fix: unhandled model load error

[louis-jan]

Describe Your Changes

Currently, when starting a model from the provider settings, if there's any error raised, it displays an unknown message.

Problem raised by @Vanalite

Fixes Issues

• Closes #
• Closes #

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed

[Copilot]

Pull Request Overview

This PR fixes an unhandled model load error by simplifying the error handling in the provider settings page. Instead of complex error type checking and message extraction, it now directly sets the error object using type assertion.

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[github-actions]

Barecheck - Code coverage report

Total: 29.67%

Your code coverage diff: 0.01% ▴

Uncovered files and lines

File

Lines

web-app/src/routes/settings/providers/$providerName.tsx

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