fix(windows): hide console window for git child processes

src/extraction/index.ts

@@ -191,7 +191,7 @@ export function buildDefaultIgnore(rootDir: string): Ignore {
  * (See issue #193.)
  */
 function collectGitFiles(repoDir: string, prefix: string, files: Set<string>): void {
-  const gitOpts = { cwd: repoDir, encoding: 'utf-8' as const, timeout: 30000, maxBuffer: 50 * 1024 * 1024, stdio: ['pipe', 'pipe', 'pipe'] as ['pipe', 'pipe', 'pipe'] };
+  const gitOpts = { cwd: repoDir, encoding: 'utf-8' as const, timeout: 30000, maxBuffer: 50 * 1024 * 1024, stdio: ['pipe', 'pipe', 'pipe'] as ['pipe', 'pipe', 'pipe'], windowsHide: true };
 
   // Tracked files. --recurse-submodules pulls in files from active submodules,
   // which the index would otherwise represent only as a commit pointer.
@@ -241,7 +241,7 @@ function getGitVisibleFiles(rootDir: string): Set<string> | null {
     const gitRoot = execFileSync(
       'git',
       ['rev-parse', '--show-toplevel'],
-      { cwd: rootDir, encoding: 'utf-8', timeout: 5000, stdio: ['pipe', 'pipe', 'pipe'] }
+      { cwd: rootDir, encoding: 'utf-8', timeout: 5000, stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true }
     ).trim();
 
     if (path.resolve(gitRoot) !== path.resolve(rootDir)) {
@@ -250,7 +250,7 @@ function getGitVisibleFiles(rootDir: string): Set<string> | null {
         execFileSync(
           'git',
           ['check-ignore', '-q', path.resolve(rootDir)],
-          { cwd: rootDir, encoding: 'utf-8', timeout: 5000, stdio: ['pipe', 'pipe', 'pipe'] }
+          { cwd: rootDir, encoding: 'utf-8', timeout: 5000, stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true }
         );
         // Directory is gitignored by parent repo — fall back to filesystem walk
         return null;
@@ -291,7 +291,7 @@ function getGitChangedFiles(rootDir: string): GitChanges | null {
     const output = execFileSync(
       'git',
       ['status', '--porcelain', '--no-renames'],
-      { cwd: rootDir, encoding: 'utf-8', timeout: 10000, stdio: ['pipe', 'pipe', 'pipe'] }
+      { cwd: rootDir, encoding: 'utf-8', timeout: 10000, stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true }
     );
 
     const modified: string[] = [];

src/sync/git-hooks.ts

@@ -44,6 +44,7 @@ export function isGitRepo(projectRoot: string): boolean {
       cwd: projectRoot,
       encoding: 'utf8',
       stdio: ['ignore', 'pipe', 'ignore'],
+      windowsHide: true,
     }).trim();
     return out === 'true';
   } catch {
@@ -61,6 +62,7 @@ function gitHooksDir(projectRoot: string): string | null {
       cwd: projectRoot,
       encoding: 'utf8',
       stdio: ['ignore', 'pipe', 'ignore'],
+      windowsHide: true,
     }).trim();
     if (!out) return null;
     return path.isAbsolute(out) ? out : path.resolve(projectRoot, out);

src/sync/worktree.ts

@@ -35,6 +35,7 @@ export function gitWorktreeRoot(dir: string): string | null {
       cwd: dir,
       encoding: 'utf8',
       stdio: ['ignore', 'pipe', 'ignore'],
+      windowsHide: true,
     }).trim();
     return out ? realpath(out) : null;
   } catch {