Extend the cooperative contact transaction to uncached ESP32 storage,
including the PSRAM policy used by the XIAO and V4. Preserve owned contact
copies, the 152-byte disk format, revision cancellation and synchronous
durability operations. Keep contact capacities unchanged.
Avoid SDK error logs when optional blob or transaction cleanup files are
absent, while preserving metadata and deletion failure handling.
Validate cached ESP/nRF and uncached PSRAM paths under ASan/UBSan,
including bounded writes, mutation cancellation, faults, recovery and
reboot readback. Update the existing uncached production fixture.
Read identities up to three times before allowing replacement, publish only complete reads, and require new startup keys to be saved with bounded retries.
Use authoritative replay-file metadata throughout persistence and clock recovery. Validate setperm input before narrowing or mutating roles, and add production-path regression coverage.