Convert SigPlot to Typescript#20

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mrecachinas wants to merge 26 commits intospectriclabs:mainfrom

mrecachinas:typescript

Commits on Mar 8, 2026

build: modernize tooling — esbuild, ESLint 9, Prettier, GitHub Actions

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build: add Vite dev server and Vitest test runner

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ci: enable test job now that Vitest is configured

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refactor: convert all source files from CommonJS IIFE to ES modules

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build: remove Grunt, Karma, and all legacy tooling

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test: migrate QUnit unit tests to Vitest API

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chore: remove migrated QUnit test files and HTML runners

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Commits on Mar 9, 2026

Commits on Mar 10, 2026

Commits on Mar 20, 2026

Replace prettier/eslint with Biome and tsc with tsgo

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Commits on Mar 21, 2026