Bump Jest manifest range to 29.7.x to remediate transitive @babel/core Dependabot alert

[Copilot]

Dependabot flagged transitive @babel/core via Jest’s transform pipeline. This PR updates Jest at the project boundary (not app/runtime deps) and refreshes lock metadata accordingly, while keeping the Node engine contract unchanged.

• Dependency remediation

  • devDependencies.jest in package.json updated from ^29.0.0 to ^29.7.0.
  • package-lock.json regenerated/updated to align root dependency metadata with the Jest 29.7.x line used by the repo.

• Scope / behavior

  • No Babel config introduced.
  • No application code changes.
  • No runtime dependency changes.

• Compatibility

  • Preserves project engine requirement: node >=18.0.0.
  • Chooses the safe Jest-line bump compatible with current engine policy.

• Validation included in this update

  • Existing Jest suite still passes after the dependency update.

// package.json
"devDependencies": {
  "jest": "^29.7.0"
}