fix: integrate hardened APT security boundary

styles.css

@@ -532,7 +532,47 @@ button:disabled {
     to { transform: rotate(360deg); }
 }
 
-/* Update Modal */
+/* Bridge pairing */
+.section-help {
+    color: var(--text-secondary);
+    font-size: 13px;
+    margin: 0 0 14px;
+}
+
+.pairing-section .paired {
+    color: var(--success);
+    font-weight: 600;
+}
+
+.pairing-section .unpaired {
+    color: var(--warning);
+    font-weight: 600;
+}
+
+.pairing-secret-row {
+    margin: 14px 0;
+}
+
+.pairing-secret-row label,
+.pairing-secret-row small {
+    display: block;
+    color: var(--text-secondary);
+    margin-bottom: 6px;
+}
+
+.pairing-secret-row input {
+    width: 100%;
+    box-sizing: border-box;
+    font-family: monospace;
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    border: 1px solid var(--border);
+    border-radius: 4px;
+    padding: 10px;
+    margin-bottom: 6px;
+}
+
+/* Update notification */
 .update-modal-overlay {
     position: fixed;
     top: 0;
@@ -595,55 +635,7 @@ button:disabled {
 .update-modal-message {
     font-size: 14px;
     color: var(--text-primary);
-    margin: 0 0 12px 0;
-}
-
-.update-modal-notes {
-    font-size: 13px;
-    color: var(--text-secondary);
-    line-height: 1.5;
-    white-space: pre-wrap;
-    max-height: 200px;
-    overflow-y: auto;
-    padding: 12px;
-    background: var(--bg-primary);
-    border-radius: 4px;
-    border: 1px solid var(--border);
-}
-
-.update-modal-notes:empty {
-    display: none;
-}
-
-.update-progress-container {
-    margin-top: 16px;
-    display: flex;
-    align-items: center;
-    gap: 12px;
-}
-
-.update-progress-track {
-    flex: 1;
-    height: 8px;
-    background: var(--bg-primary);
-    border-radius: 4px;
-    overflow: hidden;
-    border: 1px solid var(--border);
-}
-
-.update-progress-fill {
-    height: 100%;
-    background: var(--accent-primary);
-    border-radius: 4px;
-    transition: width 0.3s ease;
-}
-
-.update-progress-text {
-    font-size: 12px;
-    font-weight: bold;
-    color: var(--text-secondary);
-    min-width: 36px;
-    text-align: right;
+    margin: 0;
 }
 
 .update-modal-footer {