• core: check PropertyMapping's expression syntax before save
• docs: use note blocks instead of code blocks for product description
• factors/view: show concise error message when domain is mis-configured
• lib: add helper method for 400 response with message
• policies/expression: add Expression based policy
• providers/saml: add modal to show metadata without download
• providers/saml: better handle PropertyMapping evaluation errors
• providers/saml: change assertion_valid_not_before default to -5 minutes
• providers/saml: fix linting error
• providers/saml: transition to dataclass from dict, cleanup unused templates, add missing autosubmit_form
• sources/ldap: better handle property mapping evaluation errors