sb://hgzero-eventhub-ns.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=VUqZ9vFgu35E3c6RiUzoOGVUP8IZpFvlV+AEhC6sUpo=}
+    namespace: ${AZURE_EVENTHUB_NAMESPACE:hgzero-eventhub-ns}
+    eventhub-name: ${AZURE_EVENTHUB_NAME:hgzero-eventhub-name}
+    checkpoint-storage-connection-string: ${AZURE_CHECKPOINT_STORAGE_CONNECTION_STRING:}
+    checkpoint-container: ${AZURE_CHECKPOINT_CONTAINER:hgzero-checkpoints}
+    consumer-group:
+      transcript: ${AZURE_EVENTHUB_CONSUMER_GROUP_TRANSCRIPT:ai-transcript-group}
+      meeting: ${AZURE_EVENTHUB_CONSUMER_GROUP_MEETING:ai-meeting-group}
+
+# Actuator Configuration
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health,info,metrics,prometheus
+      base-path: /actuator
+  endpoint:
+    health:
+      show-details: always
+      show-components: always
+  health:
+    livenessState:
+      enabled: true
+    readinessState:
+      enabled: true
+
+# OpenAPI Documentation
+springdoc:
+  api-docs:
+    path: /v3/api-docs
+  swagger-ui:
+    path: /swagger-ui.html
+    tags-sorter: alpha
+    operations-sorter: alpha
+  show-actuator: false
+
+# Logging Configuration
+logging:
+  level:
+    root: ${LOG_LEVEL_ROOT:INFO}
+    com.unicorn.hgzero.ai: ${LOG_LEVEL_APP:DEBUG}
+    org.springframework.web: ${LOG_LEVEL_WEB:INFO}
+    org.springframework.security: ${LOG_LEVEL_SECURITY:DEBUG}
+    org.hibernate.SQL: ${LOG_LEVEL_SQL:DEBUG}
+    org.hibernate.type: ${LOG_LEVEL_SQL_TYPE:TRACE}
+  pattern:
+    console: "%d{yyyy-MM-dd HH:mm:ss} - %msg%n"
+    file: "%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n"
+  file:
+    name: ${LOG_FILE:logs/ai-service.log}
+  logback:
+    rollingpolicy:
+      max-file-size: ${LOG_MAX_FILE_SIZE:10MB}
+      max-history: ${LOG_MAX_HISTORY:7}
+      total-size-cap: ${LOG_TOTAL_SIZE_CAP:100MB}