feat(plugin): gate pages on companion features

plugins/sdk/index.ts

@@ -250,8 +250,11 @@ export interface GameClientBridgePageContract {
   commandTypes?: string[];
   snapshotTypes?: string[];
   queryTemplateKeys?: string[];
+  featureKeys?: string[];
 }
 
+export interface GameClientBridgeFeatureDeclaration { key: string; title: string; permission: PluginPermission; requiredHandlers?: string[]; requiredEventProducers?: string[]; }
+
 export interface GameClientBridgeCompanionDeclaration {
   profileKey: string;
   configTemplateKey: string;
@@ -275,6 +278,7 @@ export interface GameClientBridgeManifest {
   commandRetentionSeconds: number;
   maxCommands: number;
   pages?: GameClientBridgePageContract[];
+  features?: GameClientBridgeFeatureDeclaration[];
   companion?: GameClientBridgeCompanionDeclaration;
 }
 
@@ -286,14 +290,19 @@ export interface GameClientBridgeProfileStatus {
   commandTypes: string[];
   snapshotTypes: string[];
   queryTemplateKeys: string[];
+  handlerTypes?: string[];
+  eventProducerTypes?: string[];
 }
 
+export interface GameClientBridgeFeatureAvailability { key: string; available: boolean; reason?: string; }
+
 export interface GameClientBridgeStatus {
   serverInstanceId: string;
   pluginId: string;
   available: boolean;
   reason?: string;
   profiles: GameClientBridgeProfileStatus[];
+  features?: GameClientBridgeFeatureAvailability[];
 }
 
 export interface GameClientBridgeCommandResult {