fix: update warning message and increase Windows timestamp tolerance

- Remove obsolete --project flag reference from BASIC_MEMORY_PROJECT warning
- Increase timestamp tolerance to 2s for Windows in test_sync_preserves_timestamps
- Windows filesystem timing precision requires larger tolerance than Unix systems

Co-authored-by: Paul Hernandez <phernandez@users.noreply.github.com>

Author: github-actions[bot]

src/basic_memory/config.py

@@ -310,7 +310,7 @@ def get_project_config(project_name: Optional[str] = None) -> ProjectConfig:
     os_project_name = os.environ.get("BASIC_MEMORY_PROJECT", None)
     if os_project_name:  # pragma: no cover
         logger.warning(
-            f"BASIC_MEMORY_PROJECT is not supported anymore. Use the --project flag or set the default project in the config instead. Setting default project to {os_project_name}"
+            f"BASIC_MEMORY_PROJECT is not supported anymore. Set the default project in the config instead. Setting default project to {os_project_name}"
         )
         actual_project_name = project_name
     # if the project_name is passed in, use it

tests/sync/test_sync_service.py

@@ -1,6 +1,7 @@
 """Test general sync behavior."""
 
 import asyncio
+import os
 from datetime import datetime, timezone
 from pathlib import Path
 from textwrap import dedent
@@ -637,8 +638,10 @@ async def test_sync_preserves_timestamps(
     entity_created_epoch = file_entity.created_at.timestamp()
     entity_updated_epoch = file_entity.updated_at.timestamp()
 
-    assert abs(entity_created_epoch - file_stats.st_ctime) < 1
-    assert abs(entity_updated_epoch - file_stats.st_mtime) < 1  # Allow 1s difference
+    # Allow 2s difference on Windows due to filesystem timing precision
+    tolerance = 2 if os.name == 'nt' else 1
+    assert abs(entity_created_epoch - file_stats.st_ctime) < tolerance
+    assert abs(entity_updated_epoch - file_stats.st_mtime) < tolerance  # Allow tolerance difference
 
 
 @pytest.mark.asyncio