fix: 更新当前界面，支持多公帐号切换

app/static/auth.js

@@ -0,0 +1,71 @@
+const $ = (id) => document.getElementById(id);
+
+function setStatus(msg, danger = false) {
+  const el = $("status");
+  if (!el) return;
+  el.style.color = danger ? "#b42318" : "#0f5f3d";
+  el.textContent = msg;
+}
+
+function setLoading(button, loading, idleText, loadingText) {
+  if (!button) return;
+  button.disabled = loading;
+  button.textContent = loading ? loadingText : idleText;
+}
+
+async function postJSON(url, body) {
+  const res = await fetch(url, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify(body),
+  });
+  const data = await res.json();
+  if (!res.ok) throw new Error(data.detail || "请求失败");
+  return data;
+}
+
+function nextPath() {
+  const nxt = (window.__NEXT_PATH__ || "/").trim();
+  if (!nxt.startsWith("/")) return "/";
+  return nxt;
+}
+
+function fields() {
+  return {
+    username: ($("username") && $("username").value.trim()) || "",
+    password: ($("password") && $("password").value) || "",
+    remember_me: Boolean($("rememberMe") && $("rememberMe").checked),
+  };
+}
+
+async function authAction(url, button, idleText, loadingText, okMessage) {
+  setLoading(button, true, idleText, loadingText);
+  try {
+    const data = await postJSON(url, fields());
+    if (!data.ok) {
+      setStatus(data.detail || "操作失败", true);
+      return;
+    }
+    setStatus(okMessage);
+    window.location.href = nextPath();
+  } catch (e) {
+    setStatus(e.message || "请求异常", true);
+  } finally {
+    setLoading(button, false, idleText, loadingText);
+  }
+}
+
+const loginBtn = $("loginBtn");
+const registerBtn = $("registerBtn");
+
+if (loginBtn) {
+  loginBtn.addEventListener("click", async () => {
+    await authAction("/api/auth/login", loginBtn, "登录", "登录中...", "登录成功，正在跳转...");
+  });
+}
+
+if (registerBtn) {
+  registerBtn.addEventListener("click", async () => {
+    await authAction("/api/auth/register", registerBtn, "注册", "注册中...", "注册成功，正在跳转...");
+  });
+}