fix: payment extra and payment hash

lnbits/core/crud.py

@@ -773,7 +773,7 @@ async def update_payment_extra(
 
     row: dict = await (conn or db).fetchone(
         f"""
-        SELECT payment_hash, extra from apipayments WHERE hash = :hash {amount_clause}
+        SELECT payment_hash, extra from apipayments WHERE payment_hash = :hash {amount_clause}
         """,
         {"hash": payment_hash},
     )

lnbits/db.py

@@ -650,6 +650,9 @@ def dict_to_model(_row: dict, model: type[TModel]) -> TModel:
         if issubclass(type_, BaseModel) and value:
             _dict[key] = dict_to_submodel(type_, value)
             continue
+        if type_ is dict and value:
+            _dict[key] = json.loads(value)
+            continue
         _dict[key] = value
         continue
     _model = model.construct(**_dict)