[Angnuo (angnuoli)]

Summary

• Restore Qwen's API key signup entry to https://click.qianwenai.com/m/20000000741/.
• Restore MiniMax's BYOK campaign entry with source=microclaw.
• Keep the MiniMax API Base URL at https://api.minimax.cn/v1; the campaign link and API endpoint are separate settings.
• Add regression coverage for both campaign URLs and the retained MiniMax API endpoint.

Validation

• 38 related tests passed across managed-model-providers.test.ts and ModelSetupDialog.test.ts.
• Prettier check passed for both changed files.
• git diff --check passed.