Fix tenant event form package selector so it no longer renders empty-value options, handles loading/empty

states, and pulls data from the authenticated /api/v1/tenant/packages endpoint.
    (resources/js/admin/pages/EventFormPage.tsx, resources/js/admin/api.ts)
  - Harden tenant-admin auth flow: prevent PKCE state loss, scope out StrictMode double-processing, add SPA
    routes for /event-admin/login and /event-admin/logout, and tighten token/session clearing semantics (resources/js/admin/auth/{context,tokens}.tsx, resources/js/admin/pages/{AuthCallbackPage,LogoutPage}.tsx,
    resources/js/admin/router.tsx, routes/web.php)

resources/js/admin/auth/context.tsx

@@ -4,11 +4,11 @@ import {
   clearOAuthSession,
   clearTokens,
   completeOAuthCallback,
-  isAuthError,
   loadTokens,
   registerAuthFailureHandler,
   startOAuthFlow,
 } from './tokens';
+import { ADMIN_LOGIN_PATH } from '../constants';
 
 export type AuthStatus = 'loading' | 'authenticated' | 'unauthenticated';
 
@@ -58,18 +58,24 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
       setUser(profile);
       setStatus('authenticated');
     } catch (error) {
-      if (isAuthError(error)) {
-        handleAuthFailure();
-      } else {
-        console.error('[Auth] Failed to refresh profile', error);
-      }
+      console.error('[Auth] Failed to refresh profile', error);
+      handleAuthFailure();
       throw error;
     }
   }, [handleAuthFailure]);
 
   React.useEffect(() => {
+    const searchParams = new URLSearchParams(window.location.search);
+    if (searchParams.has('reset-auth') || window.location.pathname === ADMIN_LOGIN_PATH) {
+      clearTokens();
+      clearOAuthSession();
+      setUser(null);
+      setStatus('unauthenticated');
+    }
+
     const tokens = loadTokens();
     if (!tokens) {
+      setUser(null);
       setStatus('unauthenticated');
       return;
     }
@@ -77,7 +83,7 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
     refreshProfile().catch(() => {
       // refreshProfile already handled failures.
     });
-  }, [refreshProfile]);
+  }, [handleAuthFailure, refreshProfile]);
 
   const login = React.useCallback((redirectPath?: string) => {
     const target = redirectPath ?? window.location.pathname + window.location.search;