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/keling_simulation_integration_test.go

@@ -33,12 +33,16 @@ func TestKeling30TurboSimulationFlow(t *testing.T) {
 	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()
 
@@ -192,7 +196,7 @@ WHERE username = $1`, username); err != nil {
 		"simulation":           true,
 		"simulationDurationMs": 5,
 		"prompt":               "The subject looks toward the camera",
-		"image":                "https://example.com/first.png",
+		"image":                server.URL + "/static/simulation/image.png",
 		"duration":             5,
 		"resolution":           "720p",
 		"audio":                true,