feat: comprehensive Wazuh integration with Docker CI/CD and expanded security operations

Major enhancements:
- Added Docker image building and publishing to GitHub Container Registry with multi-platform support (linux/amd64, linux/arm64)
- Expanded from basic alert retrieval to comprehensive security operations with 14 MCP tools covering:
  * Vulnerability management (agent vulnerability summaries, critical vulnerabilities)
  * Agent monitoring (running agents, processes, network ports)
  * System statistics (weekly stats, remoted stats, log collector stats)
  * Log analysis (manager logs, error logs with search capabilities)
  * Cluster management (health checks, node listing)
- Updated environment configuration to support both Wazuh Manager API and Wazuh Indexer with proper SSL handling
- Enhanced documentation with detailed use cases, Docker deployment options, and comprehensive tool descriptions
- Upgraded wazuh-client dependency to v0.1.1 for expanded API capabilities
- Added agent ID formatting and validation for consistent three-digit zero-padded identifiers

This transforms the server from a simple alert fetcher into a full-featured security operations platform for AI-assisted Wazuh management.

.github/workflows/release.yml

@@ -7,6 +7,7 @@ on:
 
 permissions:
   contents: write # Needed to create releases
+  packages: write # Needed to push to GitHub Container Registry
 
 jobs:
   create_release:
@@ -76,3 +77,41 @@ jobs:
           asset_name: mcp-server-wazuh-${{ matrix.asset_name_suffix }}
           asset_content_type: application/octet-stream
 
+  build_docker:
+    name: Build and Push Docker Image
+    needs: create_release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/gbrigandi/mcp-server-wazuh
+          tags: |
+            type=ref,event=tag
+            type=raw,value=latest
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+