Revert "Implement admin back-pass flow and guarded admin actions"

This reverts commit 5595bfd3b1.

wwwroot/js/app-auth-handlers.js

@@ -1,11 +1,6 @@
 import { api } from "./api.js";
 import { t } from "./i18n.js";
-import {
-    state,
-    clearUserState,
-    clearSavedUsername,
-    setSavedUsername,
-} from "./state.js";
+import { state, clearUserState, setSavedUsername } from "./state.js";
 import { $, toast } from "./dom.js";
 import {
     handleAuthError,
@@ -144,38 +139,24 @@ function setupLogoutHandler() {
     const logoutBtn = $("logout");
     if (!logoutBtn) return;
 
-    const clearAuthFormFields = () => {
-        [
-            "login-username",
-            "login-password",
-            "register-username",
-            "register-password",
-            "register-displayName",
-            "register-adminkey",
-        ].forEach((id) => {
-            const input = $(id);
-            if (input) input.value = "";
-        });
-
-        ["login-consent", "register-consent"].forEach((id) => {
-            const box = $(id);
-            if (box) box.checked = false;
-        });
-    };
-
     logoutBtn.addEventListener("click", async (e) => {
         e.preventDefault();
+        const lastUser = state.me?.username;
         try {
             await api.logout();
         } catch (err) {
             toast(err.message, true);
         }
         clearUserState();
-        clearSavedUsername();
         state.isAuthenticated = false;
-        setAuthMode("login");
         setAuthUI(false);
-        clearAuthFormFields();
+        if (lastUser) {
+            setSavedUsername(lastUser);
+            const loginUser = $("login-username");
+            if (loginUser) loginUser.value = lastUser;
+            const loginPass = $("login-password");
+            if (loginPass) loginPass.value = "";
+        }
     });
 }