- Add explicit anchor text mode support in AnchorTextConfig
- Support tier-specific anchor text terms at job-level (tier1, tier2, tier3, tier4_plus)
- Support tier-level explicit anchor text with 'terms' array
- Update content injection to prioritize explicit terms when mode is 'explicit'
- Add validation for explicit mode requiring term lists
- Update JOB_FIELD_REFERENCE.md with explicit mode documentation and examples
- Add comprehensive unit and integration tests for explicit anchor text
Includes multi-cloud storage migration script and related database changes.
