Added sanity check to clean up data

src/endpoints/handlers/bett.py

@@ -153,8 +153,13 @@ async def log_bed_weights():
             bl = r.get(f"{bett_ip}/sensor/bl/").json()["value"]
             br = r.get(f"{bett_ip}/sensor/br/").json()["value"]
 
+            # Sanity check
+            if min([tl, tr, bl, br]) <= 0:
+                continue
+
             add_weights_to_log(tl, tr, bl, br)
             check_for_change()
         except Exception as ex:
             logging.exception(ex)
-        await asyncio.sleep(1)
+        finally:
+            await asyncio.sleep(1)