--- 🤖 Starting New Agent Attempt ---
Task: @/mysportmanager-shared/lib/services/notification_service.dart 

I want to transition from polling to a Production FCM push notification system. 

CONTEXT:
1. Server: notifications.php currently handles scheduling. I need it updated to store/manage FCM device tokens.
2. Mobile: Notification scaffolding is there, but I need logic to register the FCM token and send it to the server.
3. Goal: A free-to-operate long-term solution using FCM and a PHP cron job.

TASK FOR ARCHITECT MODE:
- Read both files and analyze the current structure.
- Plan the database schema changes for storing device_tokens (associated with user IDs).
- Outline the logic for a new PHP script (e.g., fcm_sender.php) that can be triggered by a cron job to send pending notifications via FCM.
- Plan the update for notification_service.dart to register the token and sync it with the backend.

Wait for my approval on the plan before switching to Code Mode.

--- 💾 ACTION REQUIRED: SAVE PROJECT STATE ---
Backup confirmed. Proceeding with AI planning...

--- 🧠 AGENT 1: PLANNER ---
./agent_manager.sh: line 49: gemini: command not found

--- 💻 AGENT 2: EXECUTER (Working on Plan) ---
ERROR: Plan file is empty or unreadable. Aborting execution.