aichat 0.28.0

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Created by brew bump

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Created with brew bump-formula-pr.

release notes

## New Features

display reasoning tokens (#1139)
webui support think tag (#1140)
strip reasoning contents (#1141)
support model alias (#1150)
enhance .file for loading resources from diverse sources (#1155)
supports selecting LLM during configuration initialization (#1158)
supports fetching models during configuration initialization (#1161)
new model field system_prompt_prefix (#1163)
remove predefined models for ollama (#1165)
add model field patch (#1169)
add patch max_tokens: null to openai/github o* serial models (#1174)
remove supports for hyperbolic and novita (#1176)
remove supports for fireworks/siliconflow/together (#1181)
openai/github providers add o3-mini-high model (#1182)

Bug Fixes

messages with tool_calls have not been saved to messages.md (#1156)
webui sessions do not persist system prompt (#1162)
webui settings do not work (#1175)
better handle OpenAI-Compatible streaming responses (#1184)

New Contributors

@mtul0729 made their first contribution in refactor: several improvements sigoden/aichat#1138
@wwsheng009 made their first contribution in fix: better handle OpenAI-Compatible streaming responses sigoden/aichat#1184

Full Changelog: sigoden/aichat@v0.27.0...v0.28.0

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