fix(ui): Address Greptile review feedback on proxy switcher

- Fix removeConnection to use setProxyBaseUrl(null) instead of
  setProxyBaseUrl(defaultConn.url), consistent with switchConnection
- Replace hardcoded "Admin" role for remote proxies with actual role
  fetched from /user/info endpoint on the remote proxy

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/litellm-dashboard/src/app/(dashboard)/hooks/useAuthorized.ts

@@ -1,11 +1,11 @@
 "use client";
 
-import { getProxyBaseUrl } from "@/components/networking";
+import { getProxyBaseUrl, getGlobalLitellmHeaderName } from "@/components/networking";
 import { clearTokenCookies, getCookie } from "@/utils/cookieUtils";
 import { checkTokenValidity, decodeToken } from "@/utils/jwtUtils";
 import { useProxyConnection } from "@/contexts/ProxyConnectionContext";
 import { useRouter } from "next/navigation";
-import { useEffect, useMemo } from "react";
+import { useEffect, useMemo, useState } from "react";
 import { useUIConfig } from "./uiConfig/useUIConfig";
 
 function formatUserRole(userRole: string) {
@@ -52,6 +52,42 @@ const useAuthorized = () => {
   const isRemoteAuthorized = isRemoteProxy && !!activeConnection?.apiKey;
   const isAuthorized = isRemoteAuthorized || (isTokenValid && !uiConfig?.admin_ui_disabled);
 
+  // Fetch actual user info from remote proxy to get the real role
+  const [remoteUserInfo, setRemoteUserInfo] = useState<{
+    user_role: string | null;
+    user_id: string | null;
+    user_email: string | null;
+  }>({ user_role: null, user_id: null, user_email: null });
+
+  useEffect(() => {
+    if (!isRemoteProxy || !activeConnection?.apiKey) return;
+
+    const fetchRemoteUserInfo = async () => {
+      try {
+        const url = `${getProxyBaseUrl()}/user/info`;
+        const response = await fetch(url, {
+          method: "GET",
+          headers: {
+            [getGlobalLitellmHeaderName()]: `Bearer ${activeConnection.apiKey}`,
+            "Content-Type": "application/json",
+          },
+        });
+        if (response.ok) {
+          const data = await response.json();
+          setRemoteUserInfo({
+            user_role: data?.user_role ?? null,
+            user_id: data?.user_id ?? null,
+            user_email: data?.user_email ?? null,
+          });
+        }
+      } catch {
+        // Silently fail — role will fall back to "Admin"
+      }
+    };
+
+    fetchRemoteUserInfo();
+  }, [isRemoteProxy, activeConnection?.apiKey]); // eslint-disable-line react-hooks/exhaustive-deps
+
   // Single useEffect for all redirect logic
   useEffect(() => {
     if (isLoading) return;
@@ -74,9 +110,11 @@ const useAuthorized = () => {
     isAuthorized,
     token: isAuthorized ? token : null,
     accessToken: effectiveAccessToken,
-    userId: isRemoteProxy ? null : (decoded?.user_id ?? null),
-    userEmail: isRemoteProxy ? null : (decoded?.user_email ?? null),
-    userRole: isRemoteProxy ? "Admin" : formatUserRole(decoded?.user_role),
+    userId: isRemoteProxy ? (remoteUserInfo.user_id ?? null) : (decoded?.user_id ?? null),
+    userEmail: isRemoteProxy ? (remoteUserInfo.user_email ?? null) : (decoded?.user_email ?? null),
+    userRole: isRemoteProxy
+      ? formatUserRole(remoteUserInfo.user_role ?? "proxy_admin")
+      : formatUserRole(decoded?.user_role),
     premiumUser: decoded?.premium_user ?? null,
     disabledPersonalKeyCreation: decoded?.disabled_non_admin_personal_key_creation ?? null,
     showSSOBanner: isRemoteProxy ? false : decoded?.login_method === "username_password",

ui/litellm-dashboard/src/contexts/ProxyConnectionContext.tsx

@@ -160,7 +160,8 @@ export const ProxyConnectionProvider: React.FC<ProxyConnectionProviderProps> = (
       const defaultConn = connections.find((c) => c.isDefault);
       if (defaultConn) {
         saveActiveId(defaultConn.id);
-        setProxyBaseUrl(defaultConn.url);
+        // Clear the override so getProxyBaseUrl() falls back to window.location.origin
+        setProxyBaseUrl(null);
         window.location.reload();
       }
     }