v0.3.13

- Fix channel config list fields saved as strings instead of TOML arrays (#288)
- Fix Discord GroupPolicy::MentionOnly not enforced — bot now checks @mentions (#289)
- Add Discord allowed_users config option for user-level access control (#290)
- Fix colon delimiter in model names (e.g. qwen:qwen-plus now works) (#283)
- Add GLM-5 and GLM-4.7 models for Zhipu AI (#285)
- Improve Ollama error message to suggest ollama pull (#292)
- Fix custom models from unknown providers showing as unavailable (#284)