feat: initialize HEC IA Wiki with Docker setup, build process, and content structure

- Add .dockerignore t
- Create Gitea Action to build and publish image
- Update Dockerfile to include build steps and health check
- Revise README.md
- Modify config.ts for site-specific settings
- Enhance content.config.ts to define collections for events, workshops, news, and technical articles

.gitea/workflows/build-image.yml

@@ -0,0 +1,46 @@
+name: Build and Push Docker Image - HEC IA Wiki
+
+on:
+  push:
+    branches:
+      - main
+      - master
+
+env:
+  REGISTRY: "gitea.vorpax.dev"
+  IMAGE_NAME: "vorpax_admin/hecia-wiki"
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Gitea Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+
+      - name: Extract metadata (tags, labels)
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=sha,prefix=
+            type=raw,value=latest,enable=${{ gitea.ref == format('refs/heads/{0}', 'main') || gitea.ref == format('refs/heads/{0}', 'master') }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}