新增模板预览功能

reelforge/i18n/locales/en_US.json

@@ -76,6 +76,20 @@
     "template.modern": "Modern",
     "template.neon": "Neon",
     "template.custom_help": "💡 Custom: Place .html files in templates/ folder",
+    "template.preview_title": "🔍 Preview Template",
+    "template.preview_param_title": "Title",
+    "template.preview_param_text": "Text",
+    "template.preview_param_image": "Image Path",
+    "template.preview_param_width": "Width",
+    "template.preview_param_height": "Height",
+    "template.preview_default_title": "AI Changes Content Creation",
+    "template.preview_default_text": "Artificial intelligence is transforming the way we create content, making it easy for everyone to produce professional-grade videos.",
+    "template.preview_button": "🖼️ Generate Preview",
+    "template.preview_generating": "Generating template preview...",
+    "template.preview_success": "✅ Preview generated successfully!",
+    "template.preview_failed": "❌ Preview failed: {error}",
+    "template.preview_image_help": "Supports local path or URL",
+    "template.preview_caption": "Template Preview: {template}",
     
     "video.title": "🎬 Video Settings",
     "video.frames": "Scenes",