feat(outlook): 添加Outlook集成功能支持

添加完整的Outlook MCP集成，包括邮件和日历功能，通过AuthZ模式进行认证和权限管理，
支持邮箱连接、断开、状态检查和数据同步等功能。

fix(config): 统一配置文件路径从.nanobot到.beaver

将配置文件路径从/root/.nanobot统一更改为/root/.beaver，更新Dockerfile中的环境变量定义，
确保所有组件使用一致的配置目录结构。

feat(agent): 添加代理删除功能和助手身份提示

为代理注册表添加delete_agent方法，实现代理的动态删除功能；同时添加海狸助手身份提示，
确保AI助手在交互中保持一致的身份认知。

feat(engine): 增强引擎循环并添加意图决策快照

扩展AgentLoop类，添加intent_agent_decision参数用于意图驱动的代理决策，并在会话中记录
决策快照，便于后续分析和调试。

feat(authz): 扩展认证客户端功能

为AuthzClient添加设置权限、用户注册、后端注册和Outlook设置管理等新方法，增强系统
的认证和授权能力。

app-instance/backend/beaver/tasks/router.py

@@ -20,6 +20,7 @@ class MainAgentRouter:
         provider: Any | None = None,
         model: str | None = None,
         recent_messages: list[dict[str, Any]] | None = None,
+        intent_skill: str | None = None,
         thinking_enabled: bool | None = None,
         timeout_seconds: float = 8.0,
     ) -> MainAgentDecision:
@@ -31,8 +32,9 @@ class MainAgentRouter:
                     {
                         "role": "system",
                         "content": (
-                            "You route user messages for Beaver's internal Task mode. "
-                            "Return only compact JSON. Do not explain."
+                            "You are Beaver's Intent Agent. Your only job is to route the user's "
+                            "message to simple chat or internal Task mode. Return only compact JSON. "
+                            "Do not answer the user. Do not explain."
                         ),
                     },
                     {
@@ -41,6 +43,7 @@ class MainAgentRouter:
                             message=message,
                             active_task=active_task,
                             recent_messages=recent_messages or [],
+                            intent_skill=intent_skill,
                         ),
                     },
                 ],
@@ -63,19 +66,48 @@ class MainAgentRouter:
         short_title = _clean_short_title(payload.get("short_title") or payload.get("title"))
 
         if raw_action in {"continue_task", "continue", "task"}:
-            return MainAgentDecision(mode="task", reason=reason, short_title=short_title)
+            return MainAgentDecision(
+                mode="task",
+                reason=reason,
+                starts_new_task=active_task is None,
+                short_title=short_title,
+                action="continue_task" if active_task is not None else "create_task",
+            )
         if raw_action in {"new_task", "new"}:
-            return MainAgentDecision(mode="task", reason=reason, starts_new_task=True, short_title=short_title)
+            return MainAgentDecision(
+                mode="task",
+                reason=reason,
+                starts_new_task=True,
+                short_title=short_title,
+                action="create_task",
+            )
         if raw_action in {"close_task", "close", "done", "finish"}:
-            return MainAgentDecision(mode="simple", reason=reason, closes_task=active_task is not None, short_title=short_title)
+            return MainAgentDecision(
+                mode="simple",
+                reason=reason,
+                closes_task=active_task is not None,
+                short_title=short_title,
+                action="close_task",
+            )
         if raw_action in {"abandon_task", "abandon", "cancel_task"}:
-            return MainAgentDecision(mode="simple", reason=reason, abandons_task=active_task is not None, short_title=short_title)
-        return MainAgentDecision(mode="simple", reason=reason or "simple_chat", short_title=short_title)
+            return MainAgentDecision(
+                mode="simple",
+                reason=reason,
+                abandons_task=active_task is not None,
+                short_title=short_title,
+                action="abandon_task",
+            )
+        return MainAgentDecision(
+            mode="simple",
+            reason=reason or "simple_chat",
+            short_title=short_title,
+            action="simple_chat",
+        )
 
     def _fallback(self, *, active_task: TaskRecord | None, reason: str) -> MainAgentDecision:
         if active_task is not None:
-            return MainAgentDecision(mode="task", reason=reason)
-        return MainAgentDecision(mode="simple", reason=reason)
+            return MainAgentDecision(mode="task", reason=reason, action="continue_task")
+        return MainAgentDecision(mode="simple", reason=reason, action="simple_chat")
 
     @staticmethod
     def _prompt(
@@ -83,6 +115,7 @@ class MainAgentRouter:
         message: str,
         active_task: TaskRecord | None,
         recent_messages: list[dict[str, Any]],
+        intent_skill: str | None,
     ) -> str:
         active_task_payload = None
         if active_task is not None:
@@ -98,8 +131,14 @@ class MainAgentRouter:
             for item in recent_messages[-8:]
             if item.get("role") in {"user", "assistant"}
         ]
+        skill_section = (
+            f"Intent Agent skill guidance:\n{intent_skill.strip()}\n\n"
+            if intent_skill and intent_skill.strip()
+            else ""
+        )
         return (
             "Decide how to route the current user message.\n\n"
+            f"{skill_section}"
             "Actions:\n"
             "- simple_chat: no Task should be created or continued.\n"
             "- continue_task: keep the user in the active Task.\n"
@@ -113,6 +152,10 @@ class MainAgentRouter:
             "- Use new_task only when the user clearly asks to start a different task.\n"
             "- If there is no active Task, choose new_task only for work that requires execution, iteration, tools, files, "
             "implementation, validation, or multi-step completion. Otherwise choose simple_chat.\n"
+            "- Requests that need current, real-time, external, user-private, local-file, web, weather, price, news, "
+            "calendar, email, or system data require tools. Choose new_task for them because the Intent Agent has no tools.\n"
+            "- The Intent Agent must never answer tool-dependent requests itself or apologize for lacking tools. "
+            "It only routes the request so the main Task agent can use tools.\n"
             "- short_title must be 5-15 Chinese characters or a similarly short English phrase when a Task is involved.\n\n"
             "Return JSON only with keys: action, reason, short_title.\n\n"
             f"Active task:\n{json.dumps(active_task_payload, ensure_ascii=False)}\n\n"