OR-007 Health and Load Aggregation

[ymote]

OR-007 Health and Load Aggregation

Objective

Implement health and load aggregation across runtime workers.

Scope

• Add timestamped load snapshots.
• Add health transition events.
• Track stale worker state.
• Provide an aggregate view for observability and routing.

Acceptance Criteria

• Tests cover heartbeat freshness and stale workers.
• Draining and unhealthy workers are excluded from new routing decisions.
• Aggregated model capacity can be reported to OminiX API.

Agent Notes

This issue should prepare the router for multiple OminiX Runtime workers serving DeepSeek V4 Flash on the 8x5090 CUDA target.