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).

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/SettingsScreen.kt

@@ -704,6 +704,7 @@ private fun UiSettingsCard(
         R.string.nav_mutual to "Mutual",
         R.string.nav_roaming to "Roaming",
         R.string.nav_cw to "CwDecode",
+        R.string.nav_log to "WavelogLog",
         R.string.nav_map to "Map",
         R.string.nav_prefs to "Settings"
     ) // name 必须与 Screen.screenId 一致 (R8 安全)