feat: add CI timeout protection for tests

tests/test_readme_examples.py

@@ -8,9 +8,11 @@ import tempfile
 from pathlib import Path
 
 import pytest
+from test_timeout import ci_timeout
 
 
 @pytest.mark.parametrize("backend_name", ["hnsw", "diskann"])
+@ci_timeout(90)  # 90 second timeout for this comprehensive test
 def test_readme_basic_example(backend_name):
     """Test the basic example from README.md with both backends."""
     # Skip on macOS CI due to MPS environment issues with all-MiniLM-L6-v2
@@ -79,6 +81,7 @@ def test_readme_imports():
     assert callable(LeannChat)
 
 
+@ci_timeout(60)  # 60 second timeout
 def test_backend_options():
     """Test different backend options mentioned in documentation."""
     # Skip on macOS CI due to MPS environment issues with all-MiniLM-L6-v2
@@ -115,6 +118,7 @@ def test_backend_options():
 
 
 @pytest.mark.parametrize("backend_name", ["hnsw", "diskann"])
+@ci_timeout(75)  # 75 second timeout for LLM tests
 def test_llm_config_simulated(backend_name):
     """Test simulated LLM configuration option with both backends."""
     # Skip on macOS CI due to MPS environment issues with all-MiniLM-L6-v2