Add Gitea MCP tools for repo discovery, duplicate detection, label/milestone
management, and issue creation. Expand workflow from 4 steps to 7: repo context
setup, duplicate checking, optional codebase exploration, and issue creation
with explicit user approval. Update template with Related Issues section and
add error handling with graceful degradation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>