resolve_refs now returns type-preserving stubs instead of {} for circular $refs, and create_model_from_schema catches JsonRefError to fall back to lazy top-level-only inlining.
* feat: enhance MCP tool resolution * feat: emit event when MCP configuration fails * feat: emit event when MCP tool execution has failed * style: resolve linter issues * refactor: use clear and natural mcp tool name resolution * test: fix broken tests * fix: resolve MCP connection leaks, slug validation, duplicate connections, and httpx exception handling --------- Co-authored-by: Greyson LaLonde <greyson.r.lalonde@gmail.com> Co-authored-by: Greyson LaLonde <greyson@crewai.com>
