feat(agent): migrate to native CrewAI tool loop and async resume enqueue

backend/src/core/config/settings.py

@@ -162,6 +162,8 @@ 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
 

backend/src/core/config/static/crewai/tools.yaml

@@ -0,0 +1,6 @@
+intent: []
+
+execution:
+  - back.create_calendar_event
+
+organization: []