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

src/player/mod.rs

@@ -0,0 +1,38 @@
+// Player module - MPV integration placeholder
+// Full implementation in Phase 3
+
+use anyhow::Result;
+use std::path::Path;
+
+pub struct Player {
+    // MPV instance will be added in Phase 3
+}
+
+impl Player {
+    pub fn new() -> Result<Self> {
+        Ok(Self {})
+    }
+
+    pub fn play(&mut self, _path: &Path) -> Result<()> {
+        // TODO: Implement MPV playback in Phase 3
+        tracing::info!("Play called (not yet implemented)");
+        Ok(())
+    }
+
+    pub fn pause(&mut self) -> Result<()> {
+        // TODO: Implement pause in Phase 3
+        tracing::info!("Pause called (not yet implemented)");
+        Ok(())
+    }
+
+    pub fn stop(&mut self) -> Result<()> {
+        // TODO: Implement stop in Phase 3
+        tracing::info!("Stop called (not yet implemented)");
+        Ok(())
+    }
+
+    pub fn set_volume(&mut self, _volume: i64) -> Result<()> {
+        // TODO: Implement volume control in Phase 3
+        Ok(())
+    }
+}