Optimize CheckExternalDeps to group refs by project and open each
external DB only once, checking all capabilities in a single query.
Before: If 10 issues depend on external:gastown:cap1, we opened
gastown's DB 10 times.
After: We open each external project's DB once, query for all
capabilities needed from that project, then close.
Also added deduplication in filterByExternalDeps to collect all
unique refs before checking, avoiding redundant checks for the
same ref across multiple issues.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
GetReadyWork now lazily resolves external dependencies at query time:
- External refs (external:project:capability) checked against target DB
- Issues with unsatisfied external deps are filtered from ready list
- Satisfaction = closed issue with provides:<capability> label in target
Key changes:
- Remove FK constraint on depends_on_id to allow external refs
- Add migration 025 to drop FK and recreate views
- Filter external deps in GetReadyWork, not in blocked_issues_cache
- Add application-level validation for orphaned local deps
- Comprehensive tests for external dep resolution
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
