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

.dockerignore

@@ -1,8 +1,27 @@
-# Ignore Astro files
-*.astro
+# Development files
+.git/
+.gitignore
+.vscode/
+.DS_Store
 
-# Ignore node_modules directory
+# Cache and temp files
+.astro/
 node_modules/
 
-# Ignore build output
-dist/
+# Build output (will be rebuilt in Docker)
+dist/
+
+# Environment files
+.env
+.env.*
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Documentation (optional - comment if needed in image)
+# *.md
+# !README.md