Fix Type Errors and Build Failures Across Core Packages

This pull request resolves several build failures triggered by inconsistent type definitions, missing libraries, and mismatched Undici types. The updates include cleaning up TypeScript configuration, normalizing type roots, and adding the missing dependencies required for stable builds.

Key fixes include correcting the FSWatcher test type, adding proper uuid and @types/uuid dependencies, registering Node types in all relevant tsconfig files, and downgrading @types/minimatch to a compatible version. The PR also updates package configs in the vscode-ide-companion package and addresses Header and Dispatcher type issues that were breaking the api-server build.