Release v2.13.0 - WiFi client display in AP detail drawer

Features:
- Display connected clients for access points in detail drawer
- Real-time client updates via SSE streaming
- Client cards show MAC, vendor, RSSI, probed SSIDs, and last seen
- Count badge in Connected Clients header

Other changes:
- Updated aircraft database
- CSS and template refinements

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

static/css/index.css

@@ -5,8 +5,8 @@
 }
 
 :root {
-    --font-sans: 'JetBrains Mono', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
-    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
+    --font-sans: 'Space Mono', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+    --font-mono: 'Space Mono', 'Fira Code', 'Consolas', monospace;
     /* Tactical dark palette */
     --bg-primary: #0a0c10;
     --bg-secondary: #0f1218;
@@ -3808,6 +3808,86 @@ header h1 .tagline {
     text-transform: uppercase;
 }
 
+.wifi-client-count-badge {
+    display: inline-block;
+    font-size: 10px;
+    padding: 1px 6px;
+    background: var(--accent-cyan);
+    color: var(--bg-primary);
+    border-radius: 10px;
+    font-weight: 600;
+    margin-left: 6px;
+    vertical-align: middle;
+}
+
+.wifi-client-list {
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+    max-height: 200px;
+    overflow-y: auto;
+}
+
+.wifi-client-card {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 8px 10px;
+    background: var(--bg-secondary);
+    border: 1px solid var(--border-color);
+    border-radius: 4px;
+}
+
+.wifi-client-identity {
+    display: flex;
+    flex-direction: column;
+    gap: 2px;
+}
+
+.wifi-client-mac {
+    font-family: monospace;
+    font-size: 12px;
+    color: var(--text-primary);
+}
+
+.wifi-client-vendor {
+    font-size: 10px;
+    color: var(--text-dim);
+}
+
+.wifi-client-probes {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 4px;
+    margin-top: 4px;
+}
+
+.wifi-client-probe-badge {
+    font-size: 9px;
+    padding: 2px 6px;
+    background: var(--bg-tertiary);
+    border-radius: 3px;
+    color: var(--text-secondary);
+}
+
+.wifi-client-signal {
+    display: flex;
+    flex-direction: column;
+    align-items: flex-end;
+    gap: 2px;
+}
+
+.wifi-client-rssi {
+    font-size: 12px;
+    font-weight: 500;
+    color: var(--text-primary);
+}
+
+.wifi-client-lastseen {
+    font-size: 9px;
+    color: var(--text-dim);
+}
+
 /* WiFi Responsive */
 @media (max-width: 1400px) {
     .wifi-main-content {
@@ -6019,7 +6099,7 @@ body::before {
 }
 
 .module-header {
-    font-family: 'Orbitron', 'JetBrains Mono', monospace;
+    font-family: 'Orbitron', 'Space Mono', monospace;
     font-size: 10px;
     font-weight: 600;
     color: var(--accent-cyan);
@@ -6197,7 +6277,7 @@ body::before {
 /* Listening Mode Selector Buttons */
 .radio-mode-btn {
     padding: 12px 24px;
-    font-family: 'Orbitron', 'JetBrains Mono', monospace;
+    font-family: 'Orbitron', 'Space Mono', monospace;
     font-size: 13px;
     font-weight: 600;
     text-transform: uppercase;