refactor: split runtime out of main.rs and fix native playback metada…

…ta (#218)

CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## [Unreleased]
+
+### Fixed
+
+- **Native streaming metadata freshness**: Kept native player track metadata authoritative while Spotify's playback API is still catching up, preventing stale API responses from overwriting the current native track and suppressing duplicate song-count, lyrics, and saved-track checks for stale items.
+
+### Internal
+
+- **Runtime module split**: Moved authentication, runtime startup, TUI runner, native player event handling, and shared playback metadata extraction out of the monolithic `main.rs` into focused `core`, `infra`, and `tui` modules.
+- **Playback integration metadata sharing**: Centralized playback snapshot construction for Discord RPC, MPRIS, and macOS media integrations so native streaming and Spotify API metadata are resolved consistently.
+- **Module path cleanup**: Updated imports to use the current `core`, `infra`, and `tui` module paths after the runtime split.
+
 ## [v0.38.1] - 2026-04-24
 
 ### Added

src/cli/util.rs

@@ -252,7 +252,7 @@ impl Format {
       Self::Position((curr, duration)) => {
         let current_progress_ms = *curr as u128;
         let duration = Duration::from_millis(*duration as u64);
-        crate::ui::util::display_track_progress(current_progress_ms, duration)
+        crate::tui::ui::util::display_track_progress(current_progress_ms, duration)
       }
       Self::Flags((r, s, l)) => {
         let like = if *l {

src/core/app.rs

@@ -811,10 +811,10 @@ pub struct App {
   pub is_volume_change_in_flight: bool,
   /// Reference to the native streaming player for direct control (bypasses event channel)
   #[cfg(feature = "streaming")]
-  pub streaming_player: Option<Arc<crate::player::StreamingPlayer>>,
+  pub streaming_player: Option<Arc<crate::infra::player::StreamingPlayer>>,
   /// Reference to MPRIS manager for emitting Seeked signals after native seeks
   #[cfg(all(feature = "mpris", target_os = "linux"))]
-  pub mpris_manager: Option<Arc<crate::mpris::MprisManager>>,
+  pub mpris_manager: Option<Arc<crate::infra::mpris::MprisManager>>,
 
   // Create Playlist form state
   pub create_playlist_name: Vec<char>,
@@ -2834,7 +2834,7 @@ impl App {
           // Notify MPRIS clients of the change
           #[cfg(all(feature = "mpris", target_os = "linux"))]
           if let Some(ref mpris) = self.mpris_manager {
-            use crate::mpris::LoopStatusEvent;
+            use crate::infra::mpris::LoopStatusEvent;
             let loop_status = match next_repeat_state {
               RepeatState::Off => LoopStatusEvent::None,
               RepeatState::Context => LoopStatusEvent::Playlist,