* fix: expand openai-codex model catalog to match agent DEFAULT_CODEX_MODELS
The _PROVIDER_MODELS["openai-codex"] catalog only listed codex-mini-latest,
so the model dropdown for profiles using openai-codex provider (e.g. CodePath)
showed only that one entry — even when the profile's saved default_model was
gpt-5.4 or another standard Codex model.
Updated to match DEFAULT_CODEX_MODELS from hermes_cli/codex_models.py:
- gpt-5.4
- gpt-5.4-mini
- gpt-5.3-codex
- gpt-5.2-codex
- gpt-5.1-codex-max
- gpt-5.1-codex-mini
- codex-mini-latest (kept, relabeled as 'Codex Mini (latest)')
Also adds 2 regression tests: catalog includes gpt-5.4, display name correct.
* docs: v0.50.28 release — version badge and CHANGELOG
---------
Co-authored-by: Nathan Esquenazi <nesquena@gmail.com>