- Added POST /api/v1/customers/{id}/link-economic endpoint
- Allows manually setting economic_customer_number for customers without CVR
- Useful for vTiger customers that can't auto-match via CVR or name
- Updates last_synced_at timestamp when linking
- Created VERSION file with current version
- Health endpoints now read version from VERSION file instead of hardcoded
- Fixes issue where health check showed wrong version
- main.py /health and /api/v1/system/health now show correct version