chore(deps-dev): pin @types/node to 24 to match the Node 24 runtime

[Medformatik]

Summary

@types/node had drifted to ^25.9.3 while the project targets Node 24 LTS (.nvmrc = 24, engines.node >= 24). This pins all 21 workspace packages back to ^24.13.2 so the type definitions match the runtime (check-types green; frozen-lockfile install clean).

Supersedes #76, which bumped @types/node toward 26 — further from the runtime.

[Medformatik]

Heads-up: this branch now conflicts with main (mergeable=CONFLICTING) after several dependency PRs and a batch of maintenance changes landed. The intent (aligning @types/node with the Node 24 runtime) is reasonable — it just needs a rebase onto current main to resolve the conflicts before it can be merged.

[Medformatik]

Applied directly to main in 421d3db — all 22 workspace manifests pinned to @types/node@^24.13.2 (resolves to 24.13.2), pnpm check-types green against the Node-24 types. The dependabot config already ignores @types/node major bumps, so it won't drift back to 25. Closing this as superseded — thanks for flagging it.