Derive issue_prefix from first 3 letters of company name with deterministic suffixes on collision. Migration rebuilds existing prefixes, reassigns issue numbers, and adds unique indexes. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Derive issue_prefix from first 3 letters of company name with deterministic suffixes on collision. Migration rebuilds existing prefixes, reassigns issue numbers, and adds unique indexes. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>