refactor(bare): enhance security and performance optimizations

- Remove unnecessary sorting in advertise_refs for deterministic output
- Add path traversal detection and validation in bare_dir construction
- Implement symlink resolution checks to prevent security vulnerabilities
- Refactor cache system with CRC validation and improved metrics
- Integrate repo-specific cache invalidation using indexed keys
- Add comprehensive unit tests for commit operations and diff functionality
- Move configuration constants to centralized config module
- Optimize string operations in disk cache random value generation
- Enhance license detection algorithm with cleaner matching logic
- Streamline argument processing in various git operations
- Update dependencies including crc32fast and flate2 for performance
- Add signal handling capability to tokio runtime configuration

diff/raw.rs

@@ -19,7 +19,6 @@ impl GitBare {
         ];
 
         let mut pathspecs = Vec::new();
-        // Apply options if present
         if let Some(ref opts) = request.options {
             if opts.recursive {
                 args.push("--recursive".to_string());
@@ -64,7 +63,6 @@ impl GitBare {
             )));
         }
 
-        // Chunk the output for streaming
         const CHUNK_SIZE: usize = 32768;
         let data = output.stdout;
         let chunks: Vec<RawDiffResponse> = data