diff --git a/apps/ai-game-creator-shell/src-tauri/src/assets.rs b/apps/ai-game-creator-shell/src-tauri/src/assets.rs
index 5b0538384..38e10f511 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/assets.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/assets.rs
@@ -2214,14 +2214,14 @@ mod tests {
         assert_eq!(uploaded_asset_kind("theme.mp3", "audio/mpeg"), "audio");
         assert_eq!(uploaded_asset_kind("intro.mp4", ""), "video");
         assert_eq!(uploaded_asset_kind("rules.md", "text/markdown"), "document");
-        assert_eq!(uploaded_asset_kind("ui-font.ttf", "font/ttf"), "document");
+        assert_eq!(uploaded_asset_kind("ui-font.ttf", "font/ttf"), "font");
         assert_eq!(uploaded_asset_kind("game.js", "text/javascript"), "code");
-        // 判不出内容类型 → 中性 `asset`（派生 `unclassified` → 「待归类」），不猜具体类型。
+        // 判不出内容类型 → `unknown`（派生 `unclassified` → 「待归类」），不猜具体类型。
         assert_eq!(
             uploaded_asset_kind("unknown.bin", "application/octet-stream"),
-            "asset"
+            "unknown"
         );
-        assert_eq!(uploaded_asset_kind("no-extension", ""), "asset");
+        assert_eq!(uploaded_asset_kind("no-extension", ""), "unknown");
         // 反查：正文里的"来源词"和"UI 默认值"都不得出现在返回值里。
         for (file_name, media_type) in [
             ("hero.png", "image/png"),
@@ -2233,8 +2233,11 @@ mod tests {
             assert_ne!(kind, "ui", "{file_name} 写回了非 canonical 的 `ui`");
             assert!(
                 shared_contracts::game_creation_app::GAME_CREATION_APP_CANONICAL_ASSET_KINDS
-                    .contains(&kind)
-                    || kind == "asset",
+                    .contains(&kind.as_str())
+                    || matches!(
+                        kind,
+                        GameCreationAppAssetKind::Font | GameCreationAppAssetKind::Unknown
+                    ),
                 "非 canonical kind: {kind}（{file_name}）"
             );
         }