761f8d88dc
- MailSettings account form: RHF+Zod (email valid, password required, imap/smtp host required, ports numeric) - SignatureManager: RHF+Zod (name required, body_html, is_default) - RuleEditor: RHF+Zod (name required, priority numeric) - LabelManager: RHF+Zod (name required, color optional) - VacationResponder: RHF+Zod (enabled, dates with end>start validation, subject, body) - Error display under each field - Preserved all existing functionality: CRUD, templates, variables - Added 2 validation tests for MailSettings account form