test: tests that assumed an idle machine wait for what they assert, or carry a budget for their work

Under a busy machine (the gate's lanes side by side, 12 busy cores) these went red at random: a press landed while the button was still busy, an answer was settled before it was asked for, a page grew past one wait's budget, a lazy chunk was transformed inside a 1 s wait, focus was taken a frame after the press. They now wait for the condition they depend on, preload the chunks they open, and the tests that do heavy work (whole-repo scans, the type-aware linter, module resets) carry an explicit budget naming that work. The whole suite four times under 12 busy-loop processes: red 4/4 before, 0/4 after.

frontend/src/lib/api/facade.test.ts

@@ -71,7 +71,9 @@ beforeAll(async () => {
     slices[name] = slice;
   }
   api = ((await import("../api")) as { api: Slice }).api;
-});
+  // The imports above transform the whole api graph and i18n with every locale: under a ~0.6 s idle,
+  // but past the 10 s hook budget when the full suite's workers share a busy machine.
+}, 60_000);
 
 describe("api façade is a collision-free spread of domain slices", () => {
   it("defines no method name in more than one slice (object spread would silently drop one)", () => {