Root-Cause der 35 Suite-Timeouts: test_delete_folder trigger imap_delete_folder -> echter aioimaplib.IMAP4_SSL-Connect zu imap.example.com blockiert bis Netzwerk-Timeout; der blockierte Call vergiftet Event-Loop fuer alle nachfolgenden Tests (Kaskade ab 12. Test).
Fixes: (1) tests/conftest.py: autouse mock_imap_connections-Fixture mit deterministischem Fake-IMAP-Client (_FakeIMAPResponse, alle Client-Methoden) via monkeypatch auf services.aioimaplib.IMAP4_SSL. (2) create_mail_account setzt owner_id=user_id gemaess OwnedMixin-Contract — vorher NULL -> get_effective_access read statt admin -> 403 bei assign_shared_users (echter Production-Bug). (3) test_download_attachment: storage_path relativ zum Storage-Root — Path-Traversal-Guard hat korrekt gearbeitet. (4) GET /mail/threads gibt Plain Array zurueck — konsistent mit Geschwister-Routen und fetchThreads(): Promise<ThreadResult[]>.
Beweise: 46/46 passed in 94.41s (vorher 1 failed, 10 passed, 35 errors in 1109.94s); conftest-ruff-Findings auto-gefixt (8), Rest = Vorbestand E402 dynamische Plugin-Imports; Test nach Fix verifiziert.
Root-Cause: Frontend-Komponenten (SignatureManager, LabelManager) rufen Endpunkte auf die das Backend nie hatte (404/405 in Production). Anders als ai/sessions sind diese Funktionen ECHT in Komponenten eingebunden -> Backend-Routen nachbestellt statt Frontend-Calls zu loeschen:
(1) PATCH+DELETE /mail/signatures/{id}: MailSignatureUpdate-Schema neu, Tenant-Scoped + Owner-Check (403 bei fremder Signatur), is_default-Exklusivitaet beim Setzen. (2) DELETE /mail/labels/{id}: gleicher Stil. (3) updateDraft Frontend: apiPatch -> apiPut (Backend hat PUT /drafts/{id} bereits). Beweistest tests/test_mail_sig_label_routes.py 5/5 gruen (PATCH-Werte, DELETE+Liste-leer, 404-Faelle).
Verifikation: create_app registriert beide neuen Routen (563 total); ruff clean; tsc exit=0.
- delete_mail: set deleted_at when moving to Trash (not just folder_id)
- empty_folder: same — set deleted_at when moving to Trash
- list_mails: show soft-deleted mails when viewing Trash folder
- This prevents sync from moving deleted mails back to inbox
- Trash folder shows deleted_at mails, all other folders hide them
- Fix missing func import (imap_sync_folder was crashing silently)
- imap_delete_mail now moves to Trash folder instead of permanent delete
- Add permanent parameter: permanent=True for Trash->delete, False for Inbox->Trash
- delete_mail route: move to Trash if not in Trash, permanent delete if in Trash
- empty_folder: move to Trash or permanent delete if already in Trash
- Add Papierkorb/Trash folder to create_mail_account
- Fix not Mail.is_seen -> Mail.is_seen.is_(False) (SQLAlchemy bug)
- Fix select(text("COUNT(*)")) -> select(func.count()).select_from(Mail)
- process_sync_queue reads permanent flag from payload
- New imap_sync_folder function: syncs single folder quickly for live use
- New POST /mail/folders/{folder_id}/sync route
- Frontend: syncFolder API + called on every folder selection
- Auto-sync interval reduced from 300s to 60s
- Sent mail IMAP APPEND already uploads full body via msg.as_bytes()
- imap_delete_mail: use stored imap_uid instead of Message-ID search, raise on failure
- imap_move_mail: same imap_uid fix, raise on failure
- New MailSyncQueue model + migration 0007 for pending IMAP operations
- delete_mail route: queues failed IMAP delete for retry
- move_mail route: queues failed IMAP move for retry
- process_sync_queue: retries pending delete/move operations in auto-sync loop
- Auto-sync loop: processes sync queue before pulling new mails
- Restore soft-deleted mails if they still exist on IMAP server during sync
- Upload sent mails to IMAP Sent folder via APPEND after SMTP send
- Plugin version bumped to 1.2.0
- Mail list: title and subject font text-xs -> text-sm
- Remove Termin (create-event) toolbar button
- Rename Flagge -> Markierung with select dropdown (star, flag, bookmark, important, question)
- Backend: add flag_type column to Mail model + migration 0006
- Backend: flag_type in MailFlagsUpdate schema, update_flags route, mail_to_response
- Frontend: flag_type in Mail interface, FlagUpdatePayload, MailList symbol display
- MailFolderTree: compact styling matching AI assistant SessionList (py-1, text-sm, depth*12+8 padding, no space-y)
- Added right-click context menu on folders with "Ordner leeren" entry
- Backend: POST /mail/folders/{folder_id}/empty soft-deletes all mails in folder
- Frontend API: emptyFolder() function added to mail.ts
- Mail.tsx: onFolderEmptied callback reloads mails and folders
- Fix FlagUpdatePayload field names to match backend schema (is_seen/is_flagged)
- Replace dangerouslySetInnerHTML with sandboxed iframe (srcDoc, sandbox="")
- Add bulk mark read/unread with checkbox selection in MailList
- Add floating bulk action bar in Mail.tsx
- Add imap_sync_mail_flags() to push Seen/Flagged flags to IMAP server
- Call IMAP flag sync in PATCH /flags endpoint
- Add i18n keys for bulk actions (de/en)
Agent Zero