## Which issue does this PR close?

- Closes apache#1963.

## What changes are included in this PR?

This change validates that table metadata with reserved sort order ID
(0) cannot contain fields associated with it. If this is found, we error
out instead of silently parsing arbitrary field values.

## Are these changes tested?

Added the unit test described in the issue and verified that the check
is now enforced.

Implement LIMIT pushdown to optimize queries with LIMIT clauses by
stopping data processing once the limit is reached. This reduces
unnecessary I/O and computation for queries that only need a subset of
rows.

Changes:
- Add limit field to IcebergTableScan to track row limit
- Apply limit at stream level by filtering/slicing record batches
- Update IcebergTableProvider and IcebergStaticTableProvider to pass
limit parameter to scan
- Add comprehensive tests for limit pushdown functionality

## Which issue does this PR close?


- Closes #.

## What changes are included in this PR?


## Are these changes tested?

Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>