Add episode queueing picker and configurable mpv video output

Activating an episode now opens a scope picker (episode / season / whole
show) and plays the chosen queue back-to-back in one mpv instance, with
only the first item honoring its resume position. A new mpv `vo` driver
setting (CLI flag, env var, config file, and settings TUI) lets users
opt into terminal-based vos like sixel/kitty/tct, which auto-enable
mpv's terminal input so playback keys still work.

Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

src/settings.rs

@@ -20,14 +20,16 @@ enum Field {
     Password,
     AudioLang,
     SubtitleLang,
+    VideoOutput,
 }
 
-const FIELDS: [Field; 5] = [
+const FIELDS: [Field; 6] = [
     Field::Server,
     Field::User,
     Field::Password,
     Field::AudioLang,
     Field::SubtitleLang,
+    Field::VideoOutput,
 ];
 
 impl Field {
@@ -47,6 +49,7 @@ struct Form {
     password: String,
     audio_lang: String,
     subtitle_lang: String,
+    video_output: String,
     focus: Field,
     error: Option<String>,
 }
@@ -59,6 +62,7 @@ impl Form {
             password: cfg.password.clone(),
             audio_lang: cfg.audio_lang.clone().unwrap_or_default(),
             subtitle_lang: cfg.subtitle_lang.clone().unwrap_or_default(),
+            video_output: cfg.video_output.clone().unwrap_or_default(),
             focus: Field::Server,
             error: None,
         }
@@ -71,6 +75,7 @@ impl Form {
             Field::Password => &mut self.password,
             Field::AudioLang => &mut self.audio_lang,
             Field::SubtitleLang => &mut self.subtitle_lang,
+            Field::VideoOutput => &mut self.video_output,
         }
     }
 }
@@ -139,6 +144,7 @@ async fn apply(form: &mut Form, app: &mut App) -> Result<()> {
         password: form.password.clone(),
         audio_lang: trim_to_opt(&form.audio_lang),
         subtitle_lang: trim_to_opt(&form.subtitle_lang),
+        video_output: trim_to_opt(&form.video_output),
     };
 
     let creds_changed = new_cfg.server != app.config.server
@@ -208,6 +214,7 @@ fn draw(f: &mut ratatui::Frame, form: &Form) {
             Constraint::Length(3), // password
             Constraint::Length(3), // audio lang
             Constraint::Length(3), // subtitle lang
+            Constraint::Length(3), // video output
             Constraint::Min(1),    // error / help
         ])
         .split(inner);
@@ -253,6 +260,15 @@ fn draw(f: &mut ratatui::Frame, form: &Form) {
         ),
         rows[5],
     );
+    f.render_widget(
+        field_widget(
+            "Video output (gpu/sixel/kitty/drm/tct, blank=mpv default)",
+            &form.video_output,
+            form.focus == Field::VideoOutput,
+            false,
+        ),
+        rows[6],
+    );
 
     let footer = if let Some(err) = &form.error {
         Line::from(Span::styled(
@@ -265,5 +281,5 @@ fn draw(f: &mut ratatui::Frame, form: &Form) {
             Style::default().fg(Color::DarkGray),
         ))
     };
-    f.render_widget(Paragraph::new(footer), rows[6]);
+    f.render_widget(Paragraph::new(footer), rows[7]);
 }