Microsoft Teams Bot Integration

[lipka-clazzpl]

Description

This PR adds Microsoft Teams integration to OnyxBot, enabling the bot to interact with Teams channels and users. The integration follows similar patterns to our existing Slack integration for consistency and maintainability.

Key components implemented:

• Teams bot core functionality (message handling, authentication, webhooks)
• Database models for Teams bots and channel configurations
• Server-side management endpoints
• Frontend components for bot and channel management
• Subscription and token management utilities

Still in progress:

• Frontend dependency resolution (SWR package)
• Authentication flow testing
• End-to-end message handling tests
• Documentation updates

How Has This Been Tested?

Testing in progress:

• Unit tests for Teams bot core functionality
• Database migration tests
• Integration tests for Teams API endpoints
• Frontend component tests
• E2E testing with Teams webhook simulation

Backporting (check the box to trigger backport action)

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