docs: adopt the radar icon + v0.5.3 (smart-glasses detection)

Swaps the ◉ glyph for the new radar logo (nav, footer, favicon, OG card),
bumps to v0.5.3, and notes smart-glasses (Meta/Snap/Vuzix) in the Commercial source.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/index.html

@@ -15,6 +15,7 @@
 <meta name="twitter:card" content="summary_large_image">
 <meta name="twitter:image" content="https://overwatch.netslum.io/og.png">
 <meta name="theme-color" content="#07070d">
+<link rel="icon" type="image/svg+xml" href="logo.svg">
 
 <link rel="preconnect" href="https://fonts.googleapis.com">
 <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
@@ -33,7 +34,7 @@
 <nav class="nav">
   <div class="container nav-inner">
     <a class="nav-brand" href="#">
-      <span class="nav-mark" aria-hidden="true">◉</span>
+      <img class="nav-logo" src="logo.svg" width="30" height="30" alt="" aria-hidden="true">
       OVERWATCH
     </a>
     <div class="nav-links">
@@ -55,7 +56,7 @@
   <div class="container hero-inner">
     <div class="hero-eyebrow">
       <span class="dot dot-pulse"></span>
-      v0.5.2 · Android · passive
+      v0.5.3 · Android · passive
     </div>
     <h1 class="hero-title">
       <span class="display-wordmark">OVERWATCH</span>
@@ -249,10 +250,10 @@
         <div class="bento-icon">🏠</div>
         <h3>Commercial</h3>
         <p>
-          Nearby consumer smart-home gear (Nest, Ring, Echo, hidden cams) as a
-          secondary situational signal, riding the BLE + WiFi scans.
-          Score-capped at ORANGE so a cluster of doorbells never reads as
-          ALPR-grade certainty.
+          Nearby consumer smart-home gear (Nest, Ring, Echo, hidden cams) and
+          <strong>smart glasses (Meta, Snap, Vuzix)</strong> as a secondary
+          situational signal, riding the BLE + WiFi scans. Score-capped at
+          ORANGE so a cluster of doorbells never reads as ALPR-grade certainty.
         </p>
       </article>
     </div>
@@ -392,7 +393,7 @@
           <ul>
             <li>Grab the latest debug-signed APK from
               <a href="https://github.com/KaraZajac/OVERWATCH/releases/latest">Releases</a>
-              (currently <strong>v0.5.2</strong>).</li>
+              (currently <strong>v0.5.3</strong>).</li>
           </ul>
         </div>
         <div class="tl-col tl-active">
@@ -423,7 +424,7 @@
   <div class="container footer-inner">
     <div class="footer-col">
       <div class="footer-brand">
-        <span class="nav-mark" aria-hidden="true">◉</span>
+        <img class="nav-logo" src="logo.svg" width="26" height="26" alt="" aria-hidden="true">
         OVERWATCH
       </div>
       <p class="footer-tag">
@@ -462,7 +463,7 @@
       transmit, probe, jam, or interfere with any device or network.
     </p>
     <p class="footer-meta">
-      v0.5.2 · <a href="https://github.com/KaraZajac/OVERWATCH">github.com/KaraZajac/OVERWATCH</a>
+      v0.5.3 · <a href="https://github.com/KaraZajac/OVERWATCH">github.com/KaraZajac/OVERWATCH</a>
     </p>
   </div>
 </footer>