Add debug logging and config endpoint

- Add console.log in oauth-authentik.ts to debug config
- Add /api/debug-config endpoint to verify env vars
- Helps diagnose missing serverUrl issue

nuxt4-app/server/utils/oauth-authentik.ts

@@ -54,6 +54,14 @@ export function oauthAuthentikEventHandler({
   return eventHandler(async (event: H3Event) => {
     const runtimeConfig = useRuntimeConfig(event)
 
+    // Debug: Log configuration
+    console.log('OAuth Authentik Config:', {
+      clientId: runtimeConfig.oauth.authentik.clientId ? '***' : 'MISSING',
+      clientSecret: runtimeConfig.oauth.authentik.clientSecret ? '***' : 'MISSING',
+      serverUrl: runtimeConfig.oauth.authentik.serverUrl,
+      redirectURL: runtimeConfig.oauth.authentik.redirectURL,
+    })
+
     // Merge config with defaults
     const authentikConfig = defu(config, {
       clientId: runtimeConfig.oauth.authentik.clientId,