- sso_service: fix process_callback for Azure AD claim URIs (email, role)
- Default role_attr to full Azure role claim URI
- Fallback email resolution via Azure email claim URI + NameID
- Username defaults to full email (prevents collision with local accounts)
- User lookup also tries email field for existing local accounts
- Logs warning when unknown role received from IdP
- frontend/api/sso.ts: new API module with getSsoStatus, getSsoConfig, updateSsoConfig
- LoginPage: redesigned for SSO-first flow
- Shows Azure SSO button as primary when SSO enabled+configured
- Local login collapsed under "Emergency admin access" section
- Falls back to normal local login form when SSO is disabled
- SystemPage: new SsoConfigSection component (guided 5-step wizard)
- Step 1: Copy SP Entity ID and ACS URL for IT team + metadata XML download
- Step 2: Azure App Roles reference table (6 roles with exact values)
- Step 3: Tenant ID field auto-fills idp_entity_id and idp_sso_url
- Step 4: X.509 certificate paste field
- Step 5: Attribute mapping pre-filled with Azure AD claim URIs
- Enable/disable toggle + save
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>