fix(audit): P0-P3 audit fixes — 838 ruff errors → 0, 30 F821 bugs fixed, 118 files changed

- P0: hooks.py 3-tuple fix, trigger_dispatcher Contract, contacts/plugin unregister_actions_by_owner
- P0: 5 test files — check_permission mocks removed, hardcoded DB credential → env var
- P1: attachment_service DmsFile via Contract helper, restore_registry/history_hooks dedup
- P1: mail/plugin restore unregister, mcp_client datetime.now(UTC), saved_views/filters patterns
- P1: ProtectedRoute fail-closed, 13 test assertion fixes (bcrypt, DB-URLs, SECRET_KEYs)
- P2: deprecated notifications → post_system_message (3 files), forgejo Base, report_generator lazy import
- P2: webhooks permissions, deps.py/roles.py plugin perms removed, import_export default
- P2: address/tags/entity_links patterns removed, worker.py Contract-Umgehungen fixed
- P2: 28 frontend TODOs (hardcoded constants, deprecated notification API)
- P3: dead code, duplicates, deprecated imports, private attr, __import__ inline
- P3: 8 frontend TODOs (LucideIcons, inline styles, XSS, i18n)
- ruff: 838 → 0 (612 auto-fix + 246 manual + 27 F821 regression fix)
- F821: 30 → 0 (AutomationDefinition, DmsFile, user_id, Path, Any, String)
- Contract-Umgehungen: 2 neue gefunden (worker.py:169, worker.py:280) und gefixt

app/commands/__init__.py

@@ -9,28 +9,17 @@ Commands encapsulate business operations with:
 
 Commands do NOT commit or rollback — the calling layer (FastAPI dependency
 ``get_db``) manages the transaction boundary.
+
+Note: Plugin-specific commands (mail, calendar, dms) have been moved to their
+respective plugins. Import them directly from the plugin package.
 """
 
 from app.commands.base import BaseCommand, CommandResult
 from app.commands.contact_commands import (
     CreateContactCommand,
-    UpdateContactCommand,
     DeleteContactCommand,
     MergeContactsCommand,
-)
-from app.commands.dms_commands import (
-    UploadFileCommand,
-    DeleteFileCommand,
-)
-from app.commands.mail_commands import (
-    SendMailCommand,
-    MarkMailReadCommand,
-    DeleteMailCommand,
-)
-from app.commands.calendar_commands import (
-    CreateCalendarEntryCommand,
-    UpdateCalendarEntryCommand,
-    DeleteCalendarEntryCommand,
+    UpdateContactCommand,
 )
 
 __all__ = [
@@ -40,12 +29,4 @@ __all__ = [
     "UpdateContactCommand",
     "DeleteContactCommand",
     "MergeContactsCommand",
-    "UploadFileCommand",
-    "DeleteFileCommand",
-    "SendMailCommand",
-    "MarkMailReadCommand",
-    "DeleteMailCommand",
-    "CreateCalendarEntryCommand",
-    "UpdateCalendarEntryCommand",
-    "DeleteCalendarEntryCommand",
 ]