🏢 Corporate Number API — Auto-verify business partners via NTA registry

New

• ✓ Corporate number lookup column — Auto-fetch corporate number and registry info from NTA Web-API by company name
• ✓ Address filtering — Text input like 'Tokyo Shinagawa-ku' for prefecture/city filtering
• ✓ Corporate Number List template — Manage corporate numbers, registered names, entity types, and addresses in one table
• ✓ Same-name company disambiguation — Exact name matching after stripping entity suffixes + address filtering for accurate identification