Better Github Comment Suggestions

[lightninglu10]

Remove code snippet support from reviews

This PR removes the optional code property and <code> block support across type definitions, parsers, and documentation.

Key Changes:

• Deleted code?: string from type interfaces (src/types.ts, types.ts, FILE_STRUCTURE.md).
• Stripped out <code> parsing logic in src/xml-parser.ts.
• Cleaned up system prompt templates (src/agent/agent-system-prompt.ts, src/system-prompt.ts).
• Updated documentation in FILE_STRUCTURE.md accordingly.

Review Notes:

• Ensure no residual <code> references remain.
• Confirm existing tests for comment parsing still pass without handling.

[github-actions]

❇️ CodePress Review Summary

👋 Hey team,

Overall the changes look great! No specific issues found.

Here's the quick rundown:

✅ Decision: APPROVE
The removal is consistent and intentional, cleaning up unused code snippet support; no blocking issues detected.