```

feat: 添加飞书用户模块和订阅功能支持

- 新增feishu_users模块用于处理飞书用户身份验证和权限管理
- 新增subscriptions模块用于处理订阅相关功能
- 新增personalization模块用于个性化服务
- 在alembic迁移配置中注册新的模型模块
- 在API路由器中添加feishu_users和subscriptions路由
- 实现事件调度服务的改进，包括错误处理和状态更新优化
- 添加飞书命令处理的权限检查机制
- 实现飞书应用票据事件处理
- 改进审计日志记录功能
```

app/modules/personalization/constants.py

@@ -0,0 +1,101 @@
+from enum import StrEnum
+
+
+class PreferenceCategory(StrEnum):
+    LANGUAGE = "language"
+    TONE = "tone"
+    DETAIL = "detail"
+    TOPIC = "topic"
+    INTEREST = "interest"
+
+
+class PreferenceSource(StrEnum):
+    EXPLICIT = "explicit"
+    AUTO = "auto"
+
+
+class ConversationRole(StrEnum):
+    USER = "user"
+    ASSISTANT = "assistant"
+
+
+class ConversationChatType(StrEnum):
+    PRIVATE = "private"
+    GROUP = "group"
+
+
+class PersonalizationContextKey(StrEnum):
+    SYSTEM_CONSTRAINTS = "system_constraints"
+    COMPANY_RULES = "company_rules"
+    PERSONAL_RULES = "personal_rules"
+    CURRENT_REQUEST = "current_request"
+    PREFERENCES = "preferences"
+    INTERESTS = "interests"
+    PERSONAL_MEMORY = "personal_memory"
+    CONVERSATION_HISTORY = "conversation_history"
+
+
+PREFERENCE_CODE_PREFIX = "PREF"
+CONVERSATION_CODE_PREFIX = "CONV"
+PREFERENCE_MAX_VALUE_LENGTH = 1000
+CONVERSATION_MAX_CONTENT_LENGTH = 20_000
+CONVERSATION_RETENTION_DAYS = 30
+CONVERSATION_MAX_TURNS = 20
+CONVERSATION_MAX_MESSAGES = CONVERSATION_MAX_TURNS * 2
+ERASURE_CONFIRMATION_TTL_MINUTES = 10
+
+UNAVAILABLE_AI_PROVIDERS = frozenset({"", "noop"})
+PREFERENCE_SIGNAL_TERMS = (
+    "以后",
+    "记住",
+    "偏好",
+    "喜欢",
+    "希望",
+    "请用",
+    "请保持",
+    "关注",
+    "感兴趣",
+    "prefer",
+    "preference",
+    "i like",
+    "interested in",
+)
+
+# These terms identify categories that must never become an inferred personal profile.
+# General topics such as public market news remain allowed; the financial terms below are
+# intentionally limited to private account, compensation, and confidential-company facts.
+SENSITIVE_PREFERENCE_TERMS = (
+    "api key",
+    "api_key",
+    "access token",
+    "access_token",
+    "password",
+    "secret",
+    "token",
+    "密码",
+    "密钥",
+    "令牌",
+    "健康",
+    "病史",
+    "疾病",
+    "诊断",
+    "医疗记录",
+    "宗教",
+    "信仰",
+    "政治立场",
+    "党派",
+    "选举倾向",
+    "性取向",
+    "同性恋",
+    "异性恋",
+    "绩效",
+    "考核结果",
+    "银行账号",
+    "银行卡",
+    "工资",
+    "薪资",
+    "个人收入",
+    "财务秘密",
+    "未公开财务",
+    "保密预算",
+)