Fix npm dependency security vulnerabilities

[Copilot]

Resolved 6 security vulnerabilities in npm dependencies (1 high, 4 moderate, 1 low severity).

Vulnerabilities Fixed

• cross-spawn (high) - ReDoS vulnerability
• @babel/helpers (moderate) - Inefficient RegExp complexity
• js-yaml (moderate) - Prototype pollution in merge
• lodash (moderate) - Prototype pollution in _.unset and _.omit
• micromatch (moderate) - ReDoS vulnerability
• brace-expansion (low) - ReDoS vulnerability

Changes

• Updated transitive dependencies in package-lock.json via npm audit fix
• No code changes required
• All tests pass with updated dependencies

Original prompt

Fix the security vulnerabilities in the repositories

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