feat(GatewayAutocomplete): add selected gateway info and free gateway warning to enhance user feedback

frontend/src/FilterManager.jsx

@@ -428,6 +428,37 @@ function GatewayAutocomplete({ label, value, onChange, gateways = [], required =
 
   const selectedGateway = gateways.find(g => g.name === value);
 
+  const selectedGatewayInfo =
+    value && selectedGateway && !isOpen ? (
+      <div className="mt-2">
+        <div className="d-flex align-items-center gap-2 p-2 bg-light rounded">
+          <span className="avatar avatar-xs bg-primary-lt">
+            {selectedGateway.country ? countryToFlag(selectedGateway.country) : <IconServer size={14} />}
+          </span>
+          <div className="flex-grow-1">
+            <div className="fw-bold">
+              <code>{selectedGateway.name}</code>
+              {selectedGateway.comment && <span className="text-muted ms-2">({selectedGateway.comment})</span>}
+            </div>
+            <div className="text-muted small">
+              {[selectedGateway.serverDns].filter(Boolean).join(' · ')}
+            </div>
+          </div>
+          {selectedGateway.primary && <span className="badge bg-green-lt text-green">Основной</span>}
+        </div>
+      </div>
+    ) : null;
+
+  const freeGatewayWarning =
+    value && !selectedGateway && !isOpen ? (
+      <div className="mt-2">
+        <div className="d-flex align-items-center gap-2 p-2 bg-warning-lt rounded">
+          <IconAlertTriangle size={16} className="text-warning" />
+          <div className="text-muted small">Gateway "{value}" — свободный ввод</div>
+        </div>
+      </div>
+    ) : null;
+
   return (
     <div className="mb-3" ref={containerRef}>
       <label className={`form-label ${required ? 'required' : ''}`}>{label}</label>
@@ -517,36 +548,9 @@ function GatewayAutocomplete({ label, value, onChange, gateways = [], required =
           </div>
         )}
       </div>
-      </div>
-      {value && selectedGateway && !isOpen && (
-        <div className="mt-2">
-          <div className="d-flex align-items-center gap-2 p-2 bg-light rounded">
-            <span className="avatar avatar-xs bg-primary-lt">
-              {selectedGateway.country ? countryToFlag(selectedGateway.country) : <IconServer size={14} />}
-            </span>
-            <div className="flex-grow-1">
-              <div className="fw-bold">
-                <code>{selectedGateway.name}</code>
-                {selectedGateway.comment && <span className="text-muted ms-2">({selectedGateway.comment})</span>}
-              </div>
-              <div className="text-muted small">
-                {[selectedGateway.serverDns].filter(Boolean).join(' · ')}
-              </div>
-            </div>
-            {selectedGateway.primary && <span className="badge bg-green-lt text-green">Основной</span>}
-          </div>
-        </div>
-      )}
 
-      {/* Предупреждение если gateway не в списке */}
-      {value && !selectedGateway && !isOpen && (
-        <div className="mt-2">
-          <div className="d-flex align-items-center gap-2 p-2 bg-warning-lt rounded">
-            <IconAlertTriangle size={16} className="text-warning" />
-            <div className="text-muted small">Gateway "{value}" — свободный ввод</div>
-          </div>
-        </div>
-      )}
+      {selectedGatewayInfo}
+      {freeGatewayWarning}
     </div>
   );
 }