feat(plugins): share native session handoff and soften memory search

integrations/deepseek-plugin/tsup.config.ts

@@ -1,4 +1,5 @@
 import { defineConfig } from "tsup";
+import { packageHandoff } from "../agent-plugin-core/build/package_handoff.mjs";
 
 export default defineConfig({
   entry: ["src/index.ts"],
@@ -6,6 +7,7 @@ export default defineConfig({
   dts: true,
   sourcemap: true,
   clean: true,
+  onSuccess: () => packageHandoff(),
   // The harness runtime and the Mem0 SDK are provided by the host / installed
   // separately; keep them out of the bundle.
   external: [/^node:/, /^@deepseek-ai\//, "mem0ai", /^mem0ai\//],