refactor: streamline cron job handling and update CLI commands

- Removed legacy cron daemon functionality, integrating cron job execution directly into the gateway process for improved efficiency.
- Updated CLI commands to reflect changes, replacing `hermes cron daemon` with `hermes cron status` and enhancing documentation for cron job management.
- Clarified messaging in the README and other documentation regarding the gateway's role in managing cron jobs.
- Removed obsolete terminal_hecate tool and related configurations to simplify the codebase.

hermes_cli/gateway.py

@@ -356,6 +356,7 @@ def run_gateway(verbose: bool = False):
     print("┌─────────────────────────────────────────────────────────┐")
     print("│           ⚕ Hermes Gateway Starting...                 │")
     print("├─────────────────────────────────────────────────────────┤")
+    print("│  Messaging platforms + cron scheduler                    │")
     print("│  Press Ctrl+C to stop                                   │")
     print("└─────────────────────────────────────────────────────────┘")
     print()