Add Metal execution preferences

src/schema.rs

@@ -20,6 +20,11 @@ diesel::table! {
         min_p -> Nullable<Float>,
         seed -> Nullable<Text>,
         reasoning_mode -> Text,
+        cpu_threads -> Nullable<Integer>,
+        power_percent -> Nullable<Integer>,
+        prefill_chunk -> Nullable<Integer>,
+        quality -> Bool,
+        warm_weights -> Bool,
     }
 }