App v0.2.27 and gateway 0.1.23

Skip Intro from Emby's own chapter markers, trickplay seek previews from
BIF files, a server-composed home hero ranked on Radarr/Sonarr dates and
review scores, and My Alerts as its own page behind the user picker.

Related titles now degrade at every step instead of returning empty, and
the "+" is back on Manage users so a second viewer can be added from the
launcher.

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

server/internal/api/features.go

@@ -19,6 +19,8 @@ const (
 	featureHEVCDirectPlay      = "hevc_direct_play"
 	featureInstallPermission   = "install_permission_prompt"
 	featureSubtitleDownload    = "subtitle_download"
+	featureTrickplay           = "trickplay"
+	featureSkipIntro           = "skip_intro"
 )
 
 type featureDefinition struct {
@@ -64,6 +66,20 @@ var featureCatalogue = []featureDefinition{
 		DefaultEnabled: true, MinimumProtocol: 1, Capability: "subtitle_download_v1",
 		Recovery: "Takes effect the next time playback starts; the option simply stops being offered.",
 	},
+	{
+		Key: featureTrickplay, Name: "Seek preview thumbnails", Area: "Playback",
+		Description: "Show the frame a skip will land on, from the preview images Emby " +
+			"generates. Turn it off to stop the gateway reading them.",
+		DefaultEnabled: true, MinimumProtocol: 1, Capability: "trickplay_v1",
+		Recovery: "Takes effect the next time playback starts; the preview simply stops appearing.",
+	},
+	{
+		Key: featureSkipIntro, Name: "Skip the title sequence", Area: "Playback",
+		Description: "Offer to jump past an episode's opening titles, from the intro " +
+			"markers Emby writes. Turn it off to stop the gateway reading them.",
+		DefaultEnabled: true, MinimumProtocol: 1, Capability: "skip_intro_v1",
+		Recovery: "Takes effect the next time playback starts; the button simply stops appearing.",
+	},
 	{
 		Key: featureInstallPermission, Name: "Ask TVs for install permission", Area: "Setup",
 		Description: "Ask a signed-in TV that cannot install its own updates to grant the " +