feat: 主题切换 + 浅色模式适配，SFTP/批量命令/Webhook/仪表盘全面升级

backend/src/test/java/com/sshmanager/service/ConnectionServiceTest.java

@@ -42,6 +42,12 @@ class ConnectionServiceTest {
     @Mock
     private SshBootstrapService sshBootstrapService;
 
+    @Mock
+    private WebhookService webhookService;
+
+    @Mock
+    private QuickConnectionRegistry quickConnectionRegistry;
+
     @InjectMocks
     private ConnectionService connectionService;
 

backend/src/test/java/com/sshmanager/service/SftpServiceTest.java

@@ -28,17 +28,21 @@ class SftpServiceTest {
     }
 
     @Test
-    void testPasswordAuthenticationRequiredWithValidConnection() {
+    void testQuickConnectWithEmptyPasswordUsesKeyboardInteractive() {
+        // Quick-connect connections have empty password — should NOT throw
+        // (they fall back to keyboard-interactive auth)
+        Connection conn = new Connection();
+        conn.setHost("127.0.0.1");
+        conn.setPort(22);
+        conn.setUsername("test");
+        conn.setAuthType(Connection.AuthType.PASSWORD);
+        // This will try to connect to 127.0.0.1 and fail with connection refused,
+        // but it should NOT fail with "password is empty" anymore
         Exception exception = assertThrows(Exception.class, () -> {
-            Connection conn = new Connection();
-            conn.setHost("127.0.0.1");
-            conn.setPort(22);
-            conn.setUsername("test");
-            conn.setAuthType(Connection.AuthType.PASSWORD);
-            sftpService.connect(conn, "", null, null);
+            sftpService.connect(conn, "__quick__", null, null);
         });
-        assertTrue(exception.getMessage().contains("Password is required") || 
-                   exception instanceof IllegalArgumentException);
+        // Should fail with connection/timeout, not password validation
+        assertFalse(exception.getMessage().contains("password is empty"));
     }
 
     @Test