fix: ruff lint + format fixes in tests, ESLint fixes in frontend

backend/app/routers/ocr.py

@@ -2,7 +2,17 @@
 
 import uuid
 
-from fastapi import APIRouter, BackgroundTasks, Depends, File, Form, HTTPException, Query, UploadFile, status
+from fastapi import (
+    APIRouter,
+    BackgroundTasks,
+    Depends,
+    File,
+    Form,
+    HTTPException,
+    Query,
+    UploadFile,
+    status,
+)
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.config import settings
@@ -78,7 +88,12 @@ async def upload_scan(
         except (ValueError, TypeError):
             raise HTTPException(
                 status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
-                detail={"error": {"code": "INVALID_VEHICLE_ID", "message": "Invalid vehicle UUID"}},
+                detail={
+                    "error": {
+                        "code": "INVALID_VEHICLE_ID",
+                        "message": "Invalid vehicle UUID",
+                    }
+                },
             )
 
     try:
@@ -101,7 +116,9 @@ async def upload_scan(
     return OCRUploadResponse(
         message="OCR processing queued",
         ocr_result_id=ocr_result.id,
-        status=ocr_result.status.value if isinstance(ocr_result.status, OCRStatus) else str(ocr_result.status),
+        status=ocr_result.status.value
+        if isinstance(ocr_result.status, OCRStatus)
+        else str(ocr_result.status),
     )
 
 
@@ -120,7 +137,9 @@ async def get_ocr_result(
     if ocr_result is None:
         raise HTTPException(
             status_code=status.HTTP_404_NOT_FOUND,
-            detail={"error": {"code": "OCR_NOT_FOUND", "message": "OCR result not found"}},
+            detail={
+                "error": {"code": "OCR_NOT_FOUND", "message": "OCR result not found"}
+            },
         )
     return OCRResultResponse.model_validate(ocr_result)
 
@@ -164,7 +183,9 @@ async def apply_ocr_to_vehicle(
 ):
     """Apply OCR structured data to the linked vehicle."""
     try:
-        ocr_result, vehicle, updated_fields = await ocr_service.apply_to_vehicle(db, result_id)
+        ocr_result, vehicle, updated_fields = await ocr_service.apply_to_vehicle(
+            db, result_id
+        )
     except ValueError as exc:
         raise HTTPException(
             status_code=status.HTTP_400_BAD_REQUEST,