Why: RDM delegated rename rebuilt the creator Host and could commit a Backend project rename after the delegated operator was disabled.
Evidence: SQLite and isolated PostgreSQL targeted checks cover operator/creator disable order, two processes, sorted locks, auth-off local compatibility, and HTTP/command Host wiring; exact committed-head replay remains pending.
Impact: Adds a request-bound single-project extension capability and checks operator plus creator in the final Backend transaction. Global ScopedHost cannot derive delegated authority; RDM cross-database atomicity remains outside the promise.
Refs: Approved Documents delegated-projection amendment 5783940, U3 A1-A4 candidate adcd8fe, Dev feature/iam-u3-account-directory-recovery.
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