Feat/bug fix

[alcholiclg]

Change Summary

• bug fix for webui
• support for tui (beta version)

Related issue number

Checklist

• The pull request title is a good summary of the changes - it will be used in the changelog
• Unit tests for the changes exist
• Run pre-commit install and pre-commit run --all-files before git commit, and passed lint check.
• Documentation reflects the changes where applicable

[gemini-code-assist]

Code Review

This pull request introduces a data-driven provider layer that replaces hard-coded LLM service mappings with a declarative spec registry and transport system. It also adds a lightweight Terminal UI (TUI) application and consolidates framework-internal directories under a single .ms_agent/ namespace to keep the working directory clean. The review feedback highlights several critical issues: the permission handler selection needs to support the default restricted mode; the OpenAI-compatible transport must guard continuation attempts to avoid 400 errors on strict APIs; the workspace zip download requires symlink resolution to prevent path traversal; the argument parser should ignore the standard -- separator; and log directory creation needs exception handling to prevent startup crashes.

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