Roadmap: Parser fixture expansion

[cloud7-dev]

Week 1-2 and Week 7-8 roadmap item. Add more synthetic parser fixtures for Korean settlement, transaction lists, and table-like screenshots. Acceptance: each fixture has expected rows and validation issue codes, npm run smoke passes, and no real screenshots are committed.

[cloud7-dev]

v0.2.1 expanded the parser benchmark to 6 synthetic fixtures covering table, merged-header table, Kakao settlement, partial/fee settlement, transaction list, and refund/missing-year transaction cases. Keeping this issue open for broader benchmark expansion and expected CSV/XLSX snapshots.