Feat: add hidden mode and new documentation

src/app/persistence.rs

@@ -1,3 +1,5 @@
+//! Project and settings save/load.
+
 use std::collections::HashMap;
 use std::path::PathBuf;
 use std::sync::Arc;
@@ -10,6 +12,7 @@ use crate::state::StagedChange;
 use super::App;
 
 impl App {
+    /// Persist user preferences (audio, display, link, MIDI) via confy.
     pub fn save_settings(&self, link: &LinkState) {
         let settings = Settings {
             audio: crate::settings::AudioSettings {
@@ -72,8 +75,12 @@ impl App {
         settings.save();
     }
 
+    /// Flush the editor, capture playing state, and write the project file.
     pub fn save(&mut self, path: PathBuf, link: &LinkState, snapshot: &SequencerSnapshot) {
         self.save_editor_to_step();
+        if self.page == crate::page::Page::Script {
+            self.save_script_from_editor();
+        }
         self.project_state.project.sample_paths = self.audio.config.sample_paths.clone();
         self.project_state.project.tempo = link.tempo();
         self.project_state.project.playing_patterns = snapshot
@@ -105,6 +112,7 @@ impl App {
         }
     }
 
+    /// Replace the current project, reset undo/variables, recompile, and restore playing patterns.
     fn apply_project(&mut self, project: model::Project, label: String, link: &LinkState) {
         let tempo = project.tempo;
         let playing = project.playing_patterns.clone();
@@ -122,6 +130,8 @@ impl App {
         self.dict.lock().clear();
 
         self.evaluate_prelude(link);
+        self.load_script_to_editor();
+        self.script_editor.dirty = true;
 
         for (bank, pattern) in playing {
             self.playback.queued_changes.push(StagedChange {