fix(dropbox): access type param pass through to get refresh token

[icecrasher321]

Summary

Dropbox refresh token not being fetched correctly.

Type of Change

• Bug fix

Testing

Tested manually with @aadamgough

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
docs	Skipped		Dec 24, 2025 0:19am

[greptile-apps]

Greptile Summary

Added authorizationUrlParams with token_access_type: 'offline' to Dropbox OAuth configuration to fix refresh token generation.

• Fixed Dropbox OAuth to properly request refresh tokens by passing token_access_type: 'offline' in authorization URL parameters
• The existing accessType: 'offline' config wasn't sufficient; Dropbox requires the explicit token_access_type parameter in the authorization URL

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• The change is a targeted bug fix that adds a required OAuth parameter for Dropbox, has been manually tested, and follows established patterns for handling OAuth refresh tokens
• No files require special attention

Important Files Changed

Filename	Overview
apps/sim/lib/auth/auth.ts	Added token_access_type: 'offline' param to Dropbox OAuth config to enable refresh token generation

Sequence Diagram

sequenceDiagram
    participant User
    participant App as Sim App
    participant Auth as BetterAuth Library
    participant Dropbox as Dropbox OAuth

    User->>App: Start OAuth flow
    App->>Auth: Build authorization URL
    Note over Auth: Uses authorizationUrlParams<br/>for offline capability
    Auth->>Dropbox: Direct user to consent
    Dropbox->>User: Show consent screen
    User->>Dropbox: Approve
    Dropbox->>App: Redirect with code
    App->>Auth: Handle callback
    Auth->>Dropbox: Exchange code
    Dropbox->>Auth: Return with refresh enabled
    Auth->>App: Store session
    App->>User: Success

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