refactor(config): remove unused deps, add encoded path

- Removed unused dependencies from Cargo.lock for a leaner build
- Added encoded_local_path to ProxyConfig for Windows path handling
- Implemented encode_path to detect and store colon encoding in paths
- Updated main_loop to mutate config and capture encoded path after PID patch
- Fixed test coverage for Windows-specific path normalization and encoding
- Ensured redirect_uri uses encoded_local_path when present for URI translation

Author: richardhapb