Add sql-tools extension

[Kidkender]

Summary

Adds the SQL Tools extension (sql-tools) to the registry.

Repository: https://github.com/kidkender/zed-sql-tools

What it does

• AST-based SQL formatter (no external CLI required)
• Smart formatting rules: single-line for short queries, multi-line with indented columns for complex ones
• Linting: warns on UPDATE without WHERE, syntax errors, missing columns
• Inline comment preservation, idempotent formatting

Checklist

• Unique extension ID (sql-tools) — does not contain "zed" or "extension"
• MIT license included
• extension.toml with id, name, version
• Public repository
• Release tag v0.2.1 exists
• Language server is downloaded at runtime (not bundled)
• entry added in alphabetical order in extensions.toml

[cla-bot]

We require contributors to sign our Contributor License Agreement, and we don't have @Kidkender on file. You can sign our CLA at https://zed.dev/cla. Once you've signed, post a comment here that says '@cla-bot check'.

[Kidkender]

@cla-bot check

[cla-bot]

We require contributors to sign our Contributor License Agreement, and we don't have @Kidkender on file. You can sign our CLA at https://zed.dev/cla. Once you've signed, post a comment here that says '@cla-bot check'.

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[Kidkender]

@cla-bot check

[cla-bot]

We require contributors to sign our Contributor License Agreement, and we don't have @Kidkender on file. You can sign our CLA at https://zed.dev/cla. Once you've signed, post a comment here that says '@cla-bot check'.

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[Kidkender]

@cla-bot check

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!