This commit incorporates clarifications into the 063-entra-signin feature specification.
Key clarifications include:
- Multi-tenant login flow: Users with multiple memberships will be redirected to a dedicated chooser page.
- Disabled user login: Logins for disabled/soft-deleted users will be blocked, and they will be redirected with a generic error.
- Data model column sizing: and columns will be (or UUID type for PostgreSQL).
These updates ensure a more precise and robust specification, covering critical UX, security, and data modeling aspects.
