Detail panes: poster top right, title and facts left, plot below; sextant rendering

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/config/config.go

@@ -32,6 +32,12 @@ type UI struct {
 	// Posters of titles that are not in the library yet are downloaded from
 	// the public image hosts Radarr/Sonarr point to (TMDb, TheTVDB).
 	Covers *bool `json:"covers,omitempty"`
+	// CoverStyle selects the block characters posters are drawn with:
+	// "quadrant" (2x2 pixels per cell, every font has the glyphs), "sextant"
+	// (2x3, sharper, needs a font with the Symbols for Legacy Computing
+	// block, e.g. kitty, WezTerm, foot, Ghostty) or "auto" (default: sextant
+	// on terminals known to draw them, quadrant elsewhere).
+	CoverStyle string `json:"cover_style,omitempty"`
 }
 
 // ShowCovers reports whether poster thumbnails are enabled.
@@ -146,5 +152,10 @@ func (c *Config) Validate() error {
 			errs = append(errs, fmt.Errorf("%s: url %q must be an http(s) URL", s.name, s.svc.URL))
 		}
 	}
+	switch c.UI.CoverStyle {
+	case "", "auto", "quadrant", "sextant":
+	default:
+		errs = append(errs, fmt.Errorf(`ui.cover_style: %q must be "auto", "quadrant" or "sextant"`, c.UI.CoverStyle))
+	}
 	return errors.Join(errs...)
 }