Add MCP build workflow

.gitea/workflows/mcp-build.yaml

@@ -0,0 +1,19 @@
+name: Build MCP Services
+on: [push]
+
+jobs:
+  build-mcp-filesystem:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build and push MCP Filesystem
+        uses: docker/build-push-action@v4
+        with:
+          context: ./tools-mcp/mcp-filesystem
+          push: true
+          tags: 192.168.8.250:5000/agentic-os/mcp-filesystem:latest