fix(nav,radar,wavelog): 4.5.2 third overwrite - log page entry visible, freq format 3 decimals, direct freq extraction

User-test fixes (3rd overwrite, version stays 4.5.2/452):

1. Log page was invisible everywhere outside the radar tab:
   - allNavItems in MainScreen.kt was missing Screen.WavelogLog ->
     not in bottom nav, not in More menu
   - SettingsScreen UI-order lists were missing the WavelogLog row ->
     not in page order settings either
   Now the Log page appears in the More menu (default sub menu tail,
   migration appends it) AND in UI settings page-order lists.
2. Frequency display: formatFrequency was MHz.kHz.Hz (145.900.000);
   now MHz.kHz (145.900) per request. Applies to transceiver panel
   and Log page alike (shared formatter).
3. Log tab frequency: now extracts the exact numbers shown in the
   transceiver panel (txBaseFrequencyHz for TX, uplinkLow/uplinkHigh
   range for linear) - no re-computation, no extra decimals. Upload
   uses the same tuned frequency (Hz precision kept internally).
4. Log page (More menu) table: date+time column (MM-dd HH:mm),
   row separators (table lines), uploaded checkmark kept.

Verified: check_strings OK (8 files); :app:compileDebugKotlin
BUILD SUCCESSFUL (includes upstream merge 1a552417).

app/src/main/java/com/rtbishop/look4sat/MainScreen.kt

@@ -148,7 +148,7 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
     val trackingState by container.radioTrackingService.state.collectAsStateWithLifecycle()
     val otherSettings by container.settingsRepo.otherSettings.collectAsStateWithLifecycle()
     // UI 设置: 按 screenOrder 排序(空 = 默认顺序), 再按 hiddenScreens 过滤(设置页固定保留)
-    val allNavItems = listOf(Screen.Satellites, Screen.Passes, Screen.Radar, Screen.Mutual, Screen.Roaming, Screen.CwDecode, Screen.Map, Screen.Settings)
+    val allNavItems = listOf(Screen.Satellites, Screen.Passes, Screen.Radar, Screen.Mutual, Screen.Roaming, Screen.CwDecode, Screen.WavelogLog, Screen.Map, Screen.Settings)
         .sortedBy { screen ->
             // 未知(新页面如 CwDecode 不在旧持久化顺序里): 用默认顺序位置(漫游↔地图), 再兜底最后
             val idx = otherSettings.screenOrder.indexOf(screen.screenId)