feat: add cross-platform support for hooks executor (#623)

src/tests/hooks/e2e.test.ts

@@ -15,7 +15,8 @@ import { join } from "node:path";
 
 const projectRoot = process.cwd();
 
-// Skip on Windows - hooks executor uses `sh -c` which doesn't exist on Windows
+// Skip on Windows - test commands use bash syntax (>>, &&, cat, etc.)
+// The executor itself is cross-platform, but these test commands are bash-specific
 const isWindows = process.platform === "win32";
 
 interface TestEnv {

src/tests/hooks/executor.test.ts

@@ -16,7 +16,8 @@ import {
   type StopHookInput,
 } from "../../hooks/types";
 
-// Skip on Windows - hooks executor uses `sh -c` which doesn't exist on Windows
+// Skip on Windows - test commands use bash syntax (&&, >&2, sleep, etc.)
+// The executor itself is cross-platform, but these test commands are bash-specific
 const isWindows = process.platform === "win32";
 
 describe.skipIf(isWindows)("Hooks Executor", () => {

src/tests/hooks/integration.test.ts

@@ -21,7 +21,8 @@ import {
   runUserPromptSubmitHooks,
 } from "../../hooks";
 
-// Skip on Windows - hooks executor uses `sh -c` which doesn't exist on Windows
+// Skip on Windows - test commands use bash syntax (&&, >&2, etc.)
+// The executor itself is cross-platform, but these test commands are bash-specific
 const isWindows = process.platform === "win32";
 
 describe.skipIf(isWindows)("Hooks Integration Tests", () => {