responsiveness fix

backend/app/services/inbound_smtp.py

@@ -19,6 +19,7 @@ from app.services.human_handoff_service import (
     maybe_trigger_handoff,
     process_human_reply,
     resolve_handoff_from_inbound,
+    start_human_initiated_handoff,
 )
 from app.services.message_ids import canonical_message_id, message_id_fields
 from app.services.mime_parser import parse_mime
@@ -154,6 +155,23 @@ class InboundHandler:
                     references=parsed.get("references", []),
                 )
                 if handoff is None:
+                    started = await start_human_initiated_handoff(
+                        mongo_db,
+                        account_id=account_id,
+                        agent_email=recipient,
+                        parsed=parsed,
+                        body_text=body_text,
+                        body_html=body_html,
+                        raw_mime=raw_mime,
+                        delivery_key=delivery_key,
+                    )
+                    if started:
+                        logger.info(
+                            "handoff_initiated_from_human account_id=%s message_id=%s",
+                            account_id,
+                            internet_message_id,
+                        )
+                        continue
                     external_recipients.append(recipient)
                     continue
                 await process_human_reply(