### What problem does this PR solve?
Python implementation of the Go-based model_provider API suite.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: bill <yibie_jingnian@163.com>
### What problem does this PR solve?
AI coding agents (Claude, Copilot, etc.) tend to directly edit files in
`src/components/ui/` when asked to tweak styles or add props, treating
them like ordinary feature code. This silently breaks the shared
component library that both shadcn primitives and project-authored
common components live in.
This PR adds a `Shared UI Component Lock` convention to `web/CLAUDE.md`
to instruct AI agents to treat the entire `src/components/ui/` directory
as read-only. Any customization must be done via wrappers or composition
outside the directory; exceptions require explicit user approval.
### Type of change
- [x] Other (please describe): Update `CLAUDE.md`
