feat(ui-core,ui-lvgl): user presets and battery level in the Core, L2 my presets, scopes, battery display, clock seconds

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/development/l2-hardware-checklist.md

@@ -66,6 +66,15 @@ Confirmed: green dot inside the ring, waypoints much better, download works, set
 - [ ] Room server login from the phone app / L1 still works while this exists (only admin logins go to the new session)
 - [ ] L1 (ui-new): Tools > Admin works as before (login, saved password, typed values, confirm reboot); it now also skips the login for the node you just used
 
+## New: My presets, scopes, battery display, clock seconds (2026-09-25)
+- [ ] Settings > Radio > MY PRESETS > Save current settings: name popup, Enter → "Preset saved", the row shows freq / SF / BW / CR with a tick while in use, and it is in the Preset dropdown
+- [ ] Tap a saved preset → Use (radio switches) / Delete (confirm, red) → "Preset deleted"; a 5th name replaces the oldest (hint says so when all 4 are used); presets survive a reboot
+- [ ] L1: Settings › Radio › Preset lists the presets saved on L2 and vice versa (same slots)
+- [ ] Settings > Radio > SCOPE > Scopes: "* (no scope)" is the default; + Add → name → listed; tap → Default / Rename / Delete; the Radio screen row shows the default
+- [ ] Deleting the default scope makes * the default; a channel set to the deleted scope goes back to none (channel options > Scope); the app shows the same default scope after a sync
+- [ ] Settings > Display & power > Battery display: Icon / Percent / Voltage change the status bar at once; percent follows the L1 curve (empties at the Battery shutdown voltage)
+- [ ] Settings > Display & power > TIME > Clock seconds off: Home and lock screen clocks show HH:MM; on: HH:MM:SS
+
 ## New: Diagnostics, auto-advert, compass (2026-09-25)
 - [ ] Settings > SYSTEM > Diagnostics: tabs Live / System / Font; Live counters (uptime, rx/tx, heap, noise floor, RSSI/SNR, queue, errors) tick every second
 - [ ] Live > Reset → confirm popup → "Counters reset", rx/tx and forwarded go back to 0

docs/development/ui-core.md

@@ -110,7 +110,7 @@ call the same ones, so e.g. "marking a channel read" has one implementation.
 
 ### 5. Declarative settings schema
 
-`ui-core/SettingsSchema.h` holds three pages -- navigation (trail, live share, arrival alert, units), display & power (brightness, screen off, wake on message, battery shutdown, GPS power saving, time zone) and messages & contacts (DM resends, contact expiry, favourites first). An entry is a one-byte index by default, or a `values` table over a 1/2/4-byte field (seconds, millivolts, an hour offset, `{1, 0}` for a field stored inverted); side effects run through `UiCore` (`applyGpsInterval()`, `host()->applyDisplayPrefs()`). ui-lvgl renders each page; ui-new still uses its own screens. Radio settings are not schema rows (preset list, typed frequency, radio side effects): `ui-core/RadioControl.h` applies them (`applyParams`, `applyTxPower`, `applyApc`, presets = built-ins + user slots) for both ui-new's Settings > Radio and ui-lvgl's Radio screen. Channel management is `ui-core/ChannelControl.h` (`chanctl::`): add Public / Hashtag / Private (passphrase or 32-hex key), rename, delete, notifications / favourite / scope, and `onRemoved()` -- the cleanup of every channel-keyed pref, run by `UiCore::onChannelRemoved` whoever deleted the channel (this device or the app); contacts get the same through `UiCore::cleanupContactPrefs`. Favourites dial slots: `ui-core/Favourites.h` (`pinContact` / `pinChannel` move an entry that is already on another slot; the slot's name is `contactctl::favName`). The schema's display page also carries the lock screen (`auto_lock`) and the 12-hour clock, which ui-lvgl implements (a slide-to-unlock card after the screen turns off). Remote admin is `ui-core/AdminSession.h` (`UiCore::admin`): login with the saved password (forgotten on a wrong password or a silent timeout), CLI round trips with timeouts, the field table (`admin::`), typed values; results come out one at a time through `take()`. `UiCore` offers login answers and CLI replies to it first; only room logins it wasn't waiting for reach the frontend. ui-new's Tools > Admin and ui-lvgl's Admin screen are views over it. The bot's settings are a table too, `ui-core/BotConfig.h` (`botcfg::`: tabs, rows, the NodePrefs flag / text / hour behind each, reply placeholders); ui-new's Tools > Bot and ui-lvgl's Bot screen render it, the bot itself runs in MyMesh. Room servers: `ui-core/RoomSessions.h` (`UiCore::rooms`) keeps who is logged in this session, the one login in flight (with a timeout) and the saved passwords (saved on success, forgotten on failure); `open(contact)` says whether to go straight in, wait for a background login or ask for a password, and outcomes come out through `take()`. Per-contact helpers are `ui-core/ContactControl.h` (`contactctl::`: DM notification / melody overrides, favourite flag, the `@[name] ` reply prefix, splitting a room post into author and text, naming a message's path hops). ui-new's Messages and ui-lvgl's Chats / thread use both. Diagnostics rows are `ui-core/Diagnostics.h` (`diag::`: live counters, system card, font card, counter reset), shown by ui-new's Tools > Diagnostics and ui-lvgl's Settings > Diagnostics. Auto-advert is a schema row (`advert_auto_interval_sec`, sent by MyMesh); ui-new keeps its Tools > Auto-Advert screen over the same pref. The compass (ui-lvgl Home > Compass, ui-new Tools > Compass) reads `UiCore::course`.
+`ui-core/SettingsSchema.h` holds three pages -- navigation (trail, live share, arrival alert, units), display & power (brightness, screen off, wake on message, lock screen, battery display, battery shutdown, GPS power saving, time zone, 12-hour clock, clock seconds) and messages & contacts (DM resends, contact expiry, favourites first). An entry is a one-byte index by default, or a `values` table over a 1/2/4-byte field (seconds, millivolts, an hour offset, `{1, 0}` for a field stored inverted); side effects run through `UiCore` (`applyGpsInterval()`, `host()->applyDisplayPrefs()`). ui-lvgl renders each page; ui-new still uses its own screens. Radio settings are not schema rows (preset list, typed frequency, radio side effects): `ui-core/RadioControl.h` applies them (`applyParams`, `applyTxPower`, `applyApc`, presets = built-ins + user slots) for both ui-new's Settings > Radio and ui-lvgl's Radio screen. Channel management is `ui-core/ChannelControl.h` (`chanctl::`): add Public / Hashtag / Private (passphrase or 32-hex key), rename, delete, notifications / favourite / scope, and `onRemoved()` -- the cleanup of every channel-keyed pref, run by `UiCore::onChannelRemoved` whoever deleted the channel (this device or the app); contacts get the same through `UiCore::cleanupContactPrefs`. Favourites dial slots: `ui-core/Favourites.h` (`pinContact` / `pinChannel` move an entry that is already on another slot; the slot's name is `contactctl::favName`). The schema's display page also carries the lock screen (`auto_lock`) and the 12-hour clock, which ui-lvgl implements (a slide-to-unlock card after the screen turns off). Remote admin is `ui-core/AdminSession.h` (`UiCore::admin`): login with the saved password (forgotten on a wrong password or a silent timeout), CLI round trips with timeouts, the field table (`admin::`), typed values; results come out one at a time through `take()`. `UiCore` offers login answers and CLI replies to it first; only room logins it wasn't waiting for reach the frontend. ui-new's Tools > Admin and ui-lvgl's Admin screen are views over it. The bot's settings are a table too, `ui-core/BotConfig.h` (`botcfg::`: tabs, rows, the NodePrefs flag / text / hour behind each, reply placeholders); ui-new's Tools > Bot and ui-lvgl's Bot screen render it, the bot itself runs in MyMesh. Room servers: `ui-core/RoomSessions.h` (`UiCore::rooms`) keeps who is logged in this session, the one login in flight (with a timeout) and the saved passwords (saved on success, forgotten on failure); `open(contact)` says whether to go straight in, wait for a background login or ask for a password, and outcomes come out through `take()`. Per-contact helpers are `ui-core/ContactControl.h` (`contactctl::`: DM notification / melody overrides, favourite flag, the `@[name] ` reply prefix, splitting a room post into author and text, naming a message's path hops). ui-new's Messages and ui-lvgl's Chats / thread use both. Diagnostics rows are `ui-core/Diagnostics.h` (`diag::`: live counters, system card, font card, counter reset), shown by ui-new's Tools > Diagnostics and ui-lvgl's Settings > Diagnostics. Auto-advert is a schema row (`advert_auto_interval_sec`, sent by MyMesh); ui-new keeps its Tools > Auto-Advert screen over the same pref. The compass (ui-lvgl Home > Compass, ui-new Tools > Compass) reads `UiCore::course`. Saving / deleting the user's radio presets is `radioctl::saveUserPreset` / `deleteUserPreset` (ui-new's preset picker and ui-lvgl's Radio > My presets); the scope list is edited through MyMesh (`addScope` / `renameScope` / `removeScope` / `setDefaultScope`), which ui-lvgl's Radio > Scopes and ui-new's Settings > Radio > Scope call directly. The battery percentage (LiPo curve, empty at the shutdown voltage) and the display mode are `ui-core/Battery.h`, used by both status bars; the schema carries Battery display and Clock seconds.
 
 Replaces the per-item code in `SettingsScreen`: