feat(api): 添加多媒体内容支持并优化钱包计费系统

- 在 API 接口定义中为 video_url 和 audio_url 类型添加 mime_type 字段
- 实现 Google Gemini 客户端对视频和音频内容的支持，包括媒体类型检测和数据传输
- 添加 Gemini 客户端测试用例验证多媒体内容转换功能
- 重构 Playground 页面的媒体上传逻辑以支持 MIME 类型传递
- 实现钱包计费预留机制，确保任务执行前余额充足
- 添加钱包冻结余额管理，防止并发操作导致的超扣问题
- 实现计费预留释放逻辑，处理任务失败或取消情况下的资金返还
- 优化数据库事务处理，确保计费操作的原子性和一致性
- 添加数据库集成测试验证迁移脚本执行流程
- 统一 Google Gemini 相关模型提供商标识符映射

apps/web/src/api.ts

@@ -684,11 +684,13 @@ export interface VideoGenerationContent {
   };
   video_url?: {
     url: string;
+    mime_type?: string;
     refer_type?: 'feature' | 'base';
     keep_original_sound?: 'yes' | 'no';
   };
   audio_url?: {
     url: string;
+    mime_type?: string;
   };
   role?: VideoGenerationContentRole;
   shot_index?: number;

apps/web/src/pages/playground-upload.tsx

@@ -32,8 +32,8 @@ export interface PlaygroundUpload {
 export type OpenAIChatContentPart =
   | { type: 'text'; text: string }
   | { type: 'image_url'; image_url: { url: string } }
-  | { type: 'video_url'; video_url: { url: string } }
-  | { type: 'audio_url'; audio_url: { url: string } }
+  | { type: 'video_url'; video_url: { mime_type?: string; url: string } }
+  | { type: 'audio_url'; audio_url: { mime_type?: string; url: string } }
   | { type: 'file_url'; file_url: { filename: string; url: string } };
 
 export const mediaUploadAccept = 'image/*,video/*,audio/*';
@@ -518,11 +518,17 @@ export function openAIContentFromPromptAndUploads(prompt: string, uploads: Playg
 function openAIContentPartFromUpload(item: PlaygroundUpload): OpenAIChatContentPart | undefined {
   if (!item.url) return undefined;
   if (item.kind === 'image') return { type: 'image_url', image_url: { url: item.url } };
-  if (item.kind === 'video') return { type: 'video_url', video_url: { url: item.url } };
-  if (item.kind === 'audio') return { type: 'audio_url', audio_url: { url: item.url } };
+  if (item.kind === 'video') return { type: 'video_url', video_url: mediaURLPayload(item) };
+  if (item.kind === 'audio') return { type: 'audio_url', audio_url: mediaURLPayload(item) };
   return { type: 'file_url', file_url: { filename: item.name, url: item.url } };
 }
 
+function mediaURLPayload(item: PlaygroundUpload) {
+  const payload: { mime_type?: string; url: string } = { url: item.url };
+  if (item.contentType) payload.mime_type = item.contentType;
+  return payload;
+}
+
 export function mediaUploadRequestPayload(uploads: PlaygroundUpload[], mode: Exclude<PlaygroundMode, 'chat'>) {
   const images = uploads.filter((item) => item.kind === 'image').map((item) => item.url);
   const payload: Record<string, string | string[]> = {};
@@ -570,10 +576,10 @@ function videoGenerationContentFromUpload(item: PlaygroundUpload): VideoGenerati
     return { type: 'image_url', role: 'reference_image', image_url: { url: item.url } };
   }
   if (item.kind === 'video') {
-    return { type: 'video_url', role: 'reference_video', video_url: { url: item.url, refer_type: 'feature' } };
+    return { type: 'video_url', role: 'reference_video', video_url: { ...mediaURLPayload(item), refer_type: 'feature' } };
   }
   if (item.kind === 'audio') {
-    return { type: 'audio_url', role: 'reference_audio', audio_url: { url: item.url } };
+    return { type: 'audio_url', role: 'reference_audio', audio_url: mediaURLPayload(item) };
   }
   return undefined;
 }