Tyrell Build 13 stale-app archive rereview v3

Completed the independent frozen-diff release rereview and issued a one-canary GO after finding no P0/P1 blocker.

• Scope: rdmsm4x review only; no installation, deployment, process, LaunchServices, production archive, or project-source mutation.
• Added: /Users/richh/dev/_handoff/tyrell-build13-stale-app-archive-rereview-v3-20260903.md
• Report SHA-256: f51c6486e4276d8986bf8405087dabbcb939aed46d32a58b97bd5ce2df3cf205
• Frozen worktree: /Users/richh/dev/_worktrees/tyrell-build18-chat-catalog-20260902
• Base HEAD: bf4453d68767bd5e236ba86df5b71e26b57ff64c
• Evidence: exact three-file and synthetic-patch hashes revalidated; syntax passed; all nine release script contracts passed; headless lifecycle passed; tracked and untracked whitespace checks passed.
• Decision: GO for one designated canary only after exact Build 13 acceptance. No fleet-expansion approval is implied.
• Residual: the different-device restore refusal is executable and fail-closed but lacks a synthetic cross-device negative fixture; classified P2/non-blocking for one canary.
• Undo: remove this changelog and the handoff report if their documentation record is no longer required; neither affected runtime state.
• Outstanding owner action: run the bounded canary and preserve its exact archive/current-app/process/API evidence before any fleet expansion.