feat: add generated scene skill platform hardening

tests/scene_generator_html_test.rs

@@ -12,19 +12,40 @@ fn scene_generator_html_exists_and_has_required_elements() {
     let source = fs::read_to_string(&html_path)
         .unwrap_or_else(|err| panic!("HTML file not found at {:?}: {}", html_path, err));
 
-    assert!(source.contains("场景 Skill 生成器"), "missing title");
+    assert!(
+        source.contains("Scene Skill Generator") || source.contains("Skill Generator"),
+        "missing title"
+    );
     assert!(source.contains("sourceDir"), "missing sourceDir input");
     assert!(source.contains("sceneId"), "missing sceneId input");
     assert!(source.contains("sceneName"), "missing sceneName input");
+    assert!(
+        source.contains("workflowArchetypeOverride"),
+        "missing workflow archetype override control"
+    );
+    assert!(source.contains("previewSceneId"), "missing sceneId preview");
+    assert!(
+        source.contains("previewSceneIdSource"),
+        "missing sceneId source preview"
+    );
+    assert!(
+        source.contains("previewSceneIdValidation"),
+        "missing sceneId validation preview"
+    );
+    assert!(
+        !source.contains("settingLessons"),
+        "lessons input should be removed from default UI"
+    );
+    assert!(
+        !source.contains("browseLessons"),
+        "lessons browse action should be removed from default UI"
+    );
     assert!(source.contains("/analyze"), "missing /analyze endpoint");
     assert!(source.contains("/generate"), "missing /generate endpoint");
-    assert!(
-        source.contains("fetch("),
-        "missing fetch for API calls"
-    );
-
+    assert!(source.contains("fetch("), "missing fetch for API calls");
     assert!(
         source.contains("127.0.0.1") || source.contains("localhost"),
         "should reference localhost server"
     );
+    assert!(source.contains("readiness"), "missing readiness UI");
 }