Fix clock filtering and contact lookup behavior bugs

frontend/src/hooks/useRepeaterMode.ts

@@ -37,6 +37,7 @@ export function formatTelemetry(telemetry: TelemetryResponse): string {
     `Telemetry`,
     `Battery Voltage: ${telemetry.battery_volts.toFixed(3)}V`,
     `Uptime: ${formatDuration(telemetry.uptime_seconds)}`,
+    ...(telemetry.clock_output ? [`Clock: ${telemetry.clock_output}`] : []),
     `TX Airtime: ${formatDuration(telemetry.airtime_seconds)}`,
     `RX Airtime: ${formatDuration(telemetry.rx_airtime_seconds)}`,
     '',

frontend/src/test/useRepeaterMode.test.ts

@@ -78,6 +78,7 @@ describe('formatTelemetry', () => {
       full_events: 0,
       neighbors: [],
       acl: [],
+      clock_output: null,
     };
 
     const result = formatTelemetry(telemetry);
@@ -119,6 +120,7 @@ describe('formatTelemetry', () => {
       full_events: 0,
       neighbors: [],
       acl: [],
+      clock_output: null,
     };
 
     const result = formatTelemetry(telemetry);

frontend/src/types.ts

@@ -197,6 +197,7 @@ export interface TelemetryResponse {
   full_events: number;
   neighbors: NeighborInfo[];
   acl: AclEntry[];
+  clock_output: string | null;
 }
 
 export interface CommandResponse {