Show poster thumbnails in the detail panes

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

internal/ui/backend.go

@@ -19,6 +19,7 @@ type result interface {
 	details() string
 	inLibrary() bool
 	withID(id int) result // copy flagged as added to the library
+	cover() coverRef
 }
 
 // monitorMode is a Sonarr-style "which episodes to monitor" choice.
@@ -50,13 +51,17 @@ type backend interface {
 
 // --- Radarr ---
 
-type movieResult struct{ radarr.Movie }
+type movieResult struct {
+	radarr.Movie
+	poster coverRef
+}
 
 func (m movieResult) key() string     { return radarr.TMDBTerm(m.TMDBID) }
 func (m movieResult) title() string   { return m.Title }
 func (m movieResult) label() string   { return movieLabel(m.Movie) }
 func (m movieResult) details() string { return movieDetails(m.Movie) }
 func (m movieResult) inLibrary() bool { return m.InLibrary() }
+func (m movieResult) cover() coverRef { return m.poster }
 func (m movieResult) withID(id int) result {
 	m.ID = id
 	return m
@@ -73,7 +78,7 @@ func (b radarrBackend) search(ctx context.Context, term string) ([]result, error
 	movies, err := b.c.Lookup(ctx, term)
 	out := make([]result, len(movies))
 	for i, m := range movies {
-		out[i] = movieResult{m}
+		out[i] = movieResult{Movie: m, poster: coverFor(b.c.Client, m.Images, m.InLibrary())}
 	}
 	return out, err
 }
@@ -97,13 +102,17 @@ func (b radarrBackend) interactive(v *searchView, r result) {
 
 // --- Sonarr ---
 
-type seriesResult struct{ sonarr.Series }
+type seriesResult struct {
+	sonarr.Series
+	poster coverRef
+}
 
 func (s seriesResult) key() string     { return "tvdb:" + itoa(s.TVDBID) }
 func (s seriesResult) title() string   { return s.Title }
 func (s seriesResult) label() string   { return seriesLabel(s.Series) }
 func (s seriesResult) details() string { return seriesDetails(s.Series) }
 func (s seriesResult) inLibrary() bool { return s.InLibrary() }
+func (s seriesResult) cover() coverRef { return s.poster }
 func (s seriesResult) withID(id int) result {
 	s.ID = id
 	return s
@@ -130,7 +139,7 @@ func (b sonarrBackend) search(ctx context.Context, term string) ([]result, error
 	series, err := b.c.Lookup(ctx, term)
 	out := make([]result, len(series))
 	for i, s := range series {
-		out[i] = seriesResult{s}
+		out[i] = seriesResult{Series: s, poster: coverFor(b.c.Client, s.Images, s.InLibrary())}
 	}
 	return out, err
 }