v0.6.3

Maintenance

• Dependency updates via Dependabot: phf 0.13.1 → 0.14.0 (core crate), @types/node 25.9.3 → 26.0.0 (vscode dev dependency).
• CI action pins refreshed: actions/checkout 6.0.3 → 7.0.0, softprops/action-gh-release 3.0.0 → 3.0.1, dtolnay/rust-toolchain advanced to the latest pinned SHA.

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