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