feat(acceptance): 建立同构验收与弹性容量体系

实现本地三节点 K3s 同构环境、脱敏生产快照、Gemini 图片和多参考图视频协议模拟、统一验收报告及故障注入。\n\n新增 Worker 容量控制器、资源与连接预算、任务恢复保护，并将生产验收拆分为 validation 执行和人工 CAS 放量。\n\n验证包括 Go 全量测试、PostgreSQL HTTP 集成测试、go vet、OpenAPI、ShellCheck、前端检查、迁移及发布脚本测试。

apps/api/internal/httpapi/kling_compat_integration_test.go

@@ -49,12 +49,16 @@ WHERE provider_key = 'keling'
 	serverCtx, cancelServer := context.WithCancel(ctx)
 	defer cancelServer()
 	server := httptest.NewServer(NewServerWithContext(serverCtx, config.Config{
-		AppEnv:            "test",
-		HTTPAddr:          ":0",
-		DatabaseURL:       databaseURL,
-		IdentityMode:      "hybrid",
-		JWTSecret:         "test-secret",
-		CORSAllowedOrigin: "*",
+		AppEnv:                            "test",
+		HTTPAddr:                          ":0",
+		DatabaseURL:                       databaseURL,
+		IdentityMode:                      "hybrid",
+		JWTSecret:                         "test-secret",
+		CORSAllowedOrigin:                 "*",
+		AsyncQueueWorkerEnabled:           true,
+		AsyncWorkerHardLimit:              32,
+		AsyncWorkerInstanceHardLimit:      32,
+		AsyncWorkerRefreshIntervalSeconds: 1,
 	}, db, slog.New(slog.NewTextHandler(io.Discard, nil))))
 	defer server.Close()
 
@@ -159,7 +163,7 @@ WHERE platform_id = $1::uuid
 
 	for _, model := range []string{klingO1Model, klingV3OmniModel} {
 		assertGenericVideoGeneration(model+"-text-to-video", model, "", "video_generate")
-		assertGenericVideoGeneration(model+"-image-to-video", model, "https://example.com/first.png", "image_to_video")
+		assertGenericVideoGeneration(model+"-image-to-video", model, server.URL+"/static/simulation/image.png", "image_to_video")
 	}
 
 	createV1 := func(model string, duration int, externalID string) string {