Refactor platform detection and error reporting logic into dedicated,
testable functions. This improves code organization and enables better
error handling for unsupported platforms and missing platform packages.
- Add SUPPORTED_PLATFORMS constant with platform labels
- Extract getPlatformKey() utility function
- Extract isSupportedPlatform() validation function
- Extract reportUnsupportedPlatform() error reporting function
- Extract reportMissingPlatformPackage() error reporting function
- Update main() to use new functions for clearer error handling
The package.json has "type": "module" but bin/hapi.js uses CommonJS
require() syntax. Renaming to .cjs forces Node.js to treat it as
CommonJS regardless of the package type setting.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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