feat: add git stash management

Add a Stashes dialog with create, apply, pop, and drop actions
Include untracked files automatically when stashing
Show file counts for current changes and stash entries

packages/ui/src/lib/gitApi.ts

@@ -546,6 +546,42 @@ export async function gitFetch(
   return gitHttp.gitFetch(directory, options);
 }
 
+export async function listGitStashes(directory: string): Promise<{ stashes: import('./api/types').GitStashEntry[] }> {
+  const runtime = getRuntimeGit();
+  if (runtime) return runtime.listGitStashes(directory);
+  return gitHttp.listGitStashes(directory);
+}
+
+export async function countGitStashFiles(directory: string, refs: string[]): Promise<{ counts: Record<string, number> }> {
+  const runtime = getRuntimeGit();
+  if (runtime) return runtime.countGitStashFiles(directory, refs);
+  return gitHttp.countGitStashFiles(directory, refs);
+}
+
+export async function stashGitChanges(directory: string, options: { message?: string } = {}): Promise<{ success: boolean; created: boolean; message: string; output: string }> {
+  const runtime = getRuntimeGit();
+  if (runtime) return runtime.stashGitChanges(directory, options);
+  return gitHttp.stashGitChanges(directory, options);
+}
+
+export async function applyGitStash(directory: string, options: { ref: string }): Promise<{ success: boolean; ref: string }> {
+  const runtime = getRuntimeGit();
+  if (runtime) return runtime.applyGitStash(directory, options);
+  return gitHttp.applyGitStash(directory, options);
+}
+
+export async function popGitStash(directory: string, options: { ref: string }): Promise<{ success: boolean; ref: string }> {
+  const runtime = getRuntimeGit();
+  if (runtime) return runtime.popGitStash(directory, options);
+  return gitHttp.popGitStash(directory, options);
+}
+
+export async function dropGitStash(directory: string, options: { ref: string }): Promise<{ success: boolean; ref: string }> {
+  const runtime = getRuntimeGit();
+  if (runtime) return runtime.dropGitStash(directory, options);
+  return gitHttp.dropGitStash(directory, options);
+}
+
 export async function checkoutBranch(directory: string, branch: string): Promise<{ success: boolean; branch: string }> {
   const runtime = getRuntimeGit();
   if (runtime) return runtime.checkoutBranch(directory, branch);