fix(e7): CI-Gate-Vorbereitung — ruff über app/ von 105 auf 0 Findings bereinigt; 8 echte F821-NameError-Produktionsbugs behoben (external_api stream_chat-Call-Signatur an stream_chat_comm angepasst, agent_runner uuid vor lokalem Import, automation/plugin UserTenant-Import, tasks delete-audit user_id, workflows/engine timedelta, unified_search/contracts Any); py311-kompatibles StepHandler-Alias statt type-Statement; E402/F841 bereinigt; Verifikation 85/89 grün (4 Failures = bekannter Vorbestand BUG-099)

app/routes/__init__.py

@@ -4,9 +4,9 @@ from app.routes import (
     addresses,  # noqa: F401
     attachments,  # noqa: F401
     audit,  # noqa: F401
-    compliance,  # noqa: F401
     auth,  # noqa: F401
     bank_accounts,  # noqa: F401
+    compliance,  # noqa: F401
     currencies,  # noqa: F401
     dashboard,  # noqa: F401
     entity_history,  # noqa: F401

app/routes/approvals.py

@@ -7,7 +7,7 @@ from __future__ import annotations
 
 import logging
 import uuid
-from datetime import UTC, datetime
+from datetime import datetime
 from typing import Any
 
 from fastapi import APIRouter, Depends, HTTPException, Query
@@ -16,7 +16,6 @@ from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.approval import (
-    APPROVAL_STATUSES,
     ApprovalRequest,
     create_approval_request,
     expire_approval_request,

app/routes/audit.py

@@ -10,7 +10,7 @@ from datetime import UTC, datetime, timedelta
 
 from fastapi import APIRouter, Depends, HTTPException, Query
 from fastapi.responses import StreamingResponse
-from sqlalchemy import func, select, delete
+from sqlalchemy import delete, func, select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.db import get_db

app/routes/compliance.py

@@ -11,7 +11,7 @@ from typing import Any
 
 from fastapi import APIRouter, Depends, HTTPException, Query
 from pydantic import BaseModel, Field
-from sqlalchemy import select, func
+from sqlalchemy import func, select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.ai.ai_use_case import AIUseCaseMetadata, validate_ai_use_case

app/routes/plugins.py

@@ -10,8 +10,7 @@ from pydantic import BaseModel
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.db import get_db
-from app.deps import require_admin, require_permission
-from app.deps import get_current_user
+from app.deps import get_current_user, require_admin, require_permission
 from app.plugins.migration_runner import MigrationValidationError
 from app.services.plugin_service import get_plugin_service
 

app/routes/workflows.py

@@ -173,7 +173,6 @@ async def create_instance(
     """Create a new workflow instance."""
     tenant_id = uuid.UUID(current_user["tenant_id"])
     user_id = uuid.UUID(current_user["user_id"])
-    is_admin = current_user.get("is_system_admin", False)
 
     try:
         result = await workflow_service.create_instance(
@@ -304,10 +303,11 @@ async def resume_instance(
     """Resume a waiting workflow instance (e.g. after wait timer expired)."""
     tenant_id = uuid.UUID(current_user["tenant_id"])
 
-    from app.workflows.engine import WorkflowEngine
-    from app.models.workflow import WorkflowInstance
     from sqlalchemy import select
 
+    from app.models.workflow import WorkflowInstance
+    from app.workflows.engine import WorkflowEngine
+
     result = await db.execute(
         select(WorkflowInstance).where(
             WorkflowInstance.id == uuid.UUID(instance_id),
@@ -375,9 +375,10 @@ async def webhook_trigger(
     db: AsyncSession = Depends(get_db),
 ):
     """Incoming webhook trigger — starts a workflow via secure token."""
-    from app.models.webhook import Webhook
     from sqlalchemy import select
 
+    from app.models.webhook import Webhook
+
     result = await db.execute(
         select(Webhook).where(
             Webhook.token == token,
@@ -423,9 +424,10 @@ async def get_instance_history(
     """Get step history for a workflow instance (execution log)."""
     tenant_id = uuid.UUID(current_user["tenant_id"])
 
-    from app.models.workflow import WorkflowStepHistory
     from sqlalchemy import select
 
+    from app.models.workflow import WorkflowStepHistory
+
     result = await db.execute(
         select(WorkflowStepHistory)
         .where(
@@ -472,9 +474,10 @@ async def approve_workflow_step(
         body = {}
     comment = body.get("comment", "")
 
+    from sqlalchemy import select
+
     from app.core.approval import create_approval_request, resolve_approval_request
     from app.models.workflow import WorkflowInstance
-    from sqlalchemy import select
 
     result = await db.execute(
         select(WorkflowInstance).where(
@@ -535,9 +538,10 @@ async def reject_workflow_step(
         body = {}
     comment = body.get("comment", "")
 
+    from sqlalchemy import select
+
     from app.core.approval import create_approval_request, resolve_approval_request
     from app.models.workflow import WorkflowInstance
-    from sqlalchemy import select
 
     result = await db.execute(
         select(WorkflowInstance).where(