b75914b8ca
Changes: - CheckStaleness now returns errors for corrupted last_import_time metadata instead of silently returning false (bd-o4qy) - Added handling for empty string metadata (memory store behavior) - Enhanced warning messages when staleness check fails to be more explicit that operation continues with potentially stale data (bd-n4td) - Added test coverage for corrupted metadata scenario Closes bd-2q6d, bd-o4qy, bd-n4td 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>