update manualStatus field to be nullable

src/permit/permit.schema.ts

@@ -130,6 +130,7 @@ const listPermitResponse = z.object({
 const updatePermitInput = z.object({
   manualStatus: z
     .enum(["Ready To Issue", "Issued", "Invoiced", "Paid", "Closed"])
+    .nullable()
     .optional(),
   assignedTo: z.string().optional(),
 });