fix(mini): preserve taskbar and restore login

apps/mini/src/App.tsx

@@ -307,13 +307,27 @@ function MoreView({ workspace, openAction }: ViewProps) {
 
 function Login({ onLogin }: { onLogin: (session: ApiSession) => void }) {
   const [server, setServer] = useState('http://localhost:9150')
-  const [email, setEmail] = useState('')
-  const [password, setPassword] = useState('')
+  const [email, setEmail] = useState('demo@senlin.ai')
+  const [password, setPassword] = useState('password123')
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState('')
+
+  async function submitLogin() {
+    if (loading) return
+    setLoading(true)
+    setError('')
+    try {
+      onLogin(await login(server, email.trim(), password))
+    } catch (requestError) {
+      setError(errorMessage(requestError))
+    } finally {
+      setLoading(false)
+    }
+  }
+
   return (
     <div className="mini-login">
-      <div className="login-note">
+      <form className="login-note" onSubmit={(event) => { event.preventDefault(); void submitLogin() }}>
         <img src="/senlinai-icon.svg" alt="" />
         <Title heading={3}>森林AI Mini</Title>
         <Text type="secondary">停靠在屏幕一侧，随时记录与推进项目</Text>
@@ -321,9 +335,9 @@ function Login({ onLogin }: { onLogin: (session: ApiSession) => void }) {
         <label>邮箱<Input value={email} onChange={setEmail} /></label>
         <label>密码<Input.Password value={password} onChange={setPassword} /></label>
         {error ? <Alert type="error" content={error} /> : null}
-        <Button type="primary" long loading={loading} onClick={async () => { setLoading(true); setError(''); try { onLogin(await login(server, email, password)) } catch (requestError) { setError(errorMessage(requestError)) } finally { setLoading(false) } }}>连接工作台</Button>
+        <Button type="primary" htmlType="submit" long loading={loading}>连接工作台</Button>
         <small>v1.0 完整版</small>
-      </div>
+      </form>
     </div>
   )
 }

apps/mini/src/api.ts

@@ -192,7 +192,9 @@ function useSessionBase(session: ApiSession) {
 }
 
 function normalizeBaseUrl(value: string) {
-  return value.trim().replace(/\/+$/, '')
+  const normalized = value.trim().replace(/\/+$/, '')
+  if (!normalized || /^https?:\/\//i.test(normalized)) return normalized
+  return `http://${normalized}`
 }
 
 function slugify(value: string) {