Refactor TypeScript and Zig parsing strategies to utilize tree-sitter for improved parsing accuracy and performance. Remove regex-based fallback in Zig strategy. Introduce centralized file filtering logic to streamline file processing across services. Update file watcher service to leverage new filtering methods, enhancing exclusion handling for directories and files. Add utility functions for file filtering and update project configuration tool to reflect changes in supported extensions and filtering logic.

Author: johnhuang316