Fix TypeScript Errors

You are fixing TypeScript type errors. This command embeds strict rules to prevent "reward hacking" - patterns that make linters pass without actually fixing type safety issues.

CRITICAL: Read Before Starting

Your goal is RUNTIME TYPE SAFETY, not just passing linters.

If your fix would make the linter happy but could still crash at runtime, it's wrong.

Forbidden Patterns

These patterns are EXPLICITLY FORBIDDEN. Using them will require rework: