Place 32 existing retained frames in RTC FAST without changing the 224 normal or 128 active-OTA queue capacities. Keep the default backing layout unchanged for other boards and cover ownership, wraparound and OTA transfers.
Resolve Serial macro and ESP-NOW wrapper compilation errors. Preserve queue, neighbor, advert-history and Room post capacities while using qualified RTC, PSRAM and word-only IRAM storage on constrained ESP32 targets. Reduce Full infrastructure flash through lossless Room web compression, compact crypto and unused exception metadata removal.
Add focused native regressions for storage ownership, exact protocol output, OTA proofs and build policy. Keep physical flash sizes, OTA slots and RAM guard formulas unchanged.