Apply Composer changes: comprehensive API updates, migrations, middleware, and infrastructure improvements

- Add comprehensive database migrations (001-024) for schema evolution
- Enhance API schema with expanded type definitions and resolvers
- Add new middleware: audit logging, rate limiting, MFA enforcement, security, tenant auth
- Implement new services: AI optimization, billing, blockchain, compliance, marketplace
- Add adapter layer for cloud integrations (Cloudflare, Kubernetes, Proxmox, storage)
- Update Crossplane provider with enhanced VM management capabilities
- Add comprehensive test suite for API endpoints and services
- Update frontend components with improved GraphQL subscriptions and real-time updates
- Enhance security configurations and headers (CSP, CORS, etc.)
- Update documentation and configuration files
- Add new CI/CD workflows and validation scripts
- Implement design system improvements and UI enhancements

.github/workflows/validate-configs.yml

@@ -0,0 +1,56 @@
+name: Validate Configuration Files
+
+on:
+  push:
+    branches: [ main, develop ]
+    paths:
+      - 'crossplane-provider-proxmox/**/*.yaml'
+      - 'cloudflare/**/*.yaml'
+      - 'cloudflare/**/*.tf'
+      - 'gitops/**/*.yaml'
+  pull_request:
+    branches: [ main, develop ]
+    paths:
+      - 'crossplane-provider-proxmox/**/*.yaml'
+      - 'cloudflare/**/*.yaml'
+      - 'cloudflare/**/*.tf'
+      - 'gitops/**/*.yaml'
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.11'
+      
+      - name: Install yamllint
+        run: pip install yamllint
+      
+      - name: Validate YAML files
+        run: |
+          find . -name "*.yaml" -o -name "*.yml" | \
+            grep -v node_modules | \
+            grep -v .git | \
+            xargs yamllint -d relaxed || true
+      
+      - name: Validate provider config
+        run: |
+          ./scripts/validate-configs.sh || true
+      
+      - name: Check for placeholders
+        run: |
+          if grep -r "CHANGE_ME\|your-\|TBD\|TODO\|FIXME" \
+            --include="*.yaml" \
+            --include="*.yml" \
+            crossplane-provider-proxmox/examples/ \
+            cloudflare/tunnel-configs/ \
+            gitops/ 2>/dev/null; then
+            echo "⚠️  Found placeholders in configuration files"
+            exit 1
+          fi
+