diff --git a/frontend/admin/scripts/run-playwright-auth-e2e.ps1 b/frontend/admin/scripts/run-playwright-auth-e2e.ps1
index 3247278..9388d05 100644
--- a/frontend/admin/scripts/run-playwright-auth-e2e.ps1
+++ b/frontend/admin/scripts/run-playwright-auth-e2e.ps1
@@ -160,32 +160,30 @@ $backendBaseUrl = "http://127.0.0.1:$selectedBackendPort"
 $frontendBaseUrl = "http://127.0.0.1:$selectedFrontendPort"
 
 try {
-  Push-Location $projectRoot
+  $serverSrcPath = Join-Path $projectRoot 'cmd\server'
   try {
     $env:GOCACHE = $goCacheDir
-    $env:GOMODCACHE = $goModCacheDir
-    $env:GOPATH = $goPathDir
-    go build -o $serverExePath ./cmd/server
+    go build -o $serverExePath $serverSrcPath
     if ($LASTEXITCODE -ne 0) {
       throw 'server build failed'
     }
   } finally {
     Pop-Location
     Remove-Item Env:GOCACHE -ErrorAction SilentlyContinue
-    Remove-Item Env:GOMODCACHE -ErrorAction SilentlyContinue
-    Remove-Item Env:GOPATH -ErrorAction SilentlyContinue
   }
 
-  $env:UMS_SERVER_PORT = "$selectedBackendPort"
-  $env:UMS_DATABASE_SQLITE_PATH = $e2eDbPath
-$env:UMS_SERVER_MODE = 'debug'
-$env:UMS_PASSWORD_RESET_SITE_URL = $frontendBaseUrl
-$env:UMS_CORS_ALLOWED_ORIGINS = "$frontendBaseUrl,http://localhost:$selectedFrontendPort"
-  $env:UMS_LOGGING_OUTPUT = 'stdout'
-  $env:UMS_EMAIL_HOST = '127.0.0.1'
-  $env:UMS_EMAIL_PORT = "$selectedSMTPPort"
-  $env:UMS_EMAIL_FROM_EMAIL = 'noreply@test.local'
-  $env:UMS_EMAIL_FROM_NAME = 'UMS E2E'
+  $env:SERVER_PORT = "$selectedBackendPort"
+  $env:DATABASE_DBNAME = $e2eDbPath
+$env:SERVER_MODE = 'debug'
+$env:SERVER_FRONTEND_URL = $frontendBaseUrl
+$env:CORS_ALLOWED_ORIGINS = "$frontendBaseUrl,http://localhost:$selectedFrontendPort"
+  $env:LOGGING_OUTPUT = 'stdout'
+  $env:EMAIL_HOST = '127.0.0.1'
+  $env:EMAIL_PORT = "$selectedSMTPPort"
+  $env:EMAIL_FROM_EMAIL = 'noreply@test.local'
+  $env:EMAIL_FROM_NAME = 'UMS E2E'
+  # JWT secret must be at least 32 bytes
+  $env:JWT_SECRET = 'e2e-test-jwt-secret-at-least-32-bytes-long-for-security'
 
   Write-Host "playwright e2e backend: $backendBaseUrl"
   Write-Host "playwright e2e frontend: $frontendBaseUrl"
@@ -280,18 +278,21 @@ $env:UMS_CORS_ALLOWED_ORIGINS = "$frontendBaseUrl,http://localhost:$selectedFron
   Remove-ManagedProcessLogs $backendHandle
   Stop-ManagedProcess $smtpHandle
   Remove-ManagedProcessLogs $smtpHandle
-  Remove-Item Env:UMS_SERVER_PORT -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_DATABASE_SQLITE_PATH -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_SERVER_MODE -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_PASSWORD_RESET_SITE_URL -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_CORS_ALLOWED_ORIGINS -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_LOGGING_OUTPUT -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_EMAIL_HOST -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_EMAIL_PORT -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_EMAIL_FROM_EMAIL -ErrorAction SilentlyContinue
-  Remove-Item Env:UMS_EMAIL_FROM_NAME -ErrorAction SilentlyContinue
+  Remove-Item Env:SERVER_PORT -ErrorAction SilentlyContinue
+  Remove-Item Env:DATABASE_DBNAME -ErrorAction SilentlyContinue
+  Remove-Item Env:SERVER_MODE -ErrorAction SilentlyContinue
+  Remove-Item Env:SERVER_FRONTEND_URL -ErrorAction SilentlyContinue
+  Remove-Item Env:CORS_ALLOWED_ORIGINS -ErrorAction SilentlyContinue
+  Remove-Item Env:LOGGING_OUTPUT -ErrorAction SilentlyContinue
+  Remove-Item Env:EMAIL_HOST -ErrorAction SilentlyContinue
+  Remove-Item Env:EMAIL_PORT -ErrorAction SilentlyContinue
+  Remove-Item Env:EMAIL_FROM_EMAIL -ErrorAction SilentlyContinue
+  Remove-Item Env:EMAIL_FROM_NAME -ErrorAction SilentlyContinue
   Remove-Item Env:VITE_API_PROXY_TARGET -ErrorAction SilentlyContinue
   Remove-Item Env:VITE_API_BASE_URL -ErrorAction SilentlyContinue
+  Remove-Item Env:JWT_SECRET -ErrorAction SilentlyContinue
+  Remove-Item Env:DEFAULT_ADMIN_EMAIL -ErrorAction SilentlyContinue
+  Remove-Item Env:DEFAULT_ADMIN_PASSWORD -ErrorAction SilentlyContinue
   Remove-Item $serverExePath -Force -ErrorAction SilentlyContinue
   Remove-Item $e2eRunRoot -Recurse -Force -ErrorAction SilentlyContinue
 }
diff --git a/frontend/admin/src/components/common/ui-consistency.test.tsx b/frontend/admin/src/components/common/ui-consistency.test.tsx
index fd88781..9c8520b 100644
--- a/frontend/admin/src/components/common/ui-consistency.test.tsx
+++ b/frontend/admin/src/components/common/ui-consistency.test.tsx
@@ -86,6 +86,10 @@ describe('PageHeader Component', () => {
 // =============================================================================
 
 describe('Form Validation Consistency', () => {
+  beforeEach(() => {
+    vi.spyOn(window, 'alert').mockImplementation(() => {})
+  })
+
   it('validates required fields', async () => {
     const user = userEvent.setup()
     const handleSubmit = vi.fn()