fix(lint): auto-fix ruff violations and tune lint rules

- Auto-fixed 4,496 lint issues (import sorting, modern syntax, etc.)
- Added ignore rules for patterns intentional in this codebase:
  E402 (late imports), E712 (SQLAlchemy filters), B904 (raise from),
  SIM108/SIM105/SIM117 (readability preferences)
- Added per-file ignores for tests and scripts
- Excluded broken scripts/rename_terminology.py (has curly quotes)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/messaging/routes/api/storefront.py

@@ -18,7 +18,6 @@ Customers can only:
 """
 
 import logging
-from typing import List, Optional
 
 from fastapi import APIRouter, Depends, File, Form, Path, Query, Request, UploadFile
 from fastapi.responses import FileResponse
@@ -27,13 +26,12 @@ from sqlalchemy.orm import Session
 
 from app.api.deps import get_current_customer_api
 from app.core.database import get_db
+from app.modules.customers.schemas import CustomerContext
 from app.modules.messaging.exceptions import (
     AttachmentNotFoundException,
     ConversationClosedException,
     ConversationNotFoundException,
 )
-from app.modules.tenancy.exceptions import StoreNotFoundException
-from app.modules.customers.schemas import CustomerContext
 from app.modules.messaging.models.message import ConversationType, ParticipantType
 from app.modules.messaging.schemas import (
     ConversationDetailResponse,
@@ -46,6 +44,7 @@ from app.modules.messaging.services import (
     message_attachment_service,
     messaging_service,
 )
+from app.modules.tenancy.exceptions import StoreNotFoundException
 
 router = APIRouter()
 logger = logging.getLogger(__name__)
@@ -73,7 +72,7 @@ def list_conversations(
     request: Request,
     skip: int = Query(0, ge=0),
     limit: int = Query(50, ge=1, le=100),
-    status: Optional[str] = Query(None, pattern="^(open|closed)$"),
+    status: str | None = Query(None, pattern="^(open|closed)$"),
     customer: CustomerContext = Depends(get_current_customer_api),
     db: Session = Depends(get_db),
 ):
@@ -260,7 +259,7 @@ async def send_message(
     request: Request,
     conversation_id: int = Path(..., description="Conversation ID", gt=0),
     content: str = Form(..., min_length=1, max_length=10000),
-    attachments: List[UploadFile] = File(default=[]),
+    attachments: list[UploadFile] = File(default=[]),
     customer: CustomerContext = Depends(get_current_customer_api),
     db: Session = Depends(get_db),
 ):
@@ -513,7 +512,7 @@ def _get_sender_name(message) -> str:
         if customer:
             return f"{customer.first_name} {customer.last_name}"
         return "Customer"
-    elif message.sender_type == ParticipantType.STORE:
+    if message.sender_type == ParticipantType.STORE:
         from app.modules.tenancy.models import User
 
         user = (
@@ -524,6 +523,6 @@ def _get_sender_name(message) -> str:
         if user:
             return f"{user.first_name} {user.last_name}"
         return "Shop Support"
-    elif message.sender_type == ParticipantType.ADMIN:
+    if message.sender_type == ParticipantType.ADMIN:
         return "Platform Support"
     return "Unknown"