fix: use paths in delete_files prompt example

[WeAreResilience]

Summary

The tag-mode prompt told the model to call mcp__github_file_ops__delete_files with files. The tool schema and handler expect paths, so the first signed-commit delete fails Zod validation.

This changes the prompt example to paths and adds a test so the example cannot drift back to files.

Fixes #1665

Test plan

• bun test test/create-prompt.test.ts (49 pass)
• bun run typecheck

From RESILIENCE Agentic Solutions.