feat(gui): inline peer rename

Click on peer name in the table to edit it inline.
Enter to save, Escape to cancel, blur also saves.
Saved via POST /peers/<id>/rename without page reload.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

gui/templates/index.html

@@ -30,7 +30,13 @@
       <tbody>
         {% for p in peers %}
         <tr class="{{ 'row-disabled' if not p.enabled else '' }}">
-          <td><span class="peer-name">{{ p.name }}</span></td>
+          <td>
+            {% if p.id %}
+            <span class="peer-name editable" onclick="startRename(this, {{ p.id }}, '{{ csrf_token() }}')" title="Нажмите чтобы переименовать">{{ p.name }}</span>
+            {% else %}
+            <span class="peer-name">{{ p.name }}</span>
+            {% endif %}
+          </td>
           <td>
             <span class="badge {{ p.status }}" title="{{ p.handshake_ago }}">
               <i class="dot"></i>
@@ -90,4 +96,36 @@
     </table>
   </div>
 </div>
+
+<script>
+function startRename(el, peerId, csrf) {
+  if (el.querySelector('input')) return;
+  const oldName = el.textContent.trim();
+  const inp = document.createElement('input');
+  inp.className = 'rename-input';
+  inp.value = oldName;
+  el.textContent = '';
+  el.appendChild(inp);
+  inp.focus();
+  inp.select();
+
+  function save() {
+    const name = inp.value.trim();
+    if (!name || name === oldName) { el.textContent = oldName; return; }
+    fetch(`/peers/${peerId}/rename`, {
+      method: 'POST',
+      headers: {'Content-Type': 'application/x-www-form-urlencoded'},
+      body: `name=${encodeURIComponent(name)}&csrf_token=${encodeURIComponent(csrf)}`
+    }).then(r => {
+      el.textContent = r.ok ? name : oldName;
+    }).catch(() => { el.textContent = oldName; });
+  }
+
+  inp.addEventListener('keydown', e => {
+    if (e.key === 'Enter') { e.preventDefault(); save(); }
+    if (e.key === 'Escape') { el.textContent = oldName; }
+  });
+  inp.addEventListener('blur', save);
+}
+</script>
 {% endblock %}