Proposal: align TypeScript versions across packages #3133
Description
Align TypeScript versions across the monorepo (root and packages) so lerna run build and editor tooling use the same compiler version.
Motivation
Root package.json uses typescript@5.7.2 while many packages pin typescript@5.2.2. lerna run build executes tsc in each package using the local devDependency, which can lead to inconsistent diagnostics and potentially different .d.ts output between packages and root tooling.
Pitch
Update all package devDependencies to match the root TypeScript version (or remove per-package TypeScript devDependencies so the root version is used). If there is a compatibility reason to keep 5.2.2, documenting that rationale would also help.