f6beb06364
**What this PR does:** - Migrates existing `Favorite` and `FavoriteFolder` entities to the new `NavigationMenuItem` structure - Preserves user-level vs workspace-level ownership - Preserves folder structure, positions, and relationships - Handles both view-based favorites (linked to views) and record-based favorites (linked to records) - Soft-deletes original favorites and folders after successful migration - Enables the `IS_NAVIGATION_MENU_ITEM_ENABLED` feature flag post-migration - Skips migration if the feature flag is already enabled - Idempotent: checks for existing navigation menu items to prevent duplicates **Migration flow:** 1. Migrate favorite folders first (creates folder mapping) 2. Migrate favorites 3. Soft-delete migrated favorites and folders 4. Enable feature flag **What's next:** - After all workspaces are migrated and the navigation menu item feature is fully rolled out, we can: - Remove the old `Favorite` and `FavoriteFolder` entities and related code - Remove the feature flag check and make navigation menu items the default - Clean up any deprecated favorites-related code paths in the frontend --------- Co-authored-by: Etienne <45695613+etiennejouan@users.noreply.github.com>