Fix MongoDB logging: Add null checks and ensure consistent log format

- Add null check for mongo_logs before insert_one in all endpoints
- Ensure log format matches expected structure:
- timestamp: datetime.utcnow() (stored as datetime in MongoDB)
- ts: int(time.time()) (integer timestamp)
- response_time_ms: float (response time in milliseconds)
- All fields match expected api_logs collection format

api/main.py

@@ -701,10 +701,13 @@ def inpaint_url(req: InpaintRequest, request: Request, _: None = Depends(bearer_
         }
         if error_msg:
             log_doc["error"] = error_msg
-        try:
-            mongo_logs.insert_one(log_doc)
-        except Exception as mongo_err:
-            log.error("Mongo log insert failed: %s", mongo_err)
+        if mongo_logs is not None:
+            try:
+                mongo_logs.insert_one(log_doc)
+            except Exception as mongo_err:
+                log.error("Mongo log insert failed: %s", mongo_err)
+        else:
+            log.warning("MongoDB not configured, skipping log insert")
 
 
 @app.post("/inpaint-multipart")
@@ -872,10 +875,13 @@ def inpaint_multipart(
         }
         if error_msg:
             log_doc["error"] = error_msg
-        try:
-            mongo_logs.insert_one(log_doc)
-        except Exception as mongo_err:
-            log.error("Mongo log insert failed: %s", mongo_err)
+        if mongo_logs is not None:
+            try:
+                mongo_logs.insert_one(log_doc)
+            except Exception as mongo_err:
+                log.error("Mongo log insert failed: %s", mongo_err)
+        else:
+            log.warning("MongoDB not configured, skipping log insert")
 
 
 @app.post("/remove-pink")
@@ -1014,10 +1020,13 @@ def remove_pink_segments(
         }
         if error_msg:
             log_doc["error"] = error_msg
-        try:
-            mongo_logs.insert_one(log_doc)
-        except Exception as mongo_err:
-            log.error("Mongo log insert failed: %s", mongo_err)
+        if mongo_logs is not None:
+            try:
+                mongo_logs.insert_one(log_doc)
+            except Exception as mongo_err:
+                log.error("Mongo log insert failed: %s", mongo_err)
+        else:
+            log.warning("MongoDB not configured, skipping log insert")
 
 
 @app.get("/download/{filename}")