style: apply prettier and prefer-const on watch shutdown tests (#3121)

Keep CI autofix from re-flagging the same files after the teardown fix.

Co-authored-by: Cursor <cursoragent@cursor.com>

gitnexus/src/cli/watch.ts

@@ -241,10 +241,7 @@ export function shouldStopAfterWatchRefreshFailure(
   );
 }
 
-export function formatFatalWatchRefreshFailure(
-  error: unknown,
-  paths: readonly string[],
-): string {
+export function formatFatalWatchRefreshFailure(error: unknown, paths: readonly string[]): string {
   const detail = paths.length > 0 ? ` (${paths.length} queued path(s))` : '';
   const reason =
     error instanceof StreamedIncrementalWritebackError

gitnexus/test/unit/analyze-worker-core.test.ts

@@ -134,12 +134,16 @@ describe('runWorkerAnalysis — finalize guard (#2264 P2)', () => {
     });
     const finalize = vi.fn<WorkerAnalysisDeps['assertAnalysisFinalized']>(async () => undefined);
 
-    await runWorkerAnalysis('/repo', {}, {
-      runFullAnalysis: failingRun,
-      assertAnalysisFinalized: finalize,
-      send,
-      claimTerminal: alwaysClaim,
-    });
+    await runWorkerAnalysis(
+      '/repo',
+      {},
+      {
+        runFullAnalysis: failingRun,
+        assertAnalysisFinalized: finalize,
+        send,
+        claimTerminal: alwaysClaim,
+      },
+    );
 
     expect(send).toHaveBeenCalledTimes(1);
     expect(send).toHaveBeenCalledWith({

gitnexus/test/unit/streamed-incremental-writeback-orchestration.test.ts

@@ -163,9 +163,10 @@ describe('streamed incremental writeback orchestration', () => {
         thrown = error;
       }
 
-      expect(thrown, `${(thrown as Error)?.stack ?? String(thrown)}\n${logs.join('\n')}`).toBeInstanceOf(
-        StreamedIncrementalWritebackError,
-      );
+      expect(
+        thrown,
+        `${(thrown as Error)?.stack ?? String(thrown)}\n${logs.join('\n')}`,
+      ).toBeInstanceOf(StreamedIncrementalWritebackError);
       expect(analyzeFailureMayHaveMutatedLiveIndex(thrown)).toBe(false);
       expect(fixture.saveMeta).not.toHaveBeenCalled();
       expect(fixture.initLbug).not.toHaveBeenCalled();

gitnexus/test/unit/watch-loop-shutdown.test.ts

@@ -57,9 +57,7 @@ describe('watch loop fatal shutdown', () => {
   it('does not start another refresh while a slow watcher.close is in flight', async () => {
     const repo = await makeRepo();
     const refreshCalls: string[][] = [];
-    let loop!: WatchFileLoop;
-
-    loop = await startWatchFileLoop(
+    const loop: WatchFileLoop = await startWatchFileLoop(
       repo,
       10,
       async (paths) => {
@@ -75,12 +73,13 @@ describe('watch loop fatal shutdown', () => {
     loops.push(loop);
 
     expect(refreshCalls).toEqual([[]]);
-    lastWatcher!.emit('all', 'change', path.join(repo, 'src/a.ts'));
+    expect(lastWatcher).toBeDefined();
+    lastWatcher.emit('all', 'change', path.join(repo, 'src/a.ts'));
 
     await vi.waitFor(() => {
       expect(refreshCalls.length).toBe(2);
     });
-    expect(lastWatcher!.close).toHaveBeenCalled();
+    expect(lastWatcher.close).toHaveBeenCalled();
 
     await new Promise((resolve) => setTimeout(resolve, 400));
     expect(refreshCalls).toEqual([[], ['src/a.ts']]);