[Feature]: Install a specific provider CLI version, not just @latest

[danharms]

Before submitting

• I searched existing issues and did not find a duplicate.
• I am describing a concrete problem or use case, not just a vague idea.

Area

Settings > Providers

Problem or use case

The "Update provider" action always installs @latest. There is no way to target a specific version or roll back. When a CLI update breaks compatibility with T3, manual filesystem changes outside the app are the only option.

Proposed solution

Add version management to the provider settings. Show the currently installed version, allow selecting from recently available versions, and support installing a specific version by number. The package manager commands already support targeting a version. It just isn't exposed.