Refactor repository to match fz-Model template ✅

Summary:

Successfully refactored the fz-cast3m repository to match the structure and conventions of the fz-Model template repository. All changes have been completed, tested, and validated.

Completed Tasks:

• Rename and reorganize directories and files
  • Rename samples/ to examples/Cast3m/
  • Rename .fz/calculators/localhost.json to .fz/calculators/localhost_Cast3m.json
• Add missing template files
  • Add LICENSE file (BSD 3-Clause)
  • Create tests/test_plugin.py for Cast3m
  • Create .github/workflows/ci.yml for CI/CD
  • Create example_usage.ipynb Jupyter notebook
• Update documentation
  • Update README.md to match template style
  • Update .gitignore to match template
  • Move extra documentation files to docs/ directory
  • Fix paths in documentation files
  • Fix YAML indentation in CI workflow
• Validate structure
  • Run tests locally (all passed)
  • Verify structure matches fz-Model template
  • All JSON files validated
  • Code review completed and issues fixed
  • Security scan passed (0 alerts)
  • Fixed regex syntax error in Cast3m.sh

Files Changed:

• Added: LICENSE, tests/test_plugin.py, .github/workflows/ci.yml, example_usage.ipynb, docs/EXAMPLE.md, docs/PORTING_SUMMARY.md
• Renamed: samples/ → examples/Cast3m/, localhost.json → localhost_Cast3m.json
• Modified: README.md, .gitignore, docs/EXAMPLE.md, docs/PORTING_SUMMARY.md, .github/workflows/ci.yml, .fz/calculators/Cast3m.sh

Template Compliance:

✅ All required template files present
✅ Directory structure matches template
✅ Naming conventions follow template
✅ CI/CD workflow configured
✅ Test suite implemented and passing
✅ Documentation updated and consistent
✅ Shell script syntax validated

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.