fix: Apply pre-commit hooks formatting fixes

- Remove trailing whitespace from all files
- Fix ruff formatting issues (2 errors resolved)
- Apply consistent code formatting across 3 files
- Ensure all files pass pre-commit validation

This resolves all CI formatting failures.

examples/mcp_integration_demo.py

@@ -19,7 +19,6 @@ from pathlib import Path
 sys.path.append(str(Path(__file__).parent.parent))
 
 
-
 async def demo_slack_mcp():
     """Demonstrate Slack MCP integration."""
     print("=" * 60)

tests/test_mcp_integration.py

@@ -13,8 +13,8 @@ from pathlib import Path
 sys.path.append(str(Path(__file__).parent.parent))
 
 from apps.slack_data.slack_mcp_reader import SlackMCPReader
-from apps.twitter_data.twitter_mcp_reader import TwitterMCPReader
 from apps.slack_rag import SlackMCPRAG
+from apps.twitter_data.twitter_mcp_reader import TwitterMCPReader
 from apps.twitter_rag import TwitterMCPRAG
 
 
@@ -33,7 +33,7 @@ def test_slack_reader_initialization():
         "custom-slack-server",
         workspace_name="test-workspace",
         concatenate_conversations=False,
-        max_messages_per_conversation=50
+        max_messages_per_conversation=50,
     )
     assert reader.workspace_name == "test-workspace"
     assert not reader.concatenate_conversations
@@ -59,7 +59,7 @@ def test_twitter_reader_initialization():
         username="testuser",
         include_tweet_content=False,
         include_metadata=False,
-        max_bookmarks=500
+        max_bookmarks=500,
     )
     assert reader.username == "testuser"
     assert not reader.include_tweet_content
@@ -80,7 +80,7 @@ def test_slack_message_formatting():
         "text": "Hello, world!",
         "user": "john_doe",
         "channel": "general",
-        "ts": "1234567890.123456"
+        "ts": "1234567890.123456",
     }
 
     formatted = reader._format_message(message)
@@ -110,7 +110,7 @@ def test_twitter_bookmark_formatting():
         "created_at": "2024-01-01T12:00:00Z",
         "url": "https://twitter.com/ai_researcher/status/123456789",
         "likes": 42,
-        "retweets": 15
+        "retweets": 15,
     }
 
     formatted = reader._format_bookmark(bookmark)
@@ -137,7 +137,7 @@ def test_slack_rag_initialization():
 
     app = SlackMCPRAG()
     assert app.default_index_name == "slack_messages"
-    assert hasattr(app, 'parser')
+    assert hasattr(app, "parser")
 
     print("✅ SlackMCPRAG initialization tests passed")
 
@@ -148,7 +148,7 @@ def test_twitter_rag_initialization():
 
     app = TwitterMCPRAG()
     assert app.default_index_name == "twitter_bookmarks"
-    assert hasattr(app, 'parser')
+    assert hasattr(app, "parser")
 
     print("✅ TwitterMCPRAG initialization tests passed")
 
@@ -162,7 +162,7 @@ def test_concatenated_content_creation():
     messages = [
         {"text": "First message", "user": "alice", "ts": "1000"},
         {"text": "Second message", "user": "bob", "ts": "2000"},
-        {"text": "Third message", "user": "charlie", "ts": "3000"}
+        {"text": "Third message", "user": "charlie", "ts": "3000"},
     ]
 
     content = reader._create_concatenated_content(messages, "general")

tests/test_mcp_standalone.py

@@ -6,8 +6,8 @@ This script tests the basic functionality of the MCP readers
 without requiring LEANN core dependencies.
 """
 
-import sys
 import json
+import sys
 from pathlib import Path
 
 # Add the parent directory to the path so we can import from apps
@@ -30,7 +30,7 @@ def test_slack_reader_basic():
         "text": "Hello team! How's the project going?",
         "user": "john_doe",
         "channel": "general",
-        "ts": "1234567890.123456"
+        "ts": "1234567890.123456",
     }
 
     formatted = reader._format_message(message)
@@ -41,7 +41,7 @@ def test_slack_reader_basic():
     # Test concatenated content creation
     messages = [
         {"text": "First message", "user": "alice", "ts": "1000"},
-        {"text": "Second message", "user": "bob", "ts": "2000"}
+        {"text": "Second message", "user": "bob", "ts": "2000"},
     ]
 
     content = reader._create_concatenated_content(messages, "dev-team")
@@ -74,7 +74,7 @@ def test_twitter_reader_basic():
         "retweets": 42,
         "replies": 23,
         "hashtags": ["AI", "tech", "future"],
-        "mentions": ["@openai", "@anthropic"]
+        "mentions": ["@openai", "@anthropic"],
     }
 
     formatted = reader._format_bookmark(bookmark)
@@ -108,8 +108,8 @@ def test_mcp_request_format():
         "params": {
             "protocolVersion": "2024-11-05",
             "capabilities": {},
-            "clientInfo": {"name": "leann-slack-reader", "version": "1.0.0"}
-        }
+            "clientInfo": {"name": "leann-slack-reader", "version": "1.0.0"},
+        },
     }
 
     # Verify it's valid JSON
@@ -120,12 +120,7 @@ def test_mcp_request_format():
     assert parsed["params"]["protocolVersion"] == "2024-11-05"
 
     # Test tools/list request
-    list_request = {
-        "jsonrpc": "2.0",
-        "id": 2,
-        "method": "tools/list",
-        "params": {}
-    }
+    list_request = {"jsonrpc": "2.0", "id": 2, "method": "tools/list", "params": {}}
 
     json_str = json.dumps(list_request)
     parsed = json.loads(json_str)
@@ -147,7 +142,7 @@ def test_data_processing():
     messages_with_timestamps = [
         {"text": "Meeting in 5 minutes", "user": "alice", "ts": "1000.123"},
         {"text": "On my way!", "user": "bob", "ts": "1001.456"},
-        {"text": "Starting now", "user": "charlie", "ts": "1002.789"}
+        {"text": "Starting now", "user": "charlie", "ts": "1002.789"},
     ]
 
     content = slack_reader._create_concatenated_content(messages_with_timestamps, "meetings")
@@ -163,7 +158,7 @@ def test_data_processing():
         "author": "startup_founder",
         "likes": 1250,
         "retweets": 340,
-        "replies": 89
+        "replies": 89,
     }
 
     formatted = twitter_reader._format_bookmark(high_engagement_bookmark)
@@ -217,6 +212,7 @@ def main():
     except Exception as e:
         print(f"\n❌ Test failed: {e}")
         import traceback
+
         traceback.print_exc()
         sys.exit(1)