App v0.2.26 and gateway 0.1.20

Client: seek controls, Bazarr subtitle download and cast panel in the
player; MDBList ratings strip; episode and schedule detail pages; series
pace estimate; what's new panel; install-permission onboarding step;
synced per-profile preferences; Emby outage banner.

Gateway: rebuilt admin console (one fragment per page), preference
history and restore, merged Continue Watching, Emby health probe,
subtitle selection and Bazarr download, structured request logging with
per-request identity, and embedded build version.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

server/internal/api/subtitles_test.go

@@ -0,0 +1,96 @@
+package api
+
+import "testing"
+
+func TestNormalizeSubtitleLanguage(t *testing.T) {
+	cases := map[string]string{
+		"ita":   "it",
+		"ITA":   "it",
+		" it ":  "it",
+		"fre":   "fr",
+		"fra":   "fr",
+		"pt-BR": "pt",
+		"zho":   "zh",
+		"":      "",
+		// Unknown codes survive as themselves so an exact match still works for a
+		// language the catalogue has no entry for.
+		"klingon": "klingon",
+	}
+	for input, want := range cases {
+		if got := normalizeSubtitleLanguage(input); got != want {
+			t.Fatalf("normalizeSubtitleLanguage(%q) = %q, want %q", input, got, want)
+		}
+	}
+}
+
+func TestSubtitleLanguageOptionsAreLegalPreferenceValues(t *testing.T) {
+	definition, ok := preferenceDefinitionFor("subtitleLanguage")
+	if !ok {
+		t.Fatal("subtitleLanguage is missing from the catalogue")
+	}
+	if got := normalizePreference(definition, "it"); got != "it" {
+		t.Fatalf("Italian was rejected by the catalogue: %v", got)
+	}
+	if got := normalizePreference(definition, "nonsense"); got != subtitleLanguageAuto {
+		t.Fatalf("an illegal language became %v, want the default", got)
+	}
+	if got := normalizePreferences(map[string]any{})["subtitlesEnabled"]; got != true {
+		t.Fatalf("subtitlesEnabled defaulted to %v, want true", got)
+	}
+}
+
+func TestSelectSubtitleOffMeansOff(t *testing.T) {
+	subtitles := []playableSubtitle{{ID: "1", Language: "eng", IsDefault: true}}
+	if got := selectSubtitle(subtitles, false, "en"); got != "" {
+		t.Fatalf("selected %q with subtitles turned off", got)
+	}
+}
+
+func TestSelectSubtitlePrefersChosenLanguage(t *testing.T) {
+	subtitles := []playableSubtitle{
+		{ID: "1", Language: "eng", IsDefault: true},
+		{ID: "2", Language: "ita", IsForced: true},
+		{ID: "3", Language: "ita", IsHearingImpaired: true},
+		{ID: "4", Language: "ita"},
+	}
+	// The full Italian track, not the forced one that comes first and not the SDH one.
+	if got := selectSubtitle(subtitles, true, "it"); got != "4" {
+		t.Fatalf("selectSubtitle picked %q, want the full Italian track", got)
+	}
+}
+
+func TestSelectSubtitleMissingLanguageFallsBackToForcedOnly(t *testing.T) {
+	withForced := []playableSubtitle{
+		{ID: "1", Language: "eng", IsDefault: true},
+		{ID: "2", Language: "eng", IsForced: true},
+	}
+	if got := selectSubtitle(withForced, true, "it"); got != "2" {
+		t.Fatalf("selectSubtitle picked %q, want the forced track", got)
+	}
+	// No forced track and no Italian: nothing, rather than English the viewer never asked
+	// for.
+	withoutForced := []playableSubtitle{{ID: "1", Language: "eng", IsDefault: true}}
+	if got := selectSubtitle(withoutForced, true, "it"); got != "" {
+		t.Fatalf("selectSubtitle picked %q, want nothing", got)
+	}
+}
+
+func TestSelectSubtitleAutomaticKeepsFlagOrder(t *testing.T) {
+	subtitles := []playableSubtitle{
+		{ID: "1", Language: "eng"},
+		{ID: "2", Language: "eng", IsDefault: true},
+		{ID: "3", Language: "eng", IsForced: true},
+	}
+	if got := selectSubtitle(subtitles, true, subtitleLanguageAuto); got != "3" {
+		t.Fatalf("automatic picked %q, want the forced track", got)
+	}
+	if got := selectSubtitle(subtitles[:2], true, ""); got != "2" {
+		t.Fatalf("automatic picked %q, want the default track", got)
+	}
+	if got := selectSubtitle(subtitles[:1], true, subtitleLanguageAuto); got != "1" {
+		t.Fatalf("automatic picked %q, want the only track", got)
+	}
+	if got := selectSubtitle(nil, true, subtitleLanguageAuto); got != "" {
+		t.Fatalf("automatic picked %q with no tracks", got)
+	}
+}