Make line endings deterministic across macOS, Windows, and Linux while preserving the native checkout format required by Windows launchers.
Pin the tested application runtime and Node type baseline, add a shared startup preflight, and keep independently published packages on their existing compatibility ranges.
Align local scripts, pull request validation, complete package builds, dependency metadata, and contributor documentation around the same Node and pnpm contract. The root test command now covers every tested workspace package while a focused Core command remains available for local iteration.
Restructure the repository into a pnpm workspace under packages/ (core, webui, runtime). Move source files for core and webui into packages/*, add package manifests for @snowluma/core and @snowluma/runtime, and remove the old launcher package.json. Update root package.json to be a monorepo controller (scripts delegate to pnpm filters, set packageManager and Node engine). Configure build outputs to emit into the repo-root dist/ (vite config changes) so the existing release pipeline continues to work. Add .npmrc with mirrors, expand .gitignore for monorepo layout, add tsconfig base and package-level tsconfigs, and add vitest config for the core package. Adjust injector native search paths and update tests import paths to the new package layout. Small CI/workflow comment added to clarify build behavior and README updated with monorepo structure and common commands.
DrSmoothl