test(acceptance): 验证厂商三类额度与优先路由

为 provider-burst 固定三平台并发、RPM、TPM 和优先级组合，使用稳定 token 用量的本地视频负载验证同级按容量分流及低优先级溢出。\n\n报告升级为 v2，强制校验三类额度峰值精确命中上限、不越界、队列回收、三 Worker 分发以及重复提交和回调安全。\n\n验证：\n- env -u AI_GATEWAY_TEST_DATABASE_URL go test ./... -count=1\n- go vet ./...\n- bash -n scripts/acceptance/provider-burst.sh scripts/acceptance/run-local-acceptance.sh\n- shellcheck -x scripts/acceptance/provider-burst.sh scripts/acceptance/run-local-acceptance.sh

apps/api/cmd/acceptance-load/main.go

@@ -279,7 +279,7 @@ func parseOptions() (options, error) {
 		return options{}, errors.New("requests must be between 0 and 10000")
 	}
 	switch opts.profile {
-	case "simulated-smoke", "simulated-all", "gemini-baseline", "gemini-multi-image", "gemini-large", "gemini-peak", "video-throughput", "video-capacity", "video-recovery",
+	case "simulated-smoke", "simulated-all", "gemini-baseline", "gemini-multi-image", "gemini-large", "gemini-peak", "video-throughput", "video-capacity", "video-provider-quota", "video-recovery",
 		"mixed-soak", "mixed-overload":
 		if opts.emulatorURL == "" {
 			return options{}, errors.New("AI_GATEWAY_ACCEPTANCE_EMULATOR_URL is required for simulated profiles")
@@ -371,6 +371,12 @@ func run(ctx context.Context, opts options) ([]phaseResult, error) {
 					requests = opts.requestCount
 				}
 				result = runVideo(ctx, client, opts, name, opts.shardRequestCount(requests), false, opts.emulatorFixtureURLs(), false, opts.shardIndex, opts.shardCount)
+			case "video-provider-quota":
+				requests := 24
+				if opts.requestCount > 0 {
+					requests = opts.requestCount
+				}
+				result = runVideo(ctx, client, opts, name, opts.shardRequestCount(requests), false, opts.emulatorFixtureURLs(), false, opts.shardIndex, opts.shardCount)
 			case "video-recovery":
 				result = runVideo(ctx, client, opts, name, opts.shardRequestCount(96), true, opts.emulatorFixtureURLs(), false, opts.shardIndex, opts.shardCount)
 			case "mixed-soak", "mixed-overload":
@@ -657,18 +663,21 @@ func runVideo(
 			if len(combo) > imageCount {
 				combo = combo[:imageCount]
 			}
-			if !realUpstream && logicalIndex%4 == 0 {
+			if !realUpstream && name != "video-provider-quota" && logicalIndex%4 == 0 {
 				combo[0] = imageURLs[12+(logicalIndex/4)%4]
 			}
 			content := make([]any, 0, len(combo)+1)
 			prompt := "多参考图生成连续运镜视频，保持人物、服装和场景一致"
+			if name == "video-provider-quota" {
+				prompt = "acceptance-provider-quota"
+			}
 			if longRun {
 				prompt += " acceptance-long-recovery"
 			}
 			if name == "video-capacity" {
 				prompt += " acceptance-capacity-ladder"
 			}
-			if !realUpstream && logicalIndex%4 == 0 {
+			if !realUpstream && name != "video-provider-quota" && logicalIndex%4 == 0 {
 				prompt += " acceptance-force-conversion"
 			}
 			content = append(content, map[string]any{"type": "text", "text": prompt})
@@ -716,7 +725,7 @@ func runVideo(
 			err = withOperation("video_submit", err)
 			mu.Lock()
 			latencies[index] = time.Since(requestStarted)
-			if !realUpstream && logicalIndex%4 == 0 {
+			if !realUpstream && name != "video-provider-quota" && logicalIndex%4 == 0 {
 				forcedConversions++
 			}
 			if err != nil {