- Introduced support for catalog exercise hints in various functions, including `_build_stage_ai_context`, `try_suggest_ai_stage_step`, and `build_gap_fill_goal_text`, improving the contextual information available for AI suggestions.
- Added a new function `catalog_exercise_hints_block` to consolidate hints retrieval from the catalog context.
- Updated the `PlanningIntentContext` to include catalog exercise hints, ensuring they are part of the API output.
- Implemented tests to verify the inclusion of catalog exercise hints in goal text generation and rematch logic.
- Incremented version numbers and updated changelog to reflect these enhancements.
- Introduced new catalog context handling in planning prompt functions, allowing for improved integration of planning variables.
- Added optional catalog context parameters in various functions to streamline the merging of planning prompt variables.
- Updated frontend components to include CatalogPromptSlotsEditor for managing prompt slots across different catalog types.
- Enhanced API utilities to support fetching and updating catalog prompt slots, improving backend functionality for catalog management.
- Incremented version numbers and updated changelog to reflect the new features and improvements.
