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/services/address_service.py

@@ -8,12 +8,10 @@ from typing import Any
 
 from sqlalchemy import select, update
 from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy.orm import selectinload
 
 from app.core.audit import log_audit
-from app.models.address import Address
 from app.core.visibility import apply_visibility_filter, check_single_entity_access
-
+from app.models.address import Address
 
 VALID_ENTITY_TYPES = {"contact"}
 VALID_ADDRESS_TYPES = {"billing", "shipping", "headquarters", "branch", "private", "other"}
@@ -216,8 +214,8 @@ async def migrate_existing_addresses(db: AsyncSession) -> int:
     """Migrate existing address fields from companies/contacts to Address records.
     Called during migration 0013. Returns count of created addresses.
     """
-    from app.models.contact import Contact as Company
     from app.models.contact import Contact
+    from app.models.contact import Contact as Company
 
     count = 0