Add LinkedIn Social Media Integration

[thunder-velvet]

Description

Implement LinkedIn as a social media scheduling provider, allowing users to schedule and publish posts directly to LinkedIn.

Requirements

• Create a LinkedIn provider class implementing the ProviderInterface in packages/backend/scheduler/providers/linkedin.provider.ts
• The implementation should support:
  • Authentication with LinkedIn API
  • Posting text content to LinkedIn
  • Uploading and attaching media (images) to posts
  • Creating threaded posts if needed

Implementation Details

• Create a new LinkedIn class that implements the ProviderInterface
• Add OAuth2 authentication flow for LinkedIn
• Implement token refresh mechanism
• Add to SchedulerList in packages/backend/scheduler/scheduler.list.ts
• Add appropriate UI elements for LinkedIn connection
• Update the social media selection UI to include LinkedIn option

API Documentation

LinkedIn API Documentation

Testing

• Test authentication flow
• Test posting with and without media attachments
• Test token refresh mechanism

Design

• Add LinkedIn logo to the social media selection UI
• Use the standard LinkedIn branding colors