Establish Validator v1 as the production baseline

@GabrielePicco is already working on this.

Since Sep 17, 2026.

## Goal

Release the current validator as a dependable baseline that the team can keep operating if the next major version takes longer to roll out.

## Why

The current validator has known limits under load, occasional stalls, and rare account-lifecycle failures. V1 is not intended to solve all of them. It provides a clearly understood, supportable starting point while the larger architecture change is completed.

## Scope

- Land and verify the pending account-handling fix that blocks release.
- Release the current mainline validator without adding new product features.
- Document known operating limits and conditions that require intervention.
- Confirm upgrade, rollback, restart, and recovery procedures.
- Validate that delegation and undelegation complete safely for release-critical paths.
- Record baseline reliability and performance measurements for comparison with V2.
- Consider the epic complete when the release is published, the operating procedures are exercised, and known limitations are documented.
- Keep new features, V2 architectural work, and RedSuite qualification outside the V1 release gate.
- Roadmap target: late September 2026.