fix(ts-client): keep Babel override consistent with lockfile

Problem

TypeScript client CI on current main fails before tests because npm re-resolves the self-referencing @babel/core override beyond the version captured by the lockfile.

Actual Behavior

After the repository setup command uv sync, change into clients/typescript. Both the Node 22.12 and Node 24 CI jobs then fail at:

npm ci

The error begins with:

Invalid: lock file's @babel/core@8.0.1 does not satisfy @babel/core@8.0.5

and then reports the newer Babel dependency graph missing from the lock.

Expected Behavior

A clean install from the committed package manifest and lockfile succeeds reproducibly on every supported Node version.

Acceptance Criteria

• npm ci succeeds from a clean clients/typescript checkout on Node 22.12 and Node 24.
• The fix retains the currently tested Babel 8.0.1 dependency graph; dependency upgrades remain in their dedicated Dependabot PRs.
• No generated client or runtime behavior changes.

Start in clients/typescript with its package manifest and lockfile, then inspect the @babel/core override and the recorded 8.0.1 dependency graph. Run npm ci from a clean checkout on Node 22.12 and Node 24; done means both installs succeed without changing generated clients or runtime behavior.