feat: declare adapter plugin capabilities on ServerAdapterModule

Adds supportsInstructionsBundle, instructionsPathKey, and
requiresMaterializedRuntimeSkills flags so the UI renders the
bundle editor for claude_k8s agents. Bumps adapter-utils peer
dep to the canary that includes the capability type fields.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

src/server/index.ts

@@ -30,6 +30,9 @@ export function createServerAdapter(): ServerAdapterModule {
     listSkills: listK8sSkills,
     syncSkills: syncK8sSkills,
     supportsLocalAgentJwt: true,
+    supportsInstructionsBundle: true,
+    instructionsPathKey: "instructionsFilePath",
+    requiresMaterializedRuntimeSkills: false,
     agentConfigurationDoc,
     getConfigSchema,
   };