test(hooks): regression coverage for round 1 review fixes

9 new cases locking in the behavior added by the previous two
commits. Each was verified to fail before the fix and pass after.

Greptile — quote-aware depth counting:
  - blocks $(echo ")"; (npm run dev))
  - blocks (echo ")"; npm run dev)
  - allows $(echo "(npm run dev)") — () inside double-quoted body is literal

Greptile — brace groups:
  - blocks { npm run dev; }
  - blocks echo hi && { npm run dev; }
  - allows {npm run dev} — bash brace-group syntax requires a space after {

CodeRabbit — missing package-manager variants:
  - blocks yarn run dev (yarn 1.x convention)
  - blocks bun dev (bun bare form)

CodeRabbit nitpick — symmetric quote test:
  - blocks echo "$(npm run dev)" — double-quoted substitution still substitutes

The `{npm run dev}` allow case is intentional: bash treats `{` as
a reserved word only when followed by whitespace. The pre-fix code
already passed this through, but until now we never asserted it,
so a future change to brace handling could silently start blocking
literal `{npm` tokens.

tests/hooks/pre-bash-dev-server-block.test.js

@@ -144,6 +144,55 @@ function runTests() {
     }) ? passed++ : failed++);
   }
 
+  // --- Round 1 review fixes (Greptile + CodeRabbit on PR #1889) ---
+
+  if (!isWindows) {
+    (test('blocks $(echo ")"; (npm run dev)) — quoted ) does not terminate $() early', () => {
+      const result = runScript('$(echo ")"; (npm run dev))');
+      assert.strictEqual(result.code, 2, `Expected exit code 2, got ${result.code}`);
+    }) ? passed++ : failed++);
+
+    (test('blocks (echo ")"; npm run dev) — quoted ) does not terminate (...) early', () => {
+      const result = runScript('(echo ")"; npm run dev)');
+      assert.strictEqual(result.code, 2, `Expected exit code 2, got ${result.code}`);
+    }) ? passed++ : failed++);
+
+    (test('allows $(echo "(npm run dev)") — () inside double-quoted substitution body is literal', () => {
+      const result = runScript('$(echo "(npm run dev)")');
+      assert.strictEqual(result.code, 0, `Expected exit code 0, got ${result.code}`);
+    }) ? passed++ : failed++);
+
+    (test('blocks { npm run dev; } — brace group runs in current shell', () => {
+      const result = runScript('{ npm run dev; }');
+      assert.strictEqual(result.code, 2, `Expected exit code 2, got ${result.code}`);
+    }) ? passed++ : failed++);
+
+    (test('blocks echo hi && { npm run dev; } — brace group after &&', () => {
+      const result = runScript('echo hi && { npm run dev; }');
+      assert.strictEqual(result.code, 2, `Expected exit code 2, got ${result.code}`);
+    }) ? passed++ : failed++);
+
+    (test('allows {npm run dev} — bash requires space after { to form a group', () => {
+      const result = runScript('{npm run dev}');
+      assert.strictEqual(result.code, 0, `Expected exit code 0, got ${result.code}`);
+    }) ? passed++ : failed++);
+
+    (test('blocks yarn run dev — yarn 1.x convention', () => {
+      const result = runScript('yarn run dev');
+      assert.strictEqual(result.code, 2, `Expected exit code 2, got ${result.code}`);
+    }) ? passed++ : failed++);
+
+    (test('blocks bun dev — bun bare form', () => {
+      const result = runScript('bun dev');
+      assert.strictEqual(result.code, 2, `Expected exit code 2, got ${result.code}`);
+    }) ? passed++ : failed++);
+
+    (test('blocks "$(npm run dev)" — double-quoted substitution still substitutes', () => {
+      const result = runScript('echo "$(npm run dev)"');
+      assert.strictEqual(result.code, 2, `Expected exit code 2, got ${result.code}`);
+    }) ? passed++ : failed++);
+  }
+
   // --- Edge cases ---
 
   (test('empty/invalid input passes through (exit code 0)', () => {