fix(mcp): Move all imports to the top of modules

tests/integration/client/test_document_processing_progress.py

@@ -1,6 +1,7 @@
 """Integration tests for document processing with progress notifications."""
 
 import io
+import os
 
 import pytest
 from PIL import Image
@@ -13,7 +14,6 @@ class TestDocumentProcessingProgress:
 
     async def test_unstructured_processor_with_progress_callback(self, nc_client):
         """Test that UnstructuredProcessor calls progress callback during processing."""
-        import os
 
         # Skip if unstructured is not enabled
         if os.getenv("ENABLE_UNSTRUCTURED", "false").lower() != "true":
@@ -71,7 +71,6 @@ class TestDocumentProcessingProgress:
         self, nc_mcp_client, nc_client
     ):
         """Test that reading a document via WebDAV MCP tool sends progress notifications."""
-        import os
 
         # Skip if document processing is not enabled
         if os.getenv("ENABLE_DOCUMENT_PROCESSING", "false").lower() != "true":
@@ -110,7 +109,6 @@ class TestDocumentProcessingProgress:
 
     async def test_progress_callback_not_required(self, nc_client):
         """Test that processing works without progress callback (backward compatibility)."""
-        import os
 
         if os.getenv("ENABLE_UNSTRUCTURED", "false").lower() != "true":
             pytest.skip("Unstructured processor not enabled")

tests/integration/test_astrolabe_multi_user_background_sync.py

@@ -13,6 +13,8 @@ app password entry → background sync activation → database verification.
 """
 
 import logging
+import re
+import subprocess
 
 import anyio
 import pytest
@@ -151,7 +153,6 @@ async def generate_app_password(
         )
 
     # Validate password format before returning
-    import re
 
     if not re.match(
         r"^[a-zA-Z0-9]{5}-[a-zA-Z0-9]{5}-[a-zA-Z0-9]{5}-[a-zA-Z0-9]{5}-[a-zA-Z0-9]{5}$",
@@ -350,7 +351,6 @@ async def verify_app_password_created(username: str) -> bool:
 
     # Query the database to check for background sync credentials
     # Astrolabe stores app passwords in oc_preferences, not oc_authtoken
-    import subprocess
 
     query = f"""
     SELECT userid, configkey, configvalue

tests/integration/test_sampling.py

@@ -16,6 +16,7 @@ vector database with indexed test data.
 import json
 from unittest.mock import MagicMock
 
+import anyio
 import pytest
 from mcp.types import CreateMessageResult, TextContent
 
@@ -67,7 +68,6 @@ async def test_semantic_search_answer_successful_sampling(
     await require_vector_sync_tools(nc_mcp_client)
 
     # Get initial indexed count before creating note
-    import asyncio
 
     initial_sync = await nc_mcp_client.call_tool(
         "nc_get_vector_sync_status", arguments={}
@@ -118,7 +118,7 @@ Avoid blocking operations in async code.""",
             )
             break
 
-        await asyncio.sleep(wait_interval)
+        await anyio.sleep(wait_interval)
         waited += wait_interval
 
     # Verify sync completed
@@ -247,7 +247,6 @@ async def test_semantic_search_answer_with_limit(nc_mcp_client, temporary_note_f
     )
 
     # Wait for vector indexing to complete
-    import asyncio
 
     max_wait = 30
     wait_interval = 1
@@ -262,7 +261,7 @@ async def test_semantic_search_answer_with_limit(nc_mcp_client, temporary_note_f
         if status_data["status"] == "idle" and status_data["pending_count"] == 0:
             break
 
-        await asyncio.sleep(wait_interval)
+        await anyio.sleep(wait_interval)
         waited += wait_interval
 
     assert waited < max_wait, f"Vector sync did not complete within {max_wait} seconds"
@@ -306,7 +305,6 @@ async def test_semantic_search_answer_score_threshold(
     )
 
     # Wait for vector indexing to complete
-    import asyncio
 
     max_wait = 30
     wait_interval = 1
@@ -321,7 +319,7 @@ async def test_semantic_search_answer_score_threshold(
         if status_data["status"] == "idle" and status_data["pending_count"] == 0:
             break
 
-        await asyncio.sleep(wait_interval)
+        await anyio.sleep(wait_interval)
         waited += wait_interval
 
     assert waited < max_wait, f"Vector sync did not complete within {max_wait} seconds"
@@ -371,7 +369,6 @@ async def test_semantic_search_answer_max_tokens(nc_mcp_client, temporary_note_f
     )
 
     # Wait for vector indexing to complete
-    import asyncio
 
     max_wait = 30
     wait_interval = 1
@@ -386,7 +383,7 @@ async def test_semantic_search_answer_max_tokens(nc_mcp_client, temporary_note_f
         if status_data["status"] == "idle" and status_data["pending_count"] == 0:
             break
 
-        await asyncio.sleep(wait_interval)
+        await anyio.sleep(wait_interval)
         waited += wait_interval
 
     assert waited < max_wait, f"Vector sync did not complete within {max_wait} seconds"

tests/integration/test_semantic_search.py

@@ -10,6 +10,7 @@ Uses SimpleEmbeddingProvider for deterministic, in-process embeddings
 without requiring external services like Ollama.
 """
 
+import math
 import tempfile
 from pathlib import Path
 
@@ -147,7 +148,6 @@ async def test_simple_embedding_provider_deterministic(simple_embedding_provider
     assert len(embedding1) == 384
 
     # Should be normalized (unit length)
-    import math
 
     norm = math.sqrt(sum(x * x for x in embedding1))
     assert abs(norm - 1.0) < 1e-6
@@ -340,7 +340,6 @@ async def test_batch_embedding(simple_embedding_provider: SimpleEmbeddingProvide
     assert all(len(emb) == 384 for emb in embeddings)
 
     # Each should be normalized
-    import math
 
     for emb in embeddings:
         norm = math.sqrt(sum(x * x for x in emb))