0.27.6: State Flow Restoration Fence and Codemode Compaction

• Restoration and Compaction: Advances the exact State Flow pin to 0.25.5. Failed Active restoration blocks inference before the provider rather than exposing native history; valid selection, accepted Start or explicit Passive/Off permits recovery. Native Codemode metadata no longer blocks completed-history compaction, while values/deletions survive compaction and resume. Unknown metadata and visible custom context stay protected. Other pins, resources and load order are unchanged.