[FEATURE]: Expose tool execution capabilities to plugins

[yuguorui]

Feature hasn't been suggested before.

• [x] I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

Expose tool execution capabilities to plugins and OpenAPIs, enabling them to reuse existing tools while respecting permission requirements.

What we have now:

1. List tools
2. List tool IDs