fix: scale indicator, logo crop, gateway LAN IP, setup spacing

webapp:
- Scale indicator: replace plain green dot with ⚖️ emoji + colored
  status badge (green/amber/grey/red); icon fades out when disconnected;
  tap shows a toast with device name + battery level
- Logo images: crop excess transparent padding from logo.png and
  logo_icon.png so content fills the frame at small display sizes
- style.css: reworked .scale-status-indicator CSS for emoji+badge

kiosk:
- SetupActivity: use device's real LAN IP for scale_gateway_url
  (was hardcoded 127.0.0.1 — only worked if server and kiosk run on
  the same machine); added getDeviceLanIp() helper (prefers wlan/eth)
- activity_setup.xml: reduce welcome step padding/margins so step 1
  fits on screen without scrolling; text sizes slightly reduced
- activity_setup.xml: fix feature bullet 'Bilancia Bluetooth via
  Gateway app' → 'Bilancia BLE integrata (nessuna app esterna)'
- strings.xml (en + it): rewrite all wizard_gateway_* strings to
  reflect integrated BLE service instead of external gateway APK
- ic_logo.png: regenerated at all densities from cropped source

assets/css/style.css

@@ -260,26 +260,46 @@ body {
 }
 
 /* ── Smart Scale status indicator ───────────────────────────────────── */
-/* Same shape as .header-btn but non-interactive — shows colored dot */
+/* Scale emoji with a small colored status dot in the lower-right corner */
 .scale-status-indicator {
-    cursor: default;
+    cursor: pointer;
+}
+.scale-icon-wrapper {
+    position: relative;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 28px;
+    height: 28px;
+}
+.scale-icon-emoji {
+    font-size: 20px;
+    line-height: 1;
+    transition: filter 0.3s, opacity 0.3s;
+}
+.scale-status-dot {
+    position: absolute;
+    bottom: 1px;
+    right: 0px;
+    width: 9px;
+    height: 9px;
+    border-radius: 50%;
+    border: 1.5px solid #0f172a;
+    background: #475569;
+    transition: background 0.4s, box-shadow 0.4s;
     pointer-events: none;
 }
-.scale-dot {
-    width: 12px;
-    height: 12px;
-    border-radius: 50%;
-    background: rgba(255,255,255,0.3);
-    transition: background 0.4s, box-shadow 0.4s;
-    flex-shrink: 0;
-}
-.scale-status-connected    .scale-dot { background: #22c55e; box-shadow: 0 0 6px #22c55eaa; }
-.scale-status-searching    .scale-dot { background: #f59e0b; animation: scaleStatusPulse 1.4s infinite; }
-.scale-status-disconnected .scale-dot { background: rgba(255,255,255,0.25); }
-.scale-status-error        .scale-dot { background: #ef4444; box-shadow: 0 0 4px #ef4444aa; }
+.scale-status-connected    .scale-status-dot { background: #22c55e; box-shadow: 0 0 5px #22c55eaa; }
+.scale-status-connected    .scale-icon-emoji  { filter: none; opacity: 1; }
+.scale-status-searching    .scale-status-dot { background: #f59e0b; animation: scaleStatusPulse 1.4s infinite; }
+.scale-status-searching    .scale-icon-emoji  { filter: none; opacity: 0.85; }
+.scale-status-disconnected .scale-status-dot { background: #475569; }
+.scale-status-disconnected .scale-icon-emoji  { filter: grayscale(0.5); opacity: 0.55; }
+.scale-status-error        .scale-status-dot { background: #ef4444; box-shadow: 0 0 5px #ef4444aa; }
+.scale-status-error        .scale-icon-emoji  { filter: none; opacity: 1; }
 @keyframes scaleStatusPulse {
-    0%, 100% { box-shadow: 0 0 4px #f59e0b88; }
-    50%       { box-shadow: 0 0 10px #f59e0bcc; }
+    0%, 100% { box-shadow: 0 0 3px #f59e0b88; }
+    50%       { box-shadow: 0 0 9px #f59e0bcc; }
 }
 
 /* ── Scale read button (add/use forms) ──────────────────────────────── */

assets/js/app.js

@@ -805,6 +805,23 @@ function _scaleUpdateStatus(state) {
     el.title = labels[state] || '';
 }
 
+/**
+ * Show a brief toast with the current scale connection status when the icon is tapped.
+ */
+function _scaleShowInfo() {
+    const state = _scaleConnected ? 'connected' : 'disconnected';
+    const msgs = {
+        connected:    `⚖️ ${t('scale.status_connected')}${_scaleDevice ? ': ' + _scaleDevice : ''}${_scaleBattery != null ? ' 🔋' + _scaleBattery + '%' : ''}`,
+        searching:    `⚖️ ${t('scale.status_searching')}`,
+        disconnected: `⚖️ ${t('scale.status_disconnected')}`,
+        error:        `⚖️ ${t('scale.status_error')}`,
+    };
+    const el = document.getElementById('scale-status-indicator');
+    const cls = el ? [...el.classList].find(c => c.startsWith('scale-status-') && c !== 'scale-status-indicator') : null;
+    const key = cls ? cls.replace('scale-status-', '') : state;
+    showToast(msgs[key] || msgs[state], key === 'connected' ? 'success' : 'info');
+}
+
 /**
  * Show the scale reading modal and wait for a stable weight, then populate the input.
  * @param {string} targetInputId  — ID of the <input> to fill