refactor(backend): 更新 agent 服务和配置层

backend/src/core/config/settings.py

@@ -160,10 +160,6 @@ class AgentRuntimeSettings(BaseModel):
     user_context_cache_prefix: str = "agent:user-context"
     user_context_cache_ttl_seconds: int = Field(default=600, ge=60, le=86400)
     user_context_cache_max_turns: int = Field(default=6, ge=1, le=100)
-    history_context_cache_prefix: str = "agent:history-context"
-    history_context_cache_ttl_seconds: int = Field(default=86400, ge=60, le=172800)
-    default_model_code: str = ""
-    streaming_enabled: bool = True
 
 
 class LlmSettings(BaseModel):

backend/src/core/config/static/database/system_agents.yaml

@@ -1,16 +1,27 @@
 agents:
-    - agent_type: router
+    - agent_type: worker
+      llm_model_code: qwen3.5-35b-a3b
+      status: active
+      config:
+          temperature: 0.7
+          max_tokens: null
+          timeout_seconds: 30
+          context_messages:
+              mode: number
+              count: 20
+          enabled_tool_groups:
+              - read
+              - write
+
+    - agent_type: memory
       llm_model_code: qwen3.5-flash
       status: active
       config:
           temperature: 0.7
           max_tokens: null
           timeout_seconds: 30
-
-    - agent_type: worker
-      llm_model_code: deepseek-chat
-      status: active
-      config:
-          temperature: 0.7
-          max_tokens: null
-          timeout_seconds: 30
+          context_messages:
+              mode: day
+              count: 2
+          enabled_tool_groups:
+              - read

backend/src/core/config/static/route/frontend_routes.yaml

@@ -74,11 +74,37 @@ routes:
     auth_required: true
     path_params:
       - id
+  - route_id: calendar.event_create
+    path: /calendar/events/new
+    description: Create page for one calendar event.
+    category: calendar
+    auth_required: true
+    query_params:
+      - date
+  - route_id: calendar.event_edit
+    path: /calendar/events/{id}/edit
+    description: Edit page for one calendar event.
+    category: calendar
+    auth_required: true
+    path_params:
+      - id
+  - route_id: calendar.event_share
+    path: /calendar/events/{id}/share
+    description: Share settings page for one calendar event.
+    category: calendar
+    auth_required: true
+    path_params:
+      - id
   - route_id: todo.list
     path: /todo
     description: Todo quadrants and backlog overview.
     category: todo
     auth_required: true
+  - route_id: todo.create
+    path: /todo/new
+    description: Create page for one todo item.
+    category: todo
+    auth_required: true
   - route_id: todo.detail
     path: /todo/{id}
     description: Detail page for one todo item.
@@ -86,6 +112,13 @@ routes:
     auth_required: true
     path_params:
       - id
+  - route_id: todo.edit
+    path: /todo/{id}/edit
+    description: Dedicated subpage for editing one todo item (not an in-page modal).
+    category: todo
+    auth_required: true
+    path_params:
+      - id
   - route_id: settings.main
     path: /settings
     description: Settings hub page.