```

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/ai_agent/constants.py

@@ -60,6 +60,14 @@ class AIContextKey(StrEnum):
     REQUEST_CONTEXT = "request_context"
     ASSISTANT_ANSWER = "assistant_answer"
     USER_RULES = "user_rules"
+    COMPANY_RULES = "company_rules"
+    PERSONAL_RULES = "personal_rules"
+    PREFERENCES = "preferences"
+    INTERESTS = "interests"
+    CONVERSATION_HISTORY = "conversation_history"
+    PROVIDER_SESSION_ID = "provider_session_id"
+    ALLOW_PROVIDER_MEMORY = "allow_provider_memory"
+    EXECUTION_MODE = "execution_mode"
 
 
 class AIMemoryMode(StrEnum):
@@ -67,6 +75,14 @@ class AIMemoryMode(StrEnum):
     WRITE = "memory_write"
 
 
+class AIExecutionMode(StrEnum):
+    INTERNAL = "internal"
+    PERSONALIZED = "personalized"
+    PREFERENCE_EXTRACTION = "preference_extraction"
+    SCHEDULED_PRIVATE = "scheduled_private"
+    SCHEDULED_GROUP = "scheduled_group"
+
+
 class AIHttpPath(StrEnum):
     CHAT_COMPLETIONS = "/chat/completions"
     HEALTH = "/health"
@@ -95,13 +111,6 @@ class AIHttpPayloadKey(StrEnum):
     MESSAGE = "message"
 
 
-class AIToolAuditKey(StrEnum):
-    TOOL = "tool"
-    ACTION = "action"
-    ARGS = "args"
-    SESSION_KEY = "session_key"
-
-
 class AIChatRole(StrEnum):
     SYSTEM = "system"
     USER = "user"
@@ -133,16 +142,25 @@ CHAT_USER_CONTENT_TEMPLATE = "Context:\n{context}\n\nTask:\n{task}"
 AUTHORIZATION_BEARER_TEMPLATE = "Bearer {token}"
 NOOP_PROVIDER_ANSWER = (
     "AI provider is not configured yet. This is a deterministic placeholder. "
-    "Set MODEL_PROVIDER to openclaw_hermes, openclaw, hermes, or direct_llm "
-    "after credentials are ready."
+    "Set MODEL_PROVIDER to openclaw_hermes, hermes, or direct_llm after "
+    "credentials are ready."
+)
+AI_UNAVAILABLE_ANSWER = "AI 当前不可用，请稍后重试。"
+PREFERENCE_EXTRACTION_INSTRUCTIONS = (
+    "Extract only durable user communication preferences from the supplied user text. "
+    "Allowed categories are language, tone, detail, topic, and interest. "
+    "Return strict JSON only in this shape: "
+    '{"preferences":[{"category":"language","value":"中文"}]}. '
+    "Return an empty preferences list when there is no durable preference. "
+    "Never return secrets, credentials, health, religion, politics, sexual orientation, "
+    "performance, compensation, or confidential financial information."
 )
 OPENCLAW_TOOL_COMPLETED_ANSWER = "OpenClaw tool invocation completed."
 DIRECT_LLM_API_KEY_MISSING = "DIRECT_LLM_API_KEY is not configured"
 UNEXPECTED_HERMES_RESPONSE = "Unexpected chat completion response"
 OPENCLAW_CHAT_PROVIDER_REQUIRED = (
-    "OpenClaw Gateway is not configured as a chat provider. "
-    "Provide context.openclaw_tool for /tools/invoke, or use "
-    "MODEL_PROVIDER=hermes/openclaw_hermes for AI answers."
+    "OpenClaw Gateway is not exposed as a tool-execution provider. "
+    "Use MODEL_PROVIDER=hermes, openclaw_hermes, or direct_llm for AI answers."
 )
 OPENCLAW_TOOL_NOT_ALLOWED = "OpenClaw tool is not allowed"
 OPENCLAW_ACTION_NOT_ALLOWED = "OpenClaw action is not allowed"