Feature/Add Audit and Deletion (#5994)

* feat(audit): add emitEvent and file-based audit logging

* fix(sanitize.util.ts): correct IPv6 sanitization for audit log IP masking

* feat(account): add account deletion

* fix(sanitize.util.ts): add recursive sanitization for nested metadata

* fix(MainLayout/Header/Workspace): refresh workspace list when clicking dropdown

* feat(views/account): require typed confirmation for account deletion