fix(agent-designer): drop hardcoded inference source and release tag

Author: TheGreatAxios

agents/designer/src/agent.ts

@@ -13,6 +13,5 @@ export function defineAgent(): AgentDefinition {
     tools: [], // tool mounting is consumer/app-side; surface enforced by drift-guard
     capabilities: [],
     inference: { sources: [] },
-    tags: { fleet: "0.3.36", lane: "designer" },
   });
 }

agents/designer/src/toolset.ts

@@ -1,6 +1,6 @@
 // BUILD_TOOLS literal (= REVIEW_TOOLS); drift-guarded against REVIEW_TOOLS
 // by src/agent/directors/designer/package.test.ts.
-const BUILD_TOOLS = [
+export const tools = [
   "read_file",
   "grep",
   "search_files",
@@ -15,5 +15,3 @@ const BUILD_TOOLS = [
   "edit_file",
   "delete_file",
 ] as const;
-
-export const tools: readonly string[] = [...BUILD_TOOLS];