Complete rewrite of the package from plain JavaScript to TypeScript,
compiled to dual CJS/ESM via tsup. The NREL SPA C source is recompiled
to WASM with Emscripten using SINGLE_FILE base64 inlining, eliminating
bundler path-resolution issues.
Changes:
- Rewrite JS wrapper in TypeScript with full type definitions
- Recompile WASM with -O3 -flto, 1MB fixed memory, no filesystem
- Add input validation with descriptive error messages
- Add spaFormatted() for HH:MM:SS time strings
- Add formatTime() utility and init() for eager WASM loading
- Add SPA_ZA, SPA_ZA_INC, SPA_ZA_RTS, SPA_ALL function code exports
- Dual CJS/ESM output via tsup with proper exports map
- Test suite: 68 ESM + 13 CJS assertions
- 100-scenario validation suite across 7 categories
- GitHub Wiki with 8 documentation pages
- CI workflow: Node 20/22/24 matrix, typecheck, pack-check
- NREL attribution in LICENSE and README per their license terms
- Minimum Node.js 20
