Resolve conflicts with #1234: keep redirect: 'manual' on both DATEX
fetches and keep main's 30 s TARKTEE_FETCH_TIMEOUT_MS. Drop this
branch's 15 s constant and its import, which auto-merged into a
duplicate export. Keep both sets of Estonia tests and drop the 15 s
claim from the changelog fragment.
Co-Authored-By: Claude Opus 5.5 <[email protected]>