celestial-difficulty-scoring

Integrate cross-tab UX for target list management in observation data component. Add context menu actions for list membership, implement efficient list membership queries, and update UI with list indicators. Expand ORM methods to handle batch queries for lists.

Add Target List Management UI and related tests

Clean up debug logging from OpenNGCProvider and CatalogService to simplify code.

fix: Solar System scoring, table display corruption, and tab switching

Update SCORING_IMPROVEMENT_PLAN.md and COMPLETED_PHASES.md to reflect completion of Phase 9.1 with pre-curated object lists. Transition workflow from AstroPlanner Excel to built-in Messier, Caldwell, Solar System lists, enhancing user experience with direct selection and scoring capabilities.