The `bd update --type` command was rejecting custom types (like role, agent,
rig) even when configured via types.custom. The issue was that type validation
used IsValid() which only checks the 5 core types, ignoring custom types.
Changes:
- CLI (update.go): Use IsValidWithCustom() with types from config
- Storage (validators.go): Add validateIssueTypeWithCustom() function
- Storage (queries.go, transaction.go): Fetch and pass custom types
The error message now dynamically shows all valid types including custom ones.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>