Implement Phase 1: Foundation and cache system

- Add Cargo project with TUI and async dependencies
- Implement cache-only architecture for low bandwidth operation
- Add file scanner with media type detection
- Create two-panel TUI layout (file tree and status)
- Add config file support for scan path management
- Implement XDG-compliant cache and config directories
- Add Gitea CI/CD workflow for automated releases

.gitignore

@@ -0,0 +1,2 @@
+/target
+Cargo.lock