Precompiled 2026-08-24-b0cd18c

Report per-table schema validation outcomes with reason (#56545)

No behavior change in this PR.

Refactors code in the schema worker to make the `table_shape_provider` public and an `enum TableValidationOutcome` reason for not needing to validate a table given a new schema (or `TableValidationOutcome::MustWalk` if the table will be walked by the schema worker).

The purpose of this code refactor is to open up the possibility of reporting this reason in the CLI, regardless of this need, `table_shape_provider` will be used by backend in `deploy_config.rs`

GitOrigin-RevId: 3b3c67ccf838b0d4c3eaa9f2f17bb8639743b7f7