test(llm): pin includeShippedRoot off in the inventory roster

The spec landed on master before the roster gained the plugin-bundled
shipped root; its empty-roots harness now opts out explicitly, matching
every other exact-roster suite.

packages/llm/plugin-package-inventory-deepseek/tests/inventory.spec.ts

@@ -44,7 +44,7 @@ async function harness(enabled?: boolean): Promise<{ ctx: Context; root: string;
   await ctx.plugin(Loader)
   ctx.loader.builtins.include = Include
   await ctx.plugin(AgentRegistry)
-  await ctx.plugin(AgentPresets, { default: 'fixture', roots: [], includeUserRoot: false })
+  await ctx.plugin(AgentPresets, { default: 'fixture', roots: [], includeShippedRoot: false, includeUserRoot: false })
   await ctx.plugin(DeepSeekLlmApiExtensionRegistry)
   const inventory = enabled === undefined
     ? ctx.plugin(PluginInventory)