Parses the H2 sections (In progress / Next / Later) into roadmap_items rows.
Maps In-progress → beta (actively built, tested with pilots) and Next/Later
→ exploring with a target hint. Idempotent: skips entirely if the table is
already populated, so admin edits are never overwritten.
content/roadmap.md stays in the repo as the seed source. Once admin starts
editing via /admin, the DB is the source of truth.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
