feat(storage): implement storage manager for centralized management and cleanup

- Added a new Storage Manager component to handle storage statistics, project cleanup, and configuration for CCW centralized storage.
- Introduced functions to calculate directory sizes, get project storage stats, and clean specific or all storage.
- Enhanced SQLiteStore with a public API for executing queries securely.
- Updated tests to utilize the new execute_query method and validate storage management functionalities.
- Improved performance by implementing connection pooling with idle timeout management in SQLiteStore.
- Added new fields (token_count, symbol_type) to the symbols table and adjusted related insertions.
- Enhanced error handling and logging for storage operations.

codex-lens/src/codexlens/semantic/chunker.py

@@ -111,6 +111,8 @@ class Chunker:
         avg_line_len = len(content) / max(len(lines), 1)
         lines_per_chunk = max(10, int(self.config.max_chunk_size / max(avg_line_len, 1)))
         overlap_lines = max(2, int(self.config.overlap / max(avg_line_len, 1)))
+        # Ensure overlap is less than chunk size to prevent infinite loop
+        overlap_lines = min(overlap_lines, lines_per_chunk - 1)
 
         start = 0
         chunk_idx = 0