feat: 添加 Scene VLM 阶段到 Pipeline Progress 显示

问题:
- Core API 新增 scene_vlm 阶段
- Studio 需要同步更新权重映射和显示名称

修复:
- 更新 WEIGHT_MAP，添加 scene_vlm (0.03)
- 调整 vlm_summary 权重从 0.04 到 0.03
- 更新 formatStageName 函数，添加 'Scene VLM' 显示名称

权重映射:
- processors: 0.30
- rule1_ingestion: 0.05
- face_tracing: 0.05
- face_dedup: 0.10
- tkg_nodes: 0.20
- tkg_edges: 0.15
- rule2_ingestion: 0.10
- vlm_summary: 0.03
- scene_vlm: 0.03
- moment_chunks: 0.01

影响:
- 文件处理流程显示 Scene VLM 阶段
- 深度扫描文件显示完整的处理进度
- 用户可以实时监控 Scene VLM 处理状态

测试:
✅ 编译通过 (npm run build)
✅ 阶段显示名称正确

src/store.ts

@@ -1010,7 +1010,8 @@ export async function loadPipelineStats(fileUuid: string, force = false): Promis
       tkg_nodes: 0.20,
       tkg_edges: 0.15,
       rule2_ingestion: 0.10,
-      vlm_summary: 0.04,
+      vlm_summary: 0.03,
+      scene_vlm: 0.03,
       moment_chunks: 0.01
     }
     

src/views/LibraryView.vue

@@ -1186,6 +1186,7 @@ function formatStageName(name: string): string {
     tkg_edges: 'TKG Edges',
     rule2_ingestion: 'Rule2 Ingestion',
     vlm_summary: 'VLM Summary',
+    scene_vlm: 'Scene VLM',
     moment_chunks: 'Moment Chunks'
   }
   return names[name] || name