v0.27.2 — copyable error popups, Tier2 hub reporting, memory bar fixes, new labels

- Replace native alert() with custom showAlert() modal (text selectable)
- Manual Tier2 backup now pushes infra backup to Hub
- CommittedMemory() excludes stopped/exited apps
- Pre-start memory check blocks start if insufficient RAM
- Add hungarian_ui metadata field + "Magyar felület" badge
- Add "USB" badge on storage cards in settings page

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

controller/internal/stacks/manager.go

@@ -756,7 +756,9 @@ func ParseMemoryMB(s string) int {
 	return int(val)
 }
 
-// CommittedMemory returns the sum of mem_request and mem_limit across all deployed stacks.
+// CommittedMemory returns the sum of mem_request and mem_limit across all
+// deployed stacks that are currently running (or starting/unhealthy/restarting).
+// Stopped and exited apps are excluded since they do not consume memory.
 func (m *Manager) CommittedMemory() (requestMB int, limitMB int) {
 	m.mu.RLock()
 	defer m.mu.RUnlock()
@@ -765,12 +767,25 @@ func (m *Manager) CommittedMemory() (requestMB int, limitMB int) {
 		if !s.Deployed {
 			continue
 		}
+		if s.State == StateStopped || s.State == StateExited {
+			continue
+		}
 		requestMB += ParseMemoryMB(s.Meta.Resources.MemRequest)
 		limitMB += ParseMemoryMB(s.Meta.Resources.MemLimit)
 	}
 	return
 }
 
+// StackMemoryMB returns the mem_request for a specific stack.
+func (m *Manager) StackMemoryMB(name string) int {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+	if s, ok := m.stacks[name]; ok {
+		return ParseMemoryMB(s.Meta.Resources.MemRequest)
+	}
+	return 0
+}
+
 // getCatalogTemplateSlugs reads the synced catalog cache and returns a set of
 // template slugs (directory names) that have a docker-compose.yml.
 func (m *Manager) getCatalogTemplateSlugs() map[string]bool {