- History flush runs on the core-0 worker (snapshot + storage-busy gate +
bounded shutdown wait): kills the V4's multi-second ui:hist stalls and
the refuses-to-wake-after-message symptom (SPIFFS GC off the UI thread).
- BLE + Wi-Fi runtime enables share the boot co-init heap guard (50 KB
free + 20 KB block): refuse with a toast + revert the switch instead of
panicking (BLE) or silently not starting while claiming on (Wi-Fi).
- Internal DRAM: static footprint 95,365 -> 64,908 B (30.5 KB freed):
serial_interface -> PSRAM; 23 keyboard layout maps const'd -> flash;
nine rings/tables -> psAlloc PSRAM (UITask/TouchPrefsStore/MyMesh);
unused TinyUSB MSC + DFU-mode class drivers stubbed out of the link
(usb_unused_class_stubs.c) — CDC + runtime-DFU untouched, double-flash
verified over the stubbed stack.
- DataStore prefs writes are crash-safe (write .tmp, swap) with a
self-healing loader (.tmp recovery) and a truthful save result up to
the profile-name toast — fixes the boots-with-default-name-once report.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
