- Fix region field being ignored: pass user-configured region to listFoundationModels and listEndpoints
- Add user notification before silent fallback when API fails
- Throw error on credential corruption instead of returning null
- Remove redundant credentials (accessKeyId, secretAccessKey) from Redux store (they're securely stored via safeStorage)
- Add warnings field to ListModelsResult for partial API failures
- Fix Redux/IPC order: save to secure storage first, then update Redux on success
- Update related tests
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Co-Authored-By: Claude <noreply@anthropic.com>
suyao
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