weight edit fixes

backend/src/app.ts

@@ -318,15 +318,6 @@ const weightSchema = z.object({
   recordedOn: dateStringSchema,
   notes: z.string().trim().max(280).optional().or(z.literal('')),
 });
-const weightEditWindowDays = 3;
-
-const getWeightEditEarliestDate = () => {
-  const earliestDate = new Date();
-  earliestDate.setDate(earliestDate.getDate() - (weightEditWindowDays - 1));
-  return earliestDate.toISOString().slice(0, 10);
-};
-
-const isWeightDateEditable = (recordedOn: string) => recordedOn >= getWeightEditEarliestDate();
 
 const vetVisitSchema = z.object({
   visitedOn: dateStringSchema,
@@ -4185,11 +4176,6 @@ app.put(
         return;
       }
 
-      if (!isWeightDateEditable(parsed.data.recordedOn)) {
-        res.status(409).json({ error: 'Weight entries can only be edited for the last 3 days.' });
-        return;
-      }
-
       const weight = await updateWeightForBird(
         req.params.weightId,
         req.params.birdId,