Rename to ADS-Bit and show receiver IP

- Rename app from "SKY WATCH" to "ADS-Bit" (8-bit wordplay)
- Update page title to "ADS-Bit - Retro Flight Tracker"
- Add receiver IPs to /api/config endpoint
- Display connected receiver IP(s) in status bar
- Update screenshot

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

pixel-view.js

@@ -14,6 +14,7 @@ class PixelADSB {
         this.receiverLat = 0;
         this.receiverLon = 0;
         this.locationName = 'Loading...';
+        this.receivers = [];
 
         // Flight data
         this.flights = new Map();
@@ -543,7 +544,9 @@ class PixelADSB {
             this.receiverLat = data.location?.lat || 0;
             this.receiverLon = data.location?.lon || 0;
             this.locationName = data.location?.name || 'My Location';
+            this.receivers = data.receivers || [];
             console.log(`Config loaded - Theme: ${this.theme}, Location: ${this.locationName} (${this.receiverLat}, ${this.receiverLon})`);
+            console.log(`Receivers: ${this.receivers.join(', ') || 'none'}`);
         } catch (error) {
             console.warn('Could not fetch config, using defaults');
             // Fallback to receiver-location API for backwards compatibility
@@ -666,7 +669,10 @@ class PixelADSB {
 
         this.ws.onopen = () => {
             console.log('WebSocket connected');
-            document.getElementById('connection-status').textContent = 'CONNECTED';
+            const receiverText = this.receivers && this.receivers.length > 0
+                ? `CONNECTED: ${this.receivers.join(', ')}`
+                : 'CONNECTED';
+            document.getElementById('connection-status').textContent = receiverText;
             document.getElementById('connection-status').classList.remove('blink');
             this.reconnectDelay = 1000;
         };