feat(conversation): push topic chips after each assistant turn

- Extract maybe_send_topic_chips_ws for WS connect + pipeline reuse
- Default memoir stage to childhood when empty for chip bank lookup
- Resend suggestions after normal assistant reply (English/Chinese)

Co-authored-by: Cursor <cursoragent@cursor.com>

api/app/features/conversation/ws/pipeline.py

@@ -45,6 +45,8 @@ from app.features.conversation.ws.profile_collector import (
     get_filled_profile_fields,
     get_missing_profile_fields,
 )
+from app.features.conversation.ws.topic_chips_push import maybe_send_topic_chips_ws
+from app.features.memoir.state_service import get_or_create_state
 from app.features.memoir.background_runner import BackgroundTaskRunner
 from app.features.memoir.ingest_scheduler import MemoirIngestScheduler
 from app.features.user.models import User
@@ -1107,6 +1109,19 @@ async def process_user_message(
             if i < n - 1:
                 await asyncio.sleep(0.5)
 
+        if user is not None:
+            try:
+                fresh_memoir = await get_or_create_state(user.id, db)
+                await maybe_send_topic_chips_ws(
+                    conversation_id,
+                    user=user,
+                    memoir_state=fresh_memoir,
+                    reason="after_assistant_turn",
+                    language=user_language,
+                )
+            except Exception as chip_err:
+                logger.warning("after-turn topic chips skipped: {}", chip_err)
+
         if tts_urls:
             await store.attach_ai_tts_audio_urls(
                 conversation_id,