Resolve typecheck issues in monorepo and CI pipeline

[PunGrumpy]

This pull request resolves two key TypeScript compilation errors that were failing the CI/CD pipeline in the Typecheck job.

Problems Identified

1. Missing Node Types: The typechecking compiler (tsc) was failing with the error Cannot find type definition file for 'node'. This occurred because "types": ["node"] is declared in the compiler options of workspace packages (like locket- api and playground), but @types/node was missing from the project dependencies.
2. Missing Workspace Dependency Build: The playground app depends on the locket-api workspace package. When typechecking the playground, tsc expects the type declarations for locket-api (located in its dist/ directory) to be generated. However, the CI workflow only built the repository during the Test matrix job, leaving the Typecheck job without compiled packages.

Solutions Implemented

1. Added Workspace DevDependency: Added @types/node to the root package.json devDependencies and updated the lockfile (bun.lock) so Node. js type definitions are globally available in the monorepo.
2. Updated CI Workflow: Modified the Build step conditional in .github/workflows/code-quality.yml to build the workspace packages for any matrix job that is not Lint (i.e. Test and Typecheck)