diff --git a/tests/conftest.py b/tests/conftest.py
deleted file mode 100644
index 68714c6..0000000
--- a/tests/conftest.py
+++ /dev/null
@@ -1,150 +0,0 @@
-"""
-pytest configuration and fixtures for LEANN tests.
-"""
-
-import os
-import signal
-import subprocess
-import sys
-
-import pytest
-
-
-def aggressive_cleanup():
-    """Aggressively clean up any hanging processes."""
-    try:
-        # Kill embedding servers
-        subprocess.run(["pkill", "-9", "-f", "embedding_server"], capture_output=True, timeout=2)
-        subprocess.run(["pkill", "-9", "-f", "hnsw_embedding"], capture_output=True, timeout=2)
-        subprocess.run(["pkill", "-9", "-f", "zmq"], capture_output=True, timeout=2)
-
-        print("🧹 [CLEANUP] Killed hanging processes")
-    except Exception as e:
-        print(f"⚠️ [CLEANUP] Failed to kill processes: {e}")
-
-
-def timeout_handler(signum, frame):
-    """Handle timeout signal for individual tests."""
-    print("\n💥 [TIMEOUT] Test exceeded individual timeout limit!")
-    print("🔍 [TIMEOUT] Current stack trace:")
-    import traceback
-
-    traceback.print_stack(frame)
-
-    # Cleanup before exit
-    aggressive_cleanup()
-
-    # Exit with timeout code
-    sys.exit(124)
-
-
-@pytest.fixture(autouse=True)
-def test_timeout_fixture():
-    """Automatically apply timeout to all tests in CI environment."""
-    if os.environ.get("CI") != "true":
-        yield
-        return
-
-    # Set up 3-minute timeout for individual tests
-    old_handler = signal.signal(signal.SIGALRM, timeout_handler)
-    signal.alarm(180)  # 3 minutes
-
-    try:
-        yield
-    finally:
-        # Cancel alarm and restore handler
-        signal.alarm(0)
-        signal.signal(signal.SIGALRM, old_handler)
-
-        # Cleanup after each test
-        aggressive_cleanup()
-
-
-@pytest.fixture(autouse=True)
-def ci_process_monitor():
-    """Monitor for hanging processes during CI tests."""
-    if os.environ.get("CI") != "true":
-        yield
-        return
-
-    import threading
-    import time
-
-    # Track test start time
-    start_time = time.time()
-    stop_monitor = threading.Event()
-
-    def monitor_processes():
-        """Background process to monitor for hangs."""
-        while not stop_monitor.wait(30):  # Check every 30 seconds
-            elapsed = time.time() - start_time
-
-            if elapsed > 120:  # Warn after 2 minutes
-                print(f"\n⚠️ [MONITOR] Test running for {elapsed:.1f}s")
-
-                # Check for suspicious processes
-                try:
-                    result = subprocess.run(
-                        ["pgrep", "-f", "embedding_server"],
-                        capture_output=True,
-                        text=True,
-                        timeout=5,
-                    )
-                    if result.stdout.strip():
-                        print(f"📍 [MONITOR] Found embedding servers: {result.stdout.strip()}")
-                except Exception:
-                    pass
-
-    # Start monitoring thread
-    monitor_thread = threading.Thread(target=monitor_processes, daemon=True)
-    monitor_thread.start()
-
-    try:
-        yield
-    finally:
-        # Stop monitoring
-        stop_monitor.set()
-
-
-def pytest_runtest_setup(item):
-    """Hook called before each test runs."""
-    if os.environ.get("CI") == "true":
-        print(f"\n🚀 [TEST] Starting: {item.nodeid}")
-
-
-def pytest_runtest_teardown(item, nextitem):
-    """Hook called after each test runs."""
-    if os.environ.get("CI") == "true":
-        print(f"✅ [TEST] Completed: {item.nodeid}")
-
-
-def pytest_collection_modifyitems(config, items):
-    """Skip problematic tests in CI or add timeouts."""
-    if os.environ.get("CI") != "true":
-        return
-
-    for item in items:
-        # Skip tests that are known to hang or take too long
-        if "test_backend_basic" in item.nodeid:
-            item.add_marker(pytest.mark.skip(reason="Skip backend tests in CI due to hanging"))
-        elif "test_document_rag" in item.nodeid:
-            item.add_marker(pytest.mark.skip(reason="Skip RAG tests in CI due to hanging"))
-        elif "diskann" in item.nodeid.lower():
-            # DiskANN tests seem to be problematic
-            item.add_marker(
-                pytest.mark.skip(reason="Skip DiskANN tests in CI due to chunking hangs")
-            )
-
-
-def pytest_sessionstart(session):
-    """Clean up at the start of the session."""
-    if os.environ.get("CI") == "true":
-        print("\n🧹 [SESSION] Starting with cleanup...")
-        aggressive_cleanup()
-
-
-def pytest_sessionfinish(session, exitstatus):
-    """Clean up at the end of the session."""
-    if os.environ.get("CI") == "true":
-        print(f"\n🧹 [SESSION] Ending with cleanup (exit: {exitstatus})...")
-        aggressive_cleanup()