🐛 fix(connect): 修复首次启动数据库连接偶发失败

frontend/src/utils/startupReadiness.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest';
+
+import { getConnectionWorkbenchState } from './startupReadiness';
+
+describe('startup readiness helpers', () => {
+  it('blocks sidebar interactions before local store hydration completes', () => {
+    expect(getConnectionWorkbenchState(false, false)).toEqual({
+      ready: false,
+      message: '正在加载本地配置...',
+    });
+  });
+
+  it('keeps sidebar blocked until initial global proxy sync finishes', () => {
+    expect(getConnectionWorkbenchState(true, false)).toEqual({
+      ready: false,
+      message: '正在同步全局代理配置...',
+    });
+  });
+
+  it('unblocks sidebar after startup configuration is fully applied', () => {
+    expect(getConnectionWorkbenchState(true, true)).toEqual({
+      ready: true,
+      message: '',
+    });
+  });
+});

frontend/src/utils/startupReadiness.ts

@@ -0,0 +1,26 @@
+export interface ConnectionWorkbenchState {
+  ready: boolean;
+  message: string;
+}
+
+export function getConnectionWorkbenchState(
+  isStoreHydrated: boolean,
+  hasAppliedInitialGlobalProxy: boolean
+): ConnectionWorkbenchState {
+  if (!isStoreHydrated) {
+    return {
+      ready: false,
+      message: '正在加载本地配置...',
+    };
+  }
+  if (!hasAppliedInitialGlobalProxy) {
+    return {
+      ready: false,
+      message: '正在同步全局代理配置...',
+    };
+  }
+  return {
+    ready: true,
+    message: '',
+  };
+}