Drop out crappy tests, and improve quality overall

frontend/src/utils/messageParser.ts

@@ -36,3 +36,11 @@ export function formatTime(timestamp: number): string {
   const dateStr = date.toLocaleDateString([], { month: 'short', day: 'numeric' });
   return `${dateStr} ${time}`;
 }
+
+/** Check if a message text contains a mention of the given name in @[name] format. */
+export function messageContainsMention(text: string, name: string | null): boolean {
+  if (!name) return false;
+  const escaped = name.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+  const mentionPattern = new RegExp(`@\\[${escaped}\\]`, 'i');
+  return mentionPattern.test(text);
+}

frontend/src/utils/radioPresets.ts

@@ -0,0 +1,41 @@
+// Radio presets for common LoRa configurations
+export interface RadioPreset {
+  name: string;
+  freq: number;
+  bw: number;
+  sf: number;
+  cr: number;
+}
+
+export const RADIO_PRESETS: RadioPreset[] = [
+  { name: 'USA/Canada', freq: 910.525, bw: 62.5, sf: 7, cr: 5 },
+  { name: 'Australia', freq: 915.8, bw: 250, sf: 10, cr: 5 },
+  { name: 'Australia (narrow)', freq: 916.575, bw: 62.5, sf: 7, cr: 8 },
+  { name: 'Australia SA, WA', freq: 923.125, bw: 62.5, sf: 8, cr: 8 },
+  { name: 'Australia QLD', freq: 923.125, bw: 62.5, sf: 8, cr: 5 },
+  { name: 'New Zealand', freq: 917.375, bw: 250, sf: 11, cr: 5 },
+  { name: 'New Zealand (narrow)', freq: 917.375, bw: 62.5, sf: 7, cr: 5 },
+  { name: 'EU/UK/Switzerland Long Range', freq: 869.525, bw: 250, sf: 11, cr: 5 },
+  { name: 'EU/UK/Switzerland Medium Range', freq: 869.525, bw: 250, sf: 10, cr: 5 },
+  { name: 'EU/UK/Switzerland Narrow', freq: 869.618, bw: 62.5, sf: 8, cr: 8 },
+  { name: 'Czech Republic (Narrow)', freq: 869.432, bw: 62.5, sf: 7, cr: 5 },
+  { name: 'EU 433MHz Long Range', freq: 433.65, bw: 250, sf: 11, cr: 5 },
+  { name: 'Portugal 433MHz', freq: 433.375, bw: 62.5, sf: 9, cr: 6 },
+  { name: 'Portugal 868MHz', freq: 869.618, bw: 62.5, sf: 7, cr: 6 },
+  { name: 'Vietnam', freq: 920.25, bw: 250, sf: 11, cr: 5 },
+];
+
+/** Detect which preset matches the given radio parameters, or 'custom' if none match. */
+export function detectPreset(freq: number, bw: number, sf: number, cr: number): string {
+  for (const preset of RADIO_PRESETS) {
+    if (preset.freq === freq && preset.bw === bw && preset.sf === sf && preset.cr === cr) {
+      return preset.name;
+    }
+  }
+  return 'custom';
+}
+
+/** Find a preset by exact name. */
+export function findPreset(name: string): RadioPreset | undefined {
+  return RADIO_PRESETS.find((p) => p.name === name);
+}