fix: remove obsolete update_current_project function and --project flag reference (#310)

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: Paul Hernandez <phernandez@users.noreply.github.com>

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
@@ -341,13 +341,6 @@ def save_basic_memory_config(file_path: Path, config: BasicMemoryConfig) -> None
         logger.error(f"Failed to save config: {e}")
 
 
-def update_current_project(project_name: str) -> None:
-    """Update the global config to use a different project.
-
-    This is used by the CLI when --project flag is specified.
-    """
-    global config
-    config = get_project_config(project_name)  # pragma: no cover
 
 
 # setup logging to a single log file in user home directory

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 @@ Testing file 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