- Microsoft Teams Graph API does not support DELETE on channel messages
- This is a platform limitation, not an application error
- Updated UI to show clear warning about Teams API limitation
- Updated error messages to guide users on alternatives:
- Delete via Teams client UI
- Use delegated token with ChatMessage.ReadWrite.All permission
- HTTP 405 (Method Not Allowed) is the expected response from Graph API
- Added dotenv package to load environment variables from absolute path
- Secrets now loaded automatically on app startup, no manual sourcing needed
- Secrets file secured with chmod 600, outside project directory
- Enables persistent secrets across service restarts
- Tested: Job submission flow working end-to-end with all steps completing
aewing