feat(rust): support datafusion url table

[majin1102]

Close #5806

[github-actions]

Code Review

Summary

This PR adds support for DataFusion URL table queries against Lance datasets (e.g., SELECT * FROM 'path/to/data.lance').

Potential Issues

P1: URL detection may be too simplistic

The .lance suffix check in LanceUrlTableFactory::try_new uses url.ends_with(".lance"):

if !url.ends_with(".lance") {
    return Ok(None);
}

This could have edge cases:

• URLs with query parameters: s3://bucket/data.lance?versionId=123 would fail
• URLs with trailing slashes: s3://bucket/data.lance/ would fail

Consider using URL parsing or path extraction before checking the extension, or document these limitations.

P1: Missing license header line

url_factory.rs only has // SPDX-License-Identifier: Apache-2.0 but is missing the second line // SPDX-FileCopyrightText: Copyright The Lance Authors that other files in the crate have.

Minor Observations

• The test coverage is reasonable for the happy path but could benefit from a test case with remote URLs (S3/GCS) in integration tests.
• The MultiUrlTableFactory design is clean and allows for extensibility.

Overall the implementation follows the existing patterns in the codebase well.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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