Remove macOS and Apple container references

- Remove Containerfile and .containerignore (Apple container specific)
- Update package.json to remove Apple container scripts
- Replace macOS-specific build scripts with Docker-focused versions
- Update README to prioritize Docker over Apple container
- Update DEVELOPMENT.md to remove macOS-first approach
- Update demo script to remove Apple container references
- Update workflow to remove Containerfile path triggers
- Simplify project to be Docker-first for cross-platform compatibility

.github/workflows/build-container.yml

@@ -8,7 +8,6 @@ on:
       - 'public/**'
       - 'package*.json'
       - 'Dockerfile'
-      - 'Containerfile'
   pull_request:
     branches: [ main ]
     paths:
@@ -16,7 +15,6 @@ on:
       - 'public/**'
       - 'package*.json'
       - 'Dockerfile'
-      - 'Containerfile'
 
 env:
   IMAGE_NAME: jmespath-playground