style: apply black and isort formatting across entire codebase

- Standardize quote style (single to double quotes)
- Reorder and group imports alphabetically
- Fix line breaks and indentation for consistency
- Apply PEP 8 formatting standards

Also updated Makefile to exclude both venv and .venv from code quality checks.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/api/v1/vendor/orders.py

@@ -6,21 +6,17 @@ Vendor order management endpoints.
 import logging
 from typing import Optional
 
-from fastapi import APIRouter, Depends, Query, Request, HTTPException
+from fastapi import APIRouter, Depends, HTTPException, Query, Request
 from sqlalchemy.orm import Session
 
 from app.api.deps import get_current_vendor_api
 from app.core.database import get_db
-from middleware.vendor_context import require_vendor_context
 from app.services.order_service import order_service
-from models.schema.order import (
-    OrderResponse,
-    OrderDetailResponse,
-    OrderListResponse,
-    OrderUpdate
-)
+from middleware.vendor_context import require_vendor_context
 from models.database.user import User
 from models.database.vendor import Vendor, VendorUser
+from models.schema.order import (OrderDetailResponse, OrderListResponse,
+                                 OrderResponse, OrderUpdate)
 
 router = APIRouter(prefix="/orders")
 logger = logging.getLogger(__name__)
@@ -28,13 +24,13 @@ logger = logging.getLogger(__name__)
 
 @router.get("", response_model=OrderListResponse)
 def get_vendor_orders(
-        skip: int = Query(0, ge=0),
-        limit: int = Query(100, ge=1, le=1000),
-        status: Optional[str] = Query(None, description="Filter by order status"),
-        customer_id: Optional[int] = Query(None, description="Filter by customer"),
-        vendor: Vendor = Depends(require_vendor_context()),
-        current_user: User = Depends(get_current_vendor_api),
-        db: Session = Depends(get_db),
+    skip: int = Query(0, ge=0),
+    limit: int = Query(100, ge=1, le=1000),
+    status: Optional[str] = Query(None, description="Filter by order status"),
+    customer_id: Optional[int] = Query(None, description="Filter by customer"),
+    vendor: Vendor = Depends(require_vendor_context()),
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
 ):
     """
     Get all orders for vendor.
@@ -51,45 +47,41 @@ def get_vendor_orders(
         skip=skip,
         limit=limit,
         status=status,
-        customer_id=customer_id
+        customer_id=customer_id,
     )
 
     return OrderListResponse(
         orders=[OrderResponse.model_validate(o) for o in orders],
         total=total,
         skip=skip,
-        limit=limit
+        limit=limit,
     )
 
 
 @router.get("/{order_id}", response_model=OrderDetailResponse)
 def get_order_details(
-        order_id: int,
-        vendor: Vendor = Depends(require_vendor_context()),
-        current_user: User = Depends(get_current_vendor_api),
-        db: Session = Depends(get_db),
+    order_id: int,
+    vendor: Vendor = Depends(require_vendor_context()),
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
 ):
     """
     Get detailed order information including items and addresses.
 
     Requires Authorization header (API endpoint).
     """
-    order = order_service.get_order(
-        db=db,
-        vendor_id=vendor.id,
-        order_id=order_id
-    )
+    order = order_service.get_order(db=db, vendor_id=vendor.id, order_id=order_id)
 
     return OrderDetailResponse.model_validate(order)
 
 
 @router.put("/{order_id}/status", response_model=OrderResponse)
 def update_order_status(
-        order_id: int,
-        order_update: OrderUpdate,
-        vendor: Vendor = Depends(require_vendor_context()),
-        current_user: User = Depends(get_current_vendor_api),
-        db: Session = Depends(get_db),
+    order_id: int,
+    order_update: OrderUpdate,
+    vendor: Vendor = Depends(require_vendor_context()),
+    current_user: User = Depends(get_current_vendor_api),
+    db: Session = Depends(get_db),
 ):
     """
     Update order status and tracking information.
@@ -105,10 +97,7 @@ def update_order_status(
     Requires Authorization header (API endpoint).
     """
     order = order_service.update_order_status(
-        db=db,
-        vendor_id=vendor.id,
-        order_id=order_id,
-        order_update=order_update
+        db=db, vendor_id=vendor.id, order_id=order_id, order_update=order_update
     )
 
     logger.info(