add configurable gift menu overlays

Add tenant-scoped gift menu settings, catalog-backed triggers, infinite OBS rendering, and guard assets. Normalize legacy and protobuf gift values for blind-box, battery-tier, and transaction-aware matching.

apps/server-rust/src/components.rs

@@ -21,6 +21,7 @@ use uuid::Uuid;
 use crate::{
     domain::{ComponentMessage, LiveEvent, LiveEventKind},
     gift_effect::GiftEffectDefinition,
+    gift_menu::{GiftMenuDefinition, GiftMenuProjection},
     overlay::OverlaySettings,
     song_request::{SongRequestDefinition, SongRequestProjection},
 };
@@ -389,6 +390,9 @@ impl ComponentRegistry {
             )
             .expect("built-in component kinds are unique");
         registry
+            .register(Arc::new(GiftMenuDefinition), Arc::new(GiftMenuProjection))
+            .expect("built-in component kinds are unique");
+        registry
     }
 
     pub fn register(
@@ -574,6 +578,24 @@ mod tests {
         assert!(!subscriptions.contains(LiveEventKind::GiftCombo));
     }
 
+    #[test]
+    fn builtin_gift_menu_is_registered_as_a_gift_and_guard_projection() {
+        let registry = ComponentRegistry::default();
+        let runtime = registry.runtime("gift_menu").unwrap();
+        let instance = ComponentInstance::new(
+            Uuid::new_v4(),
+            Uuid::new_v4(),
+            "gift_menu",
+            "礼物菜单",
+            1,
+            runtime.definition().default_settings(),
+        );
+        let subscriptions = runtime.subscriptions(&instance).unwrap();
+        assert!(subscriptions.contains(LiveEventKind::Gift));
+        assert!(subscriptions.contains(LiveEventKind::GuardPurchase));
+        assert!(!subscriptions.contains(LiveEventKind::GiftCombo));
+    }
+
     #[test]
     fn duplicate_component_kinds_are_rejected() {
         let registry = ComponentRegistry::default();