feat(tui): add automatic service state change notifications

- Add ServiceStateChangedEvent for service state transitions
- StateProvider.service_state_changed emits events to TUI listeners
- WorkspaceStateProvider registers as listener on recreated services
- TUI handles ServiceStateChangedEvent to update Services tab title
- Services tab now updates automatically when services start/stop

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: bpiwowar

src/experimaestro/cli/__init__.py

@@ -260,11 +260,6 @@ def get_command(self, ctx, name):
 cli.add_command(Launchers("connectors", help="Connector specific commands"))
 cli.add_command(Launchers("tokens", help="Token specific commands"))
 
-# Import and add progress commands
-from .progress import progress as progress_cli  # noqa: E402
-
-cli.add_command(progress_cli)
-
 # Import and add jobs commands
 from .jobs import jobs as jobs_cli  # noqa: E402