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

Cargo.toml

@@ -0,0 +1,38 @@
+[package]
+name = "cm-player"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+# TUI
+ratatui = "0.28"
+crossterm = "0.28"
+
+# Async runtime
+tokio = { version = "1.40", features = ["full"] }
+
+# Serialization
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+toml = "0.8"
+
+# File system
+walkdir = "2.5"
+dirs = "5.0"
+
+# MPV player
+libmpv = "2.0"
+
+# Error handling
+anyhow = "1.0"
+thiserror = "1.0"
+
+# Logging
+tracing = "0.1"
+tracing-subscriber = "0.3"
+
+[profile.release]
+opt-level = 3
+lto = true
+codegen-units = 1
+strip = true