PR #156 review-leftover: The seen ref starts as undefined, which is also the value every Normal row e [e44df46492a6] #157

[review-leftover] #156

• apps/server/src/fork/displayModeWrap/NewThreadDisplayMode.test.ts:103 The seen ref starts as undefined, which is also the value every Normal row expects, so those rows would pass even if the wrapper skipped the launch. In particular, "a failed thread lookup still runs the launch in Normal" (line 78) does not verify that the launch actually runs; add an assertion that the launch was called.