test: move the /bin/bash parse case out of the windows-smoke probe test (#3601)

Main's windows-smoke runs test/gstack-launch-probe.test.ts, and a hardcoded
/bin/bash path takes a file out of the Windows-safe set, so the merged tree
failed windows-native-workflows. The case now lives in
test/bash32-case-in-substitution.test.ts with the Linux scan.

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

test/bash32-case-in-substitution.test.ts

@@ -2,8 +2,10 @@
  * #3601: macOS /bin/bash 3.2 cannot parse a case pattern without its leading
  * ( inside $( ), and Linux CI's bash 5 can, so bin/gstack-launch-probe.sh
  * shipped a parse error that made gstack-doctor call the probe "missing".
- * The repo-wide case is the guard Linux CI can run; test/gstack-launch-probe
- * .test.ts parses the probe with /bin/bash, which is bash 3.2 on macOS.
+ * The repo-wide case is the guard Linux CI can run; the last case parses the
+ * probe with /bin/bash, which is bash 3.2 on macOS. It lives here, not in
+ * test/gstack-launch-probe.test.ts, because that file runs in windows-smoke and
+ * a hardcoded /bin/bash path takes a file out of the Windows-safe set.
  */
 import { describe, expect, test } from 'bun:test';
 import { spawnSync } from 'child_process';
@@ -12,6 +14,7 @@ import * as path from 'path';
 import { scanBash32CaseInSubstitution } from './helpers/bash32-case-scan';
 
 const ROOT = path.resolve(import.meta.dir, '..');
+const PROBE = path.join(ROOT, 'bin/gstack-launch-probe.sh');
 
 function trackedShellScripts(): string[] {
   const files = spawnSync('git', ['ls-files', '-z'], { cwd: ROOT, encoding: 'utf8', timeout: 30_000 }).stdout.split('\0').filter(Boolean);
@@ -48,4 +51,12 @@ describe('bash 3.2: case patterns inside a substitution (#3601)', () => {
     expect(hits).toEqual([]);
   });
 
+  // Value: protects=the probe parses under macOS /bin/bash 3.2, so gstack-doctor can source it (#3601);
+  //   fails_when=a case pattern inside $( ) loses its leading (, on a macOS runner only: Linux /bin/bash is 5.x, which parsed the old line,
+  //   so the scan above is the Linux CI guard; why_new=test/gstack-launch-probe.test.ts runs PATH bash; seam=none
+  test.skipIf(!fs.existsSync('/bin/bash'))('bin/gstack-launch-probe.sh parses under /bin/bash (catches #3601 only where /bin/bash is 3.2, i.e. macOS)', () => {
+    const r = spawnSync('/bin/bash', ['-n', PROBE], { encoding: 'utf8', timeout: 30_000 });
+    expect(r.stderr).toBe('');
+    expect(r.status).toBe(0);
+  });
 });

test/gstack-launch-probe.test.ts

@@ -1,5 +1,4 @@
 import { afterEach, describe, expect, test } from 'bun:test';
-import { spawnSync } from 'node:child_process';
 import * as fs from 'node:fs';
 import * as os from 'node:os';
 import * as path from 'node:path';
@@ -81,13 +80,4 @@ describe.skipIf(process.platform === 'win32')('gstack-launch-probe.sh classifica
     expect(r.stdout).toContain('missing=[bin/gstack-global-discover]');
     expect(r.stdout).not.toContain('design/dist/design');
   });
-
-  // Value: protects=the probe parses under macOS /bin/bash 3.2, so gstack-doctor can source it (#3601);
-  //   fails_when=a case pattern inside $( ) loses its leading (, on a macOS runner only: Linux /bin/bash is 5.x, which parsed the old line,
-  //   so test/bash32-case-in-substitution.test.ts is the Linux CI guard; why_new=the cases above run PATH bash; seam=none
-  test.skipIf(!fs.existsSync('/bin/bash'))('parses under /bin/bash (catches #3601 only where /bin/bash is 3.2, i.e. macOS)', () => {
-    const r = spawnSync('/bin/bash', ['-n', PROBE], { encoding: 'utf8', timeout: 30_000 });
-    expect(r.stderr).toBe('');
-    expect(r.status).toBe(0);
-  });
 });