- New authProcedure.ts: Microsoft login flow (email/password, MFA detection, stay signed in)
- New backgroundProcedure.ts: download image URL, upload as Teams virtual background
- Orchestrator: authenticate before join when botAccountEmail provided
- JoinProcedure: skip name input for authenticated joins
- meetingUrlParser: anon=true only for anonymous joins
- SessionManager/HttpServer: pass new fields through the chain
- Updated Teams caption language selectors for current UI
Co-authored-by: Cursor <cursoragent@cursor.com>