don't make typescript a runtime dependency

[arlyon]

Typescript is not used at runtime so don't bundle it. Saves 23MB from your bundle size.

[jazzberry-ai]

Bug Report

Name	Severity	Example test case	Description
TypeScript not in PATH during typecheck	High	Run npm run typecheck in the /root/utils directory.	After moving typescript from dependencies to devDependencies, the tsc command is no longer available in the PATH when running the typecheck script. This prevents type checking from being performed correctly. The CI/CD pipeline will also fail since it uses pnpm typecheck which internally calls the tsc command.

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