feat: implement project management and media track handling

- Added domain entities for audio, subtitle, and video tracks.
- Created a Project entity to manage media editing sessions.
- Implemented value objects for file paths, sync offsets, track IDs, and languages.
- Developed infrastructure for asynchronous FFmpeg process execution.
- Built a user interface for selecting video files, adding audio and subtitle tracks, and managing output settings.
- Integrated error handling and logging for media processing tasks.

Cargo.toml

@@ -4,3 +4,9 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+eframe = "0.27"
+anyhow = "1"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+tokio = { version = "1", features = ["process", "rt-multi-thread", "macros", "io-util", "sync"] }
+rfd = "0.14"