fix(phase26): skip netwatch AP scan when clients connected (BUG-01)

templates/settings.html

@@ -134,6 +134,35 @@
         </div>
     </div>
 
+    {# ── In-car access ────────────────────────────────────────────────── #}
+    <div class="card shadow-sm mb-3" id="in-car-access-card">
+        <div class="card-header py-2">
+            <p class="text-primary m-0 fw-bold small">In-car access</p>
+        </div>
+        <div class="card-body py-3">
+            <div id="in-car-hotspot-info" hidden>
+                <p class="mb-2 fw-semibold">Your phone can reach the Pi at:</p>
+                <div class="d-flex align-items-center gap-2 mb-3">
+                    <code class="fs-5" id="hotspot-url">http://10.42.0.1</code>
+                    <button class="btn btn-outline-secondary btn-sm" id="copy-hotspot-url" type="button" title="Copy">
+                        <i class="fas fa-copy"></i>
+                    </button>
+                </div>
+                <div class="alert alert-warning py-2 mb-0 small">
+                    <i class="fas fa-exclamation-triangle me-1"></i>
+                    If the page doesn't load, try <strong>disabling cellular/mobile data</strong> on your phone.
+                    Phones often keep using cell data when WiFi has no internet, blocking access to the Pi.
+                </div>
+            </div>
+            <div id="in-car-wifi-info" hidden>
+                <p class="mb-1 small text-muted">The Pi is connected to WiFi. Open <code>http://yaris.local</code> from any device on the same network.</p>
+            </div>
+            <div id="in-car-disconnected-info" hidden>
+                <p class="mb-0 small text-muted">Waiting for network…</p>
+            </div>
+        </div>
+    </div>
+
     {# ── Phone hotspot ───────────────────────────────────────────────── #}
     <div class="card shadow-sm mb-3">
         <div class="card-header py-2">