- models/mail.py: lowercase `list` generics per CLAUDE.md convention.
- client/mail.py: _ocs_get now inspects ocs.meta.statuscode (re-raises >=400
as HTTPStatusError carrying the OCS code so callers' 404/403 handling
applies) and guards response.json() against non-JSON bodies (RequestError).
- Extract the duplicated _format_addresses + content reconstruction into
vector/mail_content.py, used by both processor.py and context.py (fixes the
SonarCloud new_duplicated_lines_density gate).
- processor.py: add the missing mail_message Qdrant payload block so the
computed mail metadata (subject/from/to/cc/date_int/has_attachments/
account_id/mailbox_id) is actually stored, not dropped.
- Rename the list_messages `filter` param to `search_filter` (avoid shadowing
builtins.filter); still maps to the OCS `filter` query param.
- Docstring notes: has_more heuristic, attachment content size.
- Tests: OCS meta-failure + non-JSON client paths; initial-sync scanner tests
(tests/unit/vector/test_scanner_mail.py).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
