Add -r shortcut for --rebase option in wt sync command (#17)

Added -r as a shortcut for the existing --rebase flag in the sync
command.
This provides a more convenient way for users to request rebasing during
sync.
Also added a test to verify the shortcut works correctly.

Co-authored-by: Claude <noreply@anthropic.com>

Author: dev-ankit

tools/wt-worktree/tests/test_cli.py

@@ -296,6 +296,13 @@ def test_sync_command_with_rebase(runner, initialized_repo, no_prompt):
     assert result.exit_code == 0 or result.exit_code == 3
 
 
+def test_sync_command_with_rebase_shortcut(runner, initialized_repo, no_prompt):
+    """Test wt sync -r command (shortcut for --rebase)."""
+    # Run sync with -r shortcut - will have no upstream but shouldn't crash
+    result = runner.invoke(cli, ["sync", "-r"])
+    assert result.exit_code == 0 or result.exit_code == 3
+
+
 def test_sync_command_invalid_args(runner, initialized_repo):
     """Test wt sync with invalid argument combinations."""
     # Both include and exclude

tools/wt-worktree/wt/cli.py

@@ -491,7 +491,7 @@ def config(ctx: Context, key: Optional[str], value: Optional[str],
 @click.option("--all", "sync_all", is_flag=True, help="Sync all worktrees")
 @click.option("--include", help="Comma-separated list of worktrees to sync")
 @click.option("--exclude", help="Comma-separated list of worktrees to skip")
-@click.option("--rebase", is_flag=True, help="Rebase onto default base after pull")
+@click.option("-r", "--rebase", is_flag=True, help="Rebase onto default base after pull")
 @pass_context
 def sync(ctx: Context, sync_all: bool, include: Optional[str],
          exclude: Optional[str], rebase: bool):