feat: structured extensions table in customer detail view

4 columns: name, installed version, available update, actions
Actions: install (if not installed), update + remove (if installed)

dashboard/src/App.jsx

@@ -161,6 +161,11 @@ function CustomerDetail({ customerId }) {
     setDeploying(null)
   }
 
+  const remove = async (extId) => {
+    await fetch(`${API}/customers/${customerId}/extensions/${extId}`, { method: 'DELETE' })
+    reload()
+  }
+
   const assign = async (extId) => {
     await fetch(`${API}/customers/${customerId}/extensions`, {
       method: 'POST', headers: { 'Content-Type': 'application/json' },
@@ -180,27 +185,61 @@ function CustomerDetail({ customerId }) {
         </div>
       )}
 
-      <div className="bg-white rounded-lg shadow divide-y">
+      <div className="bg-white rounded-lg shadow overflow-hidden">
-        {(customer.extensions || []).map(e => (
+        <table className="w-full text-right">
-          <div key={e.id} className="p-3 flex items-center justify-between">
+          <thead className="bg-gray-50">
-            <div>
+            <tr>
-              <span className="font-medium">{e.name}</span>
+              <th className="px-4 py-3 text-sm font-medium text-gray-500">שם ההרחבה</th>
-              <span className="text-sm text-gray-500 mr-2">
+              <th className="px-4 py-3 text-sm font-medium text-gray-500">מותקנת</th>
-                {e.installed_version ? `v${e.installed_version}` : 'לא מותקן'}
+              <th className="px-4 py-3 text-sm font-medium text-gray-500">עדכון זמין</th>
-              </span>
+              <th className="px-4 py-3 text-sm font-medium text-gray-500">פעולות</th>
-              {e.installed_version && e.latest_version && e.installed_version !== e.latest_version && (
+            </tr>
-                <span className="text-xs bg-yellow-100 text-yellow-800 px-2 py-0.5 rounded mr-2">
+          </thead>
-                  עדכון: v{e.latest_version}
+          <tbody className="divide-y divide-gray-200">
-                </span>
+            {(customer.extensions || []).map(e => {
-              )}
+              const installed = e.installed_version
-            </div>
+              const hasUpdate = installed && e.latest_version && installed !== e.latest_version
-            <button onClick={() => deploy(e.name, e.latest_version)}
+              return (
-              disabled={deploying === e.name}
+                <tr key={e.id} className="hover:bg-gray-50">
-              className="bg-blue-500 text-white px-3 py-1 rounded text-sm hover:bg-blue-600 disabled:opacity-50">
+                  <td className="px-4 py-3 font-medium">{e.name}</td>
-              {deploying === e.name ? '...' : 'דחוף'}
+                  <td className="px-4 py-3">
-            </button>
+                    {installed
-          </div>
+                      ? <Badge>v{installed}</Badge>
-        ))}
+                      : <span className="text-sm text-red-500">לא מותקן</span>}
+                  </td>
+                  <td className="px-4 py-3">
+                    {hasUpdate
+                      ? <span className="text-sm font-medium text-amber-600">v{e.latest_version}</span>
+                      : <span className="text-sm text-gray-300">—</span>}
+                  </td>
+                  <td className="px-4 py-3">
+                    <div className="flex gap-2 justify-end">
+                      {!installed ? (
+                        <button onClick={() => deploy(e.name, e.latest_version)}
+                          disabled={deploying === e.name}
+                          className="bg-blue-500 text-white px-3 py-1 rounded text-sm hover:bg-blue-600 disabled:opacity-50">
+                          {deploying === e.name ? '...' : 'התקנה'}
+                        </button>
+                      ) : (
+                        <>
+                          <button onClick={() => deploy(e.name, e.latest_version)}
+                            disabled={deploying === e.name}
+                            className="bg-blue-500 text-white px-3 py-1 rounded text-sm hover:bg-blue-600 disabled:opacity-50">
+                            {deploying === e.name ? '...' : 'עדכון'}
+                          </button>
+                          <button onClick={() => remove(e.id)}
+                            className="bg-red-500 text-white px-3 py-1 rounded text-sm hover:bg-red-600">
+                            הסרה
+                          </button>
+                        </>
+                      )}
+                    </div>
+                  </td>
+                </tr>
+              )
+            })}
+          </tbody>
+        </table>
       </div>
 
       {available.length > 0 && (