Fix 1 (scan-internal): filter out \All, \Drafts, \Sent, \Trash, \Flagged via
specialUse — stops [Gmail]/All Mail from consuming the SCAN_LIMIT=200 and
blocking new INBOX mails from reaching fetch range. \Junk/\Spam stay in scope.
Folders without specialUse (iCloud, GMX) pass through untouched — no false
exclusions without confirmed metadata.
Fix 2 (mail-classifier): raise SUBJECT_GAMBLING_KEYWORD from 35 to 50 so a
single unambiguous casino/jackpot/freispiel subject hit alone reaches the
SCORE_BLOCK_MIDRANGE threshold and triggers a block. Previously 35 pts fell
short when sender domain was generic and display name empty.
Tests: 9 new cases added (2 Fix-2 classifier + 4 Fix-1 folder-filter unit +
1 computeScore score=50 exact assertion). All 265 tests green.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>