fix: afterAll cleanup robustness for verify-d2-upload-retry

- rmSync with maxRetries handles ENOTEMPTY from overlayfs WAL races
- try/catch catch: async retryJob IIFE may recreate files during cleanup
- CI container ephemeral, /tmp leftovers harmless

All 17 test files (220 tests) pass, svelte-check: 0 errors.

src/tests/verify-d2-upload-retry.test.ts

@@ -2,7 +2,7 @@ import { describe, it, expect, afterAll, vi } from 'vitest';
 import { join } from 'path';
 import { tmpdir } from 'os';
 import { rm, mkdir, writeFile } from 'fs/promises';
-import { existsSync } from 'fs';
+import { existsSync, rmSync } from 'fs';
 import Database from 'better-sqlite3';
 
 /**
@@ -27,8 +27,14 @@ const { getJob } = await import('$lib/server/db.js');
 const { POST } = await import('$lib/../routes/api/jobs/[id]/retry/+server.js');
 const { GET } = await import('$lib/../routes/api/jobs/+server.js');
 
-afterAll(async () => {
-	await rm(TEST_DATA_DIR, { recursive: true, force: true });
+afterAll(() => {
+	try {
+		// rmSync with maxRetries handles ENOTEMPTY/EBUSY from WAL/filesystem races
+		rmSync(TEST_DATA_DIR, { recursive: true, force: true, maxRetries: 3 });
+	} catch {
+		// Best-effort: retryJob's async IIFE may recreate files during cleanup.
+		// CI container is ephemeral — leftover /tmp files are harmless.
+	}
 });
 
 function makeEvent(jobId: string) {