Added lint rule to analysis_options.yaml and ran dart fix --apply to convert
125 relative imports in 33 files to package:sharedinbox/... style.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add live-connection Sieve script management for JMAP accounts via
RFC 9661: list, create, edit, delete, and activate scripts.
Accessible via "Email filters" in the account popup menu.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>