Update dependencies and enhance pattern handling

- Added `tracing-appender` and `log` dependencies to improve error logging.
- Enhanced `walk.rs` to add error handling with warning logs for ignore patterns.
- Expanded Rust and JavaScript patterns with additional security vulnerability checks.
- Simplified and updated pattern queries for improved accuracy and consistency.
- Removed unused print statement in `index.rs`.

src/commands/index.rs

@@ -43,6 +43,5 @@ pub fn build_index(
 ) -> Result<(), Box<dyn std::error::Error>> {
     // TODO: Implement actual index building
     fs::File::create(db_path)?;
-    println!("Index building logic goes here...");
     Ok(())
 }