feat(bridge): add wifi/serial bridge runtime and UI

Co-authored-by: Cursor <cursoragent@cursor.com>

src/controllers/sequence.py

@@ -2,7 +2,7 @@ from microdot import Microdot
 from microdot.session import with_session
 from models.sequence import Sequence
 from models.profile import Profile
-from models.transport import get_current_sender
+from models.transport import get_current_bridge
 from models.preset import Preset
 from util.profile_bundle import export_sequence_bundle, import_sequence_bundle
 import json
@@ -254,7 +254,7 @@ async def stop_sequence_playback(request, session):
 @with_session
 async def play_sequence(request, session, id):
     """Start server-driven playback for a sequence in a zone (body: {\"zone_id\": \"...\"})."""
-    if not get_current_sender():
+    if not get_current_bridge():
         return (
             json.dumps({"error": "Transport not configured"}),
             503,