v0.1.2 - Validator discovery hardening
Stabilizes validator discovery for miners across EVM registry validators and native validator endpoints.
Changes:
- Merge active EVM registry validators with native validator endpoints.
- Retry partial discovery quickly when native validator endpoints are temporarily inconclusive.
- Keep validator registry endpoints active across normal restarts.
- Default shutdown deactivation off for validator registry entries.
- Preserve miner version at v0.1.1; validator/spec remain v0.1.2.