feat: implement comprehensive admin dashboard for server management and user oversight

frontend/src/hooks/useAccounts.tsx

@@ -27,6 +27,7 @@ export interface ServerConfig {
   token?: string;
   serverSteamId?: string;
   enabled: boolean;
+  isAdmin?: boolean;
 }
 
 interface AccountsContextType {
@@ -51,6 +52,13 @@ interface AccountsContextType {
   getCommunityAccounts: () => Promise<any[]>;
   getServerUsers: () => Promise<any[]>;
   refreshAccounts: (showLoading?: boolean) => Promise<void>;
+
+  // Admin Methods
+  adminGetStats: () => Promise<any>;
+  adminGetUsers: () => Promise<any[]>;
+  adminDeleteUser: (userId: string) => Promise<void>;
+  adminGetAccounts: () => Promise<any[]>;
+  adminRemoveAccount: (steamId: string) => Promise<void>;
 }
 
 const AccountsContext = createContext<AccountsContextType | undefined>(undefined);
@@ -174,11 +182,19 @@ export const AccountsProvider: React.FC<{ children: React.ReactNode }> = ({ chil
     return await (window as any).electronAPI.getServerUsers();
   };
 
+  // --- Admin Methods ---
+  const adminGetStats = async () => (window as any).electronAPI.adminGetStats();
+  const adminGetUsers = async () => (window as any).electronAPI.adminGetUsers();
+  const adminDeleteUser = async (userId: string) => (window as any).electronAPI.adminDeleteUser(userId);
+  const adminGetAccounts = async () => (window as any).electronAPI.adminGetAccounts();
+  const adminRemoveAccount = async (steamId: string) => (window as any).electronAPI.adminRemoveAccount(steamId);
+
   return (
     <AccountsContext.Provider value={{ 
       accounts, serverConfig, isLoading, isSyncing, addAccount, updateAccount, deleteAccount, 
       switchAccount, openSteamAppLogin, openSteamLogin, updateServerConfig, loginToServer, 
-      getCommunityAccounts, getServerUsers, shareAccountWithUser, revokeAccountAccess, revokeAllAccountAccess, syncNow, refreshAccounts 
+      getCommunityAccounts, getServerUsers, shareAccountWithUser, revokeAccountAccess, revokeAllAccountAccess, syncNow, refreshAccounts,
+      adminGetStats, adminGetUsers, adminDeleteUser, adminGetAccounts, adminRemoveAccount
     }}>
       {children}
     </AccountsContext.Provider>