Adds and expands wiki/corporations/*.md entries so make economy-db
Phase 2 gate passes end-to-end without the 21 raw-commodity / system
coverage failures. Unblocks Phase 2 demand simulation.
Existing corporations (15): tag additions to baektu-mining-alliance,
bergkraft-antriebswerke, bifrost-marmor, gate-corporation,
hanyang-precision, jeju-lattice, nordmark-skog, norrland-woodcraft,
salud-alliance, shetland-wool, societe-chimique, stalownia-kowalski,
svanevann-waters, thrds, tongyeong-drive.
New corporations (6): arbour-aggregates, earth-standard-group,
rush-mining, scapa-flow-industries, sede-chemical-works,
threshold-fuel-syndicate.
systems.db regenerated — coverage validation now passes.
Cross-team scope note: wiki/ is copy-team territory per CLAUDE.md.
Writes here are accepted by lead for this sprint (maintenance sweep,
pragmatic fix); copy-team review follow-up filed as #884.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>