fix: 补齐候选诊断环境与证据保护（09-06-release-gate-integrity）

client/tests/e2e/pc-finance-admin-visual-wave4.spec.ts

@@ -1,4 +1,4 @@
-import { mkdirSync } from "node:fs";
+import { mkdirSync, mkdtempSync } from "node:fs";
 import path from "node:path";
 import type { Page, Route } from "@playwright/test";
 
@@ -6,11 +6,10 @@ import { expect, test } from "./helpers/fixtures";
 
 test.use({ serviceWorkers: "block" });
 
-const outputDir = path.resolve(process.cwd(), "../output/playwright/pc-finance-admin-visual-wave4");
-const taskOutputDir = path.resolve(
-  process.cwd(),
-  "../output/playwright/07-18-small-team-internal-readiness",
-);
+const visualRoot = path.resolve(process.env.QA_VISUAL_OUTPUT_DIR?.trim() || path.join(process.cwd(), "../output/playwright"));
+mkdirSync(visualRoot, { recursive: true });
+const outputDir = mkdtempSync(path.join(visualRoot, "pc-finance-admin-visual-wave4-"));
+const taskOutputDir = path.join(outputDir, "internal-readiness");
 
 const visualUser = {
   identifier: "[email protected]",