Fix missing npm dependencies causing TypeScript lint failures

[Copilot]

Description

Five packages imported in source were absent from package.json, causing tsc --noEmit to fail with TS2307 (module not found) and TS7006 (implicit any) errors.

Added to dependencies:

• @google/generative-ai@^0.24.1 — AIService.ts
• @octokit/rest@^22.0.1 — GitHubService.ts (also resolves implicit any on pr via bundled types)
• pino@^10.3.1 + pino-pretty@^13.1.3 — logger.ts
• zod@^3.23.8 — ConfigService.ts

Related Issue

Closes #

Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 📝 Documentation update
• 🔧 Refactor / internal improvement
• 🤖 CI/CD or tooling change
• ⬆️ Dependency update

Checklist

• I have read the CONTRIBUTING guidelines (if present)
• My code follows the existing code style
• I have added or updated tests that cover my changes
• All existing tests pass locally
• I have updated the documentation where necessary
• My changes do not introduce new security vulnerabilities

How Has This Been Tested?

npm run lint (tsc --noEmit) passes with zero errors after npm install.

Screenshots (if applicable)

Additional Notes

All five added packages were verified clean against the GitHub Advisory Database prior to inclusion.

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