Fix prop confirmation bug, add Wan 2.7 model, refine multiple UI details, improve prop generation quality and aspect ratio, remove text overlays from Asset Center created images, and optimize prop filtering logic

messages/en/assetModal.json

@@ -55,8 +55,10 @@
         "title": "New Prop",
         "name": "Prop Name",
         "namePlaceholder": "Enter prop name",
-        "summary": "Prop Description",
-        "summaryPlaceholder": "Describe the prop..."
+        "summary": "Summary",
+        "summaryPlaceholder": "One-line human summary of the prop, without plot usage...",
+        "description": "Image Description",
+        "descriptionPlaceholder": "Describe only the prop itself: material, color, structure, and decoration..."
     },
     "artStyle": {
         "title": "Art Style"