Problem:
accesses directly.
In Turbo Mode (Store), we use mapped keys (e.g. but raw data has ).
Direct access returns , causing the Collection to generate negative IDs (, ) for items.

Solution:

1. Refactor : Introduce method (defaulting to direct access).
2. Update : Replace all internal direct key access with .
3. : Ensure its existing override correctly handles the Reverse Mapping (Canonical -> Raw) logic.

Result:
The Collection will correctly resolve keys from Raw Objects even when using Canonical Key Properties, fixing the Grid ID regression without breaking Selection Models.