style: apply ruff auto-fix

- Auto-formatted code with ruff format
- Applied ruff linting fixes with --fix

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

app/tasks/process_document.py

@@ -14,9 +14,6 @@ from app.config import settings
 from app.database import SessionLocal
 from app.models import FileRecord
 from app.tasks.extract_metadata_with_gpt import extract_metadata_with_gpt
-from app.tasks.process_with_azure_document_intelligence import (
-    process_with_azure_document_intelligence,
-)
 from app.tasks.process_with_ocr import process_with_ocr
 from app.tasks.retry_config import BaseTaskWithRetry
 from app.utils import get_unique_filepath_with_counter, hash_file, log_task_progress

app/utils/ocr_provider.py

@@ -102,7 +102,6 @@ class AzureOCRProvider(OCRProvider):
     name = "azure"
 
     def process(self, file_path: str) -> OCRResult:
-        import azure.core.exceptions
         from azure.ai.documentintelligence import DocumentIntelligenceClient
         from azure.ai.documentintelligence.models import AnalyzeOutputOption
         from azure.core.credentials import AzureKeyCredential
@@ -390,7 +389,7 @@ class AWSTextractOCRProvider(OCRProvider):
 
         if not aws_access_key_id or not aws_secret_access_key:
             raise ValueError(
-                "AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY must be set " "when using the AWS Textract OCR provider."
+                "AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY must be set when using the AWS Textract OCR provider."
             )
 
         logger.info(f"[AWSTextract] Processing {os.path.basename(file_path)} (region={region})")