Merge main into chrome/main

lib/l10n/app_en.arb

@@ -367,6 +367,14 @@
       }
     }
   },
+  "channels_channelDeleteFailed": "Failed to delete channel \"{name}\"",
+  "@channels_channelDeleteFailed": {
+    "placeholders": {
+      "name": {
+        "type": "String"
+      }
+    }
+  },
   "channels_channelDeleted": "Channel \"{name}\" deleted",
   "@channels_channelDeleted": {
     "placeholders": {
@@ -1669,6 +1677,30 @@
   "losShowPanelTooltip": "Show LOS panel",
   "losHidePanelTooltip": "Hide LOS panel",
   "losElevationAttribution": "Elevation data: Open-Meteo (CC BY 4.0)",
+  "losLegendRadioHorizon": "Radio horizon",
+  "losLegendLosBeam": "LOS beam",
+  "losLegendTerrain": "Terrain",
+  "losFrequencyLabel": "Frequency",
+  "losFrequencyInfoTooltip": "View calculation details",
+  "losFrequencyDialogTitle": "Radio horizon calculation",
+  "losFrequencyDialogDescription": "Starting from k={baselineK} at {baselineFreq} MHz, the calculation adjusts the k-factor for the current {frequencyMHz} MHz band, which defines the curved radio horizon cap.",
+  "@losFrequencyDialogDescription": {
+    "description": "Explain how the calculation uses the baseline frequency and derived k-factor.",
+    "placeholders": {
+      "baselineK": {
+        "type": "double"
+      },
+      "baselineFreq": {
+        "type": "double"
+      },
+      "frequencyMHz": {
+        "type": "double"
+      },
+      "kFactor": {
+        "type": "double"
+      }
+    }
+  },
   "contacts_pathTrace": "Path Trace",
   "contacts_ping": "Ping",
   "contacts_repeaterPathTrace": "Path trace to repeater",
@@ -1749,4 +1781,4 @@
   "settings_gpxExportShareSubject": "meshcore-open GPX map data export",
   "snrIndicator_nearByRepeaters": "Nearby Repeaters",
   "snrIndicator_lastSeen": "Last seen"
-}
+}