feat: 完成短剧项目空间与结构化资产创作闭环 (#38)

* feat(canvas): 短剧项目空间 - 建立项目章节与画布关联 MVP

* feat(canvas): 短剧项目空间 - 完善项目资产、镜头与流程闭环

Refs #30

* fix(deploy): 本地部署 - 修复前端构建并忽略本地 PostgreSQL 配置

* feat(*): 短剧项目空间 - 完成项目、章节、资产、角色与画布创作闭环

Refs #30

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Co-authored-by: ddCat <ddcat666@88.com>

backend/internal/handler/auth.go

@@ -623,7 +623,7 @@ func proxySystemRequest(c *gin.Context, svc *service.Service, user *model.User,
 		case model.ChannelInterfaceNewAPIVideo, model.ChannelInterfaceNewAPIChannel1, model.ChannelInterfaceNewAPIChannel2, model.ChannelInterfaceXAIVideo:
 			capability = "video"
 		}
-		order, err := svc.ReserveProxyBilling(user.ID, channel.ID, strings.TrimPrefix(modelName, "models/"), capability, c.GetHeader("X-Canvas-Scene"), c.GetHeader("X-Idempotency-Key"))
+		order, err := svc.ReserveProxyBilling(user.ID, channel.ID, strings.TrimPrefix(modelName, "models/"), capability, c.GetHeader("X-Canvas-Scene"), c.GetHeader("X-Idempotency-Key"), proxyRequestVideoSeconds(c.GetHeader("Content-Type"), body))
 		if err != nil {
 			failService(c, err)
 			return