Reduce power consumption with display sleep and BLE optimizations#1

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thomassimmer wants to merge 12 commits intomainfrom

claude/improve-battery-life-6fqJF

Commits on May 4, 2026

Improve battery life: display sleep, BLE conn params, LED off in standby
claude
committed

Commits on May 5, 2026

Fix root cause of battery drain: enable light sleep by unblocking UART0
claude
committed
Add standby diagnostic logging to diagnose battery drain
claude
committed

Commits on May 6, 2026

Fix crash in standby diagnostics: remove esp_pm_dump_locks(NULL)
claude
committed
Force explicit light sleep instead of relying on FreeRTOS tickless idle
claude
committed
Fix light sleep spin loop: guarantee minimum poll interval after wakeup
claude
committed
Enable single-core mode to unblock FreeRTOS tickless idle light sleep
claude
committed
Fix unicore boot crash: disable BT modem sleep (conflicts with UNICORE)
claude
committed
Remove BT_NIMBLE_RUN_BLE_ON_SUSPEND to fix unicore boot crash
claude
committed
Re-add RUN_BLE_ON_SUSPEND to capture crash backtrace for unicore fix
claude
committed
diag: enable verbose PM lock tracing to find NO_LIGHT_SLEEP holder
claude
committed
pm: re-enable BT modem sleep with main-XTAL sleep clock
claude
committed