chore(volta): bump pinned Node.js to 24.15.0

[firestar300]

Note

Medium Risk
Moderate risk because it upgrades the pinned Node.js major version and updates @typescript-eslint/*, which can break local dev/CI environments or introduce new linting failures.

Overview
Updates the project’s pinned Node.js version via Volta from 20.12.0 to 24.15.0 and adds explicit devDependencies for @typescript-eslint/eslint-plugin and @typescript-eslint/parser (now ^6.21.0), with corresponding package-lock.json resolution changes.

Adjusts the Javascript Quality Checks GitHub Actions workflow to rerun when package.json changes (in addition to src/**), ensuring dependency/tooling updates are validated in CI.

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