Replay in an isolated checkout of 0245efa33be68b390422366a238a6b8c8a4d4716 with this PR applied. Extract under progress/.artifacts/singleton-policy-replay so the controller resolves the repository. Copy SingletonTestTypes.cs.txt into Tests/Editor/Utils/SingletonTestTypes.cs. Run singleton-policy-final-paired.ps1 in native PowerShell with Unity6000.6.7f1 installed. The controller installs each recorded fixture source, verifies thirteen matching normalized case names and six candidate policy cases, then restores the candidate. Choose an unused owned temporary project path. Both variants share the registry; baseline still performs the original per-test asset setup. New runs have new process and assembly identities. Summed fixture durations exclude editor startup and do not represent total-suite improvement. A rejected preparatory capture expected fourteen cases; it contributes no accepted observation.
