Partition Operation

Partition policy makes the availability/consistency tradeoff explicit:

• strict_consistency requires quorum for sensitive operations.
• bounded_degraded permits only reversible or bounded effects within risk budgets.
• availability_preferred continues under pre-authorized limits.
• reconciliation_required blocks new effects until causal branches converge.

The state machine is connected → degraded → partitioned → reconciling → converged | safe_stopped. Irreversible effects remain blocked without quorum or reconciliation.