Post-Phase-4: registry succession and expansion gate

[Riverbraid]

Status

EVIDENCE_GATED

Purpose

Define rules before refreshing or expanding the Evaluation Kit registry.

Required decisions

• authorization process
• evidence required before a pin update
• rollback path
• expected-results update process
• handling of active repositories not currently in the 30-entry registry

Boundary

This issue does not mutate registry pins. Registry freshness is not claimed.

[Riverbraid]

Draft PR Riverbraid/Riverbraid-Golds#6 now classifies all 52 public repositories without changing the 30-entry Evaluation Kit registry. Draft PR Riverbraid/Riverbraid-Documentation#26 explains the separation among role classification, lifecycle, registry membership, verification depth, and future F3/F4 functional-core membership.

These are pre-succession clarity artifacts only. This issue remains the gate for any future registry expansion or pin refresh, including authority, evidence, expected-results updates, and rollback.