Industry & Brand Story Persistence Fix

Brand Kit Core

✨ What''s Improved

Two persistence issues in the Brand Kit editor have been resolved.

Industry hierarchy: Selecting an Industry, Subindustry, and Sector appeared to save successfully, but only the top-level Industry was actually persisted. Subindustry and Sector reverted on navigation.
Brand Story: Saving content on the Brand Story card failed with Could not find the 'storytelling_elements' column of 'brand_kit_core' in the schema cache.

Added the missing storytelling_elements JSONB column to brand_kit_core.
Unified the industry save path so the full hierarchy is written to brand_kits.industry_details and the deepest selected node is mirrored to brand_kit_core.industry_classification_id.
Added refetch() after save so the editor no longer rehydrates stale data on navigation.
Updated completion logic to recognize industry data from either storage location.
Backfilled existing brand kits so industry_classification_id reflects the deepest previously-selected node.

Open a brand kit → Overview → select Industry → Subindustry → Sector → Save.
Navigate to another tab and back — all three levels should remain selected.
Open the Brand Story card, add storytelling content, and confirm it saves without error.