fix(pi): drop the banned JSON round-trip from the search parity test

`check:utils` bans `JSON.parse(JSON.stringify(...))`. The round-trip was
normalizing the host body to its wire form, which buys nothing here: the bodies
are plain JSON and `toEqual` already ignores undefined members.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: 2 people

apps/sim/executor/handlers/pi/search/parity.test.ts

@@ -117,7 +117,9 @@ describe.each(Object.keys(TOOLS) as PiSearchProvider[])('%s request parity', (pr
 
     expect(sandbox.url).toBe(host.url)
     expect(sandbox.headers).toEqual(host.headers)
-    expect(sandbox.body).toEqual(JSON.parse(JSON.stringify(host.body)))
+    // `sandbox.body` is already parsed off the wire; `toEqual` ignores members set to undefined, so
+    // comparing the host's object directly still compares what each path would send.
+    expect(sandbox.body).toEqual(host.body)
     expect(TOOLS[provider].request.method).toBe('POST')
   })
 })