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/plugins/builtins/marketplace/routes.py

@@ -3,23 +3,21 @@
 from __future__ import annotations
 
 import logging
-import uuid
-from pathlib import Path
 
 from fastapi import APIRouter, Depends, HTTPException, Query
 from sqlalchemy.ext.asyncio import AsyncSession
 
+import app.plugins.builtins.marketplace.services as marketplace_services
 from app.core.db import get_db
 from app.deps import require_admin, require_permission
 from app.plugins.builtins.marketplace.schemas import (
     MarketplaceCategoriesResponse,
     MarketplaceInstallRequest,
     MarketplaceInstallResponse,
-    MarketplaceListResponse,
     MarketplaceListingRead,
+    MarketplaceListResponse,
     MarketplaceVerifyResponse,
 )
-import app.plugins.builtins.marketplace.services as marketplace_services
 
 logger = logging.getLogger(__name__)
 
@@ -51,7 +49,7 @@ async def list_marketplace_listings(
     )
 
     return MarketplaceListResponse(
-        listings=[MarketplaceListingRead(**l) for l in result["listings"]],
+        listings=[MarketplaceListingRead(**listing) for listing in result["listings"]],
         total=result["total"],
         page=result["page"],
         page_size=result["page_size"],