refactor: implement fetchall with generic type

sdgb-api/src/title/methods/has_uid/mod.rs

@@ -0,0 +1,21 @@
+use crate::title::methods::HasUid;
+
+#[crabtime::function]
+fn uid_get_impl(api_names: Vec<String>) {
+    for api_name in api_names {
+        crabtime::output!(
+            impl HasUid for crate::title::model::{{api_name}}Resp {
+                fn get_uid(&self) -> u32 {
+                    self.user_id
+                }
+            }
+        );
+    }
+}
+
+uid_get_impl!([
+    "GetUserDataApi",
+    "GetUserMusicApi",
+    "GetUserPreviewApi",
+    "GetUserRatingApi"
+]);