The owner's-screen snapshot test reads only its own rows, so it does not depend on the machine it runs on #2387

Both tries of #2340, and both tries of #2282 before it, went red on test/resilience.test.ts "a store with a newest snapshot and a mirror …". That test expects rows[0] to say "all fine", which any other need on the check machine flips.

Done looks like:

• [ ] The test asserts that no snapshot-related "act" row is present once a mirror is set, instead of asserting that the whole screen says "all fine".
• [ ] Nothing in src changes.
• [ ] Run test/resilience.test.ts alone, then together with test/smoke.test.ts in one bun test invocation, and quote both.