Fix health check timing and improve admin login

- Increase health check wait times in Gitea Actions workflow
- Add additional main page accessibility check with longer timeout
- Remove basic auth middleware to use custom admin login only
- Custom admin login at /manage route provides better UX than browser basic auth

This should resolve the 'Main page is not accessible' issue and provide a nicer admin login experience.

.gitea/workflows/ci-cd-with-gitea-vars.yml

@@ -142,7 +142,7 @@ jobs:
       - name: Wait for containers to be ready
         run: |
           echo "⏳ Waiting for containers to be ready..."
-          sleep 30
+          sleep 45
           
           # Check if all containers are running
           echo "📊 Checking container status..."
@@ -150,12 +150,23 @@ jobs:
           
           # Wait for application container to be healthy
           echo "🏥 Waiting for application container to be healthy..."
-          for i in {1..30}; do
+          for i in {1..60}; do
             if docker exec portfolio-app curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
               echo "✅ Application container is healthy!"
               break
             fi
-            echo "⏳ Waiting for application container... ($i/30)"
+            echo "⏳ Waiting for application container... ($i/60)"
+            sleep 5
+          done
+          
+          # Additional wait for main page to be accessible
+          echo "🌐 Waiting for main page to be accessible..."
+          for i in {1..30}; do
+            if curl -f http://localhost:3000/ > /dev/null 2>&1; then
+              echo "✅ Main page is accessible!"
+              break
+            fi
+            echo "⏳ Waiting for main page... ($i/30)"
             sleep 3
           done