refactor(knowledge-base mcp server): adjust formatting for consistency and readability

Improved code formatting, line breaks, and indentation across chunking logic and multiple test modules to enhance code clarity and maintain consistent style. No functional changes made.

mcp-servers/knowledge-base/tests/test_chunking.py

@@ -1,7 +1,6 @@
 """Tests for chunking module."""
 
 
-
 class TestBaseChunker:
     """Tests for base chunker functionality."""
 
@@ -149,7 +148,7 @@ class TestMarkdownChunker:
         """Test that chunker respects heading hierarchy."""
         from chunking.markdown import MarkdownChunker
 
-        markdown = '''# Main Title
+        markdown = """# Main Title
 
 Introduction paragraph.
 
@@ -164,7 +163,7 @@ More detailed content.
 ## Section Two
 
 Content for section two.
-'''
+"""
 
         chunker = MarkdownChunker(
             chunk_size=200,
@@ -188,7 +187,7 @@ Content for section two.
         """Test handling of code blocks in markdown."""
         from chunking.markdown import MarkdownChunker
 
-        markdown = '''# Code Example
+        markdown = """# Code Example
 
 Here's some code:
 
@@ -198,7 +197,7 @@ def hello():
 ```
 
 End of example.
-'''
+"""
 
         chunker = MarkdownChunker(
             chunk_size=500,
@@ -256,12 +255,12 @@ class TestTextChunker:
         """Test that chunker respects paragraph boundaries."""
         from chunking.text import TextChunker
 
-        text = '''First paragraph with some content.
+        text = """First paragraph with some content.
 
 Second paragraph with different content.
 
 Third paragraph to test chunking behavior.
-'''
+"""
 
         chunker = TextChunker(
             chunk_size=100,