chore: apply ruff formatting and fix whitespace issues

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

.github/instructions/documentation.instructions.md

@@ -177,8 +177,8 @@ Example:
 ```markdown
 ### OPENAI_API_KEY
 
-**Type:** String  
-**Required:** Yes  
+**Type:** String
+**Required:** Yes
 **Default:** None
 
 Your OpenAI API key for metadata extraction.

.github/instructions/frontend.instructions.md

@@ -22,13 +22,13 @@ These instructions apply to all files in the `frontend/` directory (templates, C
 {% block content %}
 <div class="container mx-auto px-4 py-8">
     <h1 class="text-2xl font-bold mb-4">{{ page_title }}</h1>
-    
+
     {% if error_message %}
     <div class="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4">
         {{ error_message }}
     </div>
     {% endif %}
-    
+
     <form method="post" enctype="multipart/form-data">
         <!-- Form content -->
     </form>
@@ -72,9 +72,9 @@ These instructions apply to all files in the `frontend/` directory (templates, C
         <label class="block text-gray-700 text-sm font-bold mb-2" for="file">
             Document File
         </label>
-        <input 
-            type="file" 
-            id="file" 
+        <input
+            type="file"
+            id="file"
             name="file"
             class="w-full px-3 py-2 border rounded"
             required

.github/instructions/python-backend.instructions.md

@@ -39,15 +39,15 @@ def process_document(
 ) -> DocumentMetadata:
     """
     Process a document and extract metadata.
-    
+
     Args:
         file_path: Path to the document file
         user_id: ID of the user uploading the document
         metadata: Optional additional metadata
-        
+
     Returns:
         DocumentMetadata object with extracted information
-        
+
     Raises:
         FileNotFoundError: If file doesn't exist
         ProcessingError: If processing fails
@@ -150,7 +150,7 @@ from pydantic_settings import BaseSettings
 class Settings(BaseSettings):
     openai_api_key: str
     max_file_size: int = 10485760  # 10MB default
-    
+
     class Config:
         env_file = ".env"
 ```

.github/instructions/testing.instructions.md

@@ -68,9 +68,9 @@ def db_session():
     Base.metadata.create_all(engine)
     Session = sessionmaker(bind=engine)
     session = Session()
-    
+
     yield session
-    
+
     session.close()
     Base.metadata.drop_all(engine)
 
@@ -99,7 +99,7 @@ def test_upload_document():
             "/api/documents/upload",
             files={"file": ("test.pdf", f, "application/pdf")}
         )
-    
+
     assert response.status_code == 201
     assert "id" in response.json()
 ```
@@ -131,12 +131,12 @@ def test_openai_metadata_extraction(mocker):
         "amount": 100.00,
         "date": "2024-01-01"
     }
-    
+
     mocker.patch(
         "app.utils.openai_client.extract_metadata",
         return_value=mock_response
     )
-    
+
     result = extract_document_metadata("test.pdf")
     assert result["document_type"] == "invoice"
 
@@ -144,12 +144,12 @@ def test_openai_metadata_extraction(mocker):
 def test_azure_ocr_processing(mocker):
     """Test OCR with mocked Azure service."""
     mock_text = "Sample extracted text"
-    
+
     mocker.patch(
         "app.utils.azure_client.extract_text",
         return_value=mock_text
     )
-    
+
     result = perform_ocr("test.pdf")
     assert result == mock_text
 ```
@@ -160,7 +160,7 @@ def test_azure_ocr_processing(mocker):
 def test_create_document(db_session):
     """Test document creation in database."""
     from app.models import Document
-    
+
     doc = Document(
         filename="test.pdf",
         user_id=1,
@@ -168,7 +168,7 @@ def test_create_document(db_session):
     )
     db_session.add(doc)
     db_session.commit()
-    
+
     assert doc.id is not None
     assert doc.filename == "test.pdf"
 ```
@@ -189,10 +189,10 @@ def test_document_validation():
         "filename": "",  # Empty filename
         "size": -1  # Invalid size
     }
-    
+
     # Act
     result = validate_document(invalid_document)
-    
+
     # Assert
     assert result.is_valid is False
     assert "filename" in result.errors