v0.248.0: i18n slice 1 release A — apps and settings in English, Hungarian byte-identical (R-556)

Ten pages converted against fixtures captured from unconverted templates (6be55a0); marker
coverage test; English page mask narrowed; English retrieval-promise stems; common keys;
title keys and infraMeta from the bundle; old wording tests read the Hungarian expansion.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

controller/internal/web/handlers.go

@@ -176,6 +176,7 @@ func (s *Server) dashboardHandler(w http.ResponseWriter, r *http.Request) {
 	sysInfo := system.GetInfo(s.primaryHDDPath(), s.cpuCollector)
 
 	data := s.baseData("dashboard", "Vezérlőpult")
+	data["TitleKey"] = "page.title.dashboard" // i18n: the Hungarian title above is what hu renders
 	s.addRecoveryBanner(data, r)                     // R-241: the reminder bar, per visit
 	data["SettingsWarning"] = s.settings.LoadWarning // non-empty if settings.json was recovered from corruption
 	data["Stacks"] = deployedStacks
@@ -356,6 +357,7 @@ func visibleCatalogStacks(in []stacks.Stack) []stacks.Stack {
 
 func (s *Server) stacksHandler(w http.ResponseWriter, r *http.Request) {
 	data := s.baseData("stacks", "Alkalmazások")
+	data["TitleKey"] = "page.title.stacks" // i18n: the Hungarian title above is what hu renders
 	allStacks := visibleCatalogStacks(s.stackMgr.GetStacks())
 	data["Stacks"] = allStacks
 	data["MissingStorage"] = s.missingStorageMap(allStacks)
@@ -793,6 +795,7 @@ func (s *Server) appDetailHandler(w http.ResponseWriter, r *http.Request, slug s
 
 func (s *Server) monitoringHandler(w http.ResponseWriter, r *http.Request) {
 	data := s.baseData("monitoring", "Rendszermonitor")
+	data["TitleKey"] = "page.title.monitoring" // i18n: the Hungarian title above is what hu renders
 	data["SystemInfo"] = system.GetInfo(s.primaryHDDPath(), s.cpuCollector)
 	data["StorageBars"] = s.buildStorageBars()
 
@@ -2043,6 +2046,7 @@ func (s *Server) settingsBaseData(page, title string) map[string]interface{} {
 // controller + server restart.
 func (s *Server) systemPageData() map[string]interface{} {
 	data := s.settingsBaseData("settings", "Beállítások")
+	data["TitleKey"] = "page.title.settings" // i18n: the Hungarian title above is what hu renders
 	data["GitRepoURL"] = s.cfg.Git.RepoURL
 	data["GitSyncInterval"] = s.cfg.Git.SyncInterval
 	data["BackupEnabled"] = s.cfg.Backup.Enabled
@@ -2157,6 +2161,7 @@ func (s *Server) networkStoragePageData() map[string]interface{} {
 // notificationsPageData builds the Értesítések subpage: notification prefs + app-email.
 func (s *Server) notificationsPageData() map[string]interface{} {
 	data := s.settingsBaseData("settings-notifications", "Értesítések")
+	data["TitleKey"] = "page.title.settings_notifications" // i18n: the Hungarian title above is what hu renders
 	data["HubEnabled"] = s.cfg.Hub.Enabled
 	data["NotificationPrefs"] = s.settings.GetNotificationPrefs()
 
@@ -2173,6 +2178,7 @@ func (s *Server) notificationsPageData() map[string]interface{} {
 // emergency/recovery info.
 func (s *Server) securityPageData() map[string]interface{} {
 	data := s.settingsBaseData("settings-security", "Biztonság és hozzáférés")
+	data["TitleKey"] = "page.title.settings_security" // i18n: the Hungarian title above is what hu renders
 
 	// Recovery info for emergency section.
 	//