[lake/lance] Support Flink SQL batch query against Lance table

### Search before asking

- [x] I searched in the [issues](https://github.com/apache/fluss/issues) and found nothing similar.

### Motivation

Using Flink SQL e.g. `SELECT * FROM product$lake` is not supported today on Lance table

### Solution

_No response_

### Anything else?

_No response_

### Willingness to contribute

- [ ] I'm willing to submit a PR!

No source file, test, or implementation entry point is identified. Begin by locating the Flink SQL query path for Lance tables and compare it with the existing handling of SELECT * FROM product$lake; done means batch queries against Lance tables execute successfully with coverage for the reported query form.

Written by the indexing model from the issue text.