refactor ai_auto_response into xiaoniu group bot

plugins/ai_auto_response/response_planner.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+from typing import Dict
+
+
+class ResponsePlanner:
+    def choose_reply_mode(self, trigger: Dict, flow_state: str) -> str:
+        if trigger.get("is_question"):
+            return "qa_with_context" if flow_state in {"engaged", "deep_engaged"} else "qa_fast"
+        if trigger.get("is_followup"):
+            return "qa_with_context"
+        if trigger.get("is_social_call"):
+            return "social_short"
+        if trigger.get("is_returning_member"):
+            return "social_short"
+        return "social_short" if flow_state in {"warming", "engaged"} else "refuse_or_skip"
+
+    def should_reply(self, trigger: Dict, flow_state: str, allow_proactive: bool) -> bool:
+        if trigger.get("should_respond"):
+            return True
+        if not allow_proactive:
+            return False
+        return flow_state in {"warming", "engaged", "deep_engaged"} and trigger.get("priority", 0) >= 0.35