Why:
Legacy project metadata can contain credentials outside the settings scope table.
Sharing raw projection settings exposed them, and generic project PATCH bypassed
the system-managed path guard already enforced by project settings endpoints.
Evidence:
SELF member Host regression failed before the fix. The fixed 4f72aaf server
baseline overlay reproduced HTTP metadata leakage and managed PATCH returning 200.
SELF shared Host-to-HTTP, immutable mask, dotted/schema/fallback, public mutation
and atomic managed-write regressions passed; uncached full suite, isolated PG
Store suite and static build passed. Independent delta replay remains a gate.
Impact:
Registered lifecycle metadata returns detached credential-masked views while
preserving service/configuration keys and persisted data. Generic project PATCH
shares the existing managed validator before rename or settings mutation; allowed
metadata key shapes and raw owner-only management lookups remain available.
Refs:
Dev project-member-access plan r1 Task 1 and R5; approved hard secret boundary;
2026-10-13 shared project metadata review follow-up