Address code review: Extract magic numbers to named constants

Co-authored-by: MrAlders0n <55921894+MrAlders0n@users.noreply.github.com>

Author: Copilot

content/wardrive.js

@@ -15,6 +15,8 @@ const GPS_FRESHNESS_BUFFER_MS = 5000;          // Buffer time for GPS freshness
 const GPS_ACCURACY_THRESHOLD_M = 100;          // Maximum acceptable GPS accuracy in meters
 const MESHMAPPER_DELAY_MS = 7000;              // Delay MeshMapper API call by 7 seconds
 const COOLDOWN_MS = 7000;                      // Cooldown period for manual ping and auto toggle
+const STATUS_UPDATE_DELAY_MS = 100;            // Brief delay to ensure "Ping sent" status is visible
+const MAP_REFRESH_DELAY_MS = 1000;             // Delay after API post to ensure backend updated
 const WARDROVE_KEY     = new Uint8Array([
   0x40, 0x76, 0xC3, 0x15, 0xC1, 0xEF, 0x38, 0x5F,
   0xA9, 0x3F, 0x06, 0x60, 0x27, 0x32, 0x0F, 0xE5
@@ -464,7 +466,6 @@ async function sendPing(manual = false) {
     // Start cooldown period after successful ping
     startCooldown();
 
-    const nowStr = new Date().toLocaleString();
     setStatus(manual ? "Ping sent" : "Auto ping sent", "text-emerald-300");
 
     // Schedule MeshMapper API call with 7-second delay (non-blocking)
@@ -478,12 +479,12 @@ async function sendPing(manual = false) {
       if (state.connection) {
         setStatus("Waiting to post to API", "text-sky-300");
       }
-    }, 100); // Small delay to ensure "Ping sent" is visible first
+    }, STATUS_UPDATE_DELAY_MS);
 
     state.meshMapperTimer = setTimeout(async () => {
       await postToMeshMapperAPI(lat, lon);
 
-      // Update map 1 second after API post to ensure backend updated
+      // Update map after API post to ensure backend updated
       setTimeout(() => {
         if (accuracy && accuracy < GPS_ACCURACY_THRESHOLD_M) {
           scheduleCoverageRefresh(lat, lon);
@@ -493,10 +494,12 @@ async function sendPing(manual = false) {
         if (state.connection) {
           setStatus("Idle", "text-slate-300");
         }
-      }, 1000);
+      }, MAP_REFRESH_DELAY_MS);
 
       state.meshMapperTimer = null;
     }, MESHMAPPER_DELAY_MS);
+    
+    const nowStr = new Date().toLocaleString();
     if (lastPingEl) lastPingEl.textContent = `${nowStr} — ${payload}`;
 
     // Session log