fix(acceptance): 完善跨版本验收状态收口

生产流量处于旧失败验收 Run 的 validation 状态时，允许新验收接管任意已验证的 Git 祖先 release，而非仅允许 release manifest 的直接 base；仍保留 Run 状态、镜像 digest、revision 与当前集群 release CAS 校验。\n\n允许 pending Run 在激活前异常时直接标记为 failed，避免验收工具在 CAS 或网络错误后遗留无法结束的 Run。新增祖先关系脚本测试及临时 PostgreSQL 集成验证。\n\n验证：Go 全量测试、go vet、临时 PostgreSQL 集成测试、bash -n、ShellCheck、manual-release-test。

apps/api/internal/store/acceptance.go

@@ -266,6 +266,11 @@ WHERE (
      id = $1::uuid
      AND status = 'running'
    )
+   OR (
+     id = $1::uuid
+     AND $2::text = 'failed'
+     AND status = 'pending'
+   )
    OR (
      id = $1::uuid
      AND $2::text = 'failed'

apps/api/internal/store/acceptance_integration_test.go

@@ -56,6 +56,11 @@ WHERE setting_key = $1`, SystemSettingGatewayTrafficMode)
 	if strings.Contains(string(encoded), token) {
 		t.Fatal("acceptance run response exposed the raw token")
 	}
+	if failed, err := db.FinishAcceptanceRun(ctx, FinishAcceptanceRunInput{
+		RunID: run.ID, Passed: false, FailureReason: "pre-activation gate failed",
+	}); err != nil || failed.Status != "failed" {
+		t.Fatalf("finish pending acceptance run after pre-activation failure=%+v err=%v", failed, err)
+	}
 	mode, err := db.ActivateAcceptanceRun(ctx, run.ID)
 	if err != nil {
 		t.Fatalf("activate acceptance run: %v", err)