Proposal: align TypeScript versions across packages

[luojiyin1987]

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.

[reconbot]

Fixed in #3144 it was just an oversight. The current build process is per package so it unfortunately has to be a devdep of each package. It should be released in a few days.