Implement Fed crackdown cycles based on crime metrics

[rdearman]

Implement periodic Fed crackdowns in response to in-game criminal activity.

Parent: #437

Summary:

• Monitor crime metrics (bounties, fines, criminal flags).
• Trigger Fed crackdowns: increased patrols, more severe penalties, targeted operations.
• Announce via news and direct messages.

Acceptance criteria:

• Crime score and thresholds defined.
• Crackdown phases scripted with clear effects.
• Logged robustly for tuning.

See epic for canon doc links.