Mail: unified inbox, snooze, templates, and saving attachments to Files

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

.gitea/workflows/build.yml

@@ -33,6 +33,7 @@ jobs:
       - run: node tools/backup-test.js  # backup restore (unsafe archives refused, old data kept) and personal export
       - run: node tools/listening-test.js # listening stats: real listening counted, seeks not, streak and finished books
       - run: node tools/moviefam-test.js # Movies & TV: favorites and the family movie night vote
+
       - run: node tools/signal-test.js  # Signal: linking, messages, sending, live updates
       - run: node tools/podcast-test.js # Podgrab podcasts: only allowed calls pass, password stays on the server
       - run: node tools/abapi-test.js   # audiobooks: signed in as the person, audio ranges, progress, blocked calls