test(service-storage): the #24366 pin fixture's WHERE matcher refuses unknown operators loudly

The in-memory matcher now throws on an unsupported combinator or operator
rather than silently excluding the row, as check:where-matcher requires.

Claude-Session: https://claude.ai/code/session_01Nk17Z26X5DB59iQztDBADH
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/services/service-storage/src/storage-routes.family-gate-credential.pin.test.ts

@@ -98,9 +98,11 @@ function services(sessionReads: { n: number }) {
   };
   const matches = (row: Record<string, unknown>, where: Record<string, unknown> | undefined) =>
     Object.entries(where ?? {}).every(([k, v]) => {
+      if (k.startsWith('$')) throw new Error(`fixture: unsupported combinator ${k}`);
       if (v !== null && typeof v === 'object') {
         const list = (v as { $in?: unknown[] }).$in;
-        return Array.isArray(list) ? list.includes(row[k]) : false;
+        if (!Array.isArray(list)) throw new Error(`fixture: unsupported operator on ${k}`);
+        return list.includes(row[k]);
       }
       return (v ?? null) === (row[k] ?? null);
     });