fixed display of conversations and unique users in UI

main.py

@@ -1101,7 +1101,9 @@ async def get_agent_usage(
                 total_usage_count=agent.get("total_messages", 0),
                 first_usage=agent.get("first_used"),
                 last_usage=agent.get("last_used"),
-                usage_by_period=usage_by_period
+                usage_by_period=usage_by_period,
+                conversation_count=agent.get("conversation_count"),
+                unique_users=agent.get("unique_users")
             )
         else:
             # FALLBACK TO CALCULATED DATA (old system)
@@ -1124,7 +1126,9 @@ async def get_agent_usage(
                 total_usage_count=stats["total_usage_count"],
                 first_usage=stats["first_usage"].isoformat() if stats["first_usage"] else None,
                 last_usage=stats["last_usage"].isoformat() if stats["last_usage"] else None,
-                usage_by_period=usage_by_period
+                usage_by_period=usage_by_period,
+                conversation_count=None,  # Old system doesn't track this
+                unique_users=None  # Old system doesn't track this
             )
     except HTTPException:
         raise

models.py

@@ -168,4 +168,6 @@ class AgentUsageStatsResponse(BaseModel):
     first_usage: Optional[str] = None
     last_usage: Optional[str] = None
     usage_by_period: dict
+    conversation_count: Optional[int] = None
+    unique_users: Optional[int] = None