test(cloud-connection): the purge test double honours limit and refuses combinators in its matcher; ratchet slot-lookup down

marketplace-install-local-plugin.ts reads one fewer service slot without a
type (the bare 'driver' lookup is gone): 16 -> 15.

Claude-Session: https://claude.ai/code/session_016GiHYRmLSNWTfbX9gVQkpz
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/cloud-connection/src/marketplace-install-local-purge.test.ts

@@ -53,14 +53,15 @@ function makeEngine(tables: Record<string, Row[]>, refuse: Record<string, string
         async find(object: string, query?: any): Promise<any[]> {
             reads.push({ object, query });
             const where: Record<string, unknown> = query?.where ?? {};
-            for (const [k, v] of Object.entries(where)) {
+            const rows = (tables[object] ?? []).filter((row) => Object.entries(where).every(([k, v]) => {
+                // Scalar equality only; anything else is refused, never guessed.
                 if (k.startsWith('$') || (v !== null && typeof v === 'object')) {
-                    throw new Error(`fake engine: only scalar equality is implemented (got '${k}')`);
+                    throw new Error(`only scalar equality is implemented here (got '${k}')`);
                 }
-            }
-            return (tables[object] ?? [])
-                .filter((row) => Object.entries(where).every(([k, v]) => row[k] === v))
-                .map((row) => ({ ...row }));
+                return row[k] === v;
+            }));
+            const page = typeof query?.limit === 'number' ? rows.slice(0, query.limit) : rows;
+            return page.map((row) => ({ ...row }));
         },
         async delete(object: string, options?: any): Promise<boolean> {
             const dispatch = assertEngineDeleteDispatch(options);

scripts/slot-lookup-baseline.json

@@ -4,7 +4,7 @@
   "packages/cli/src/commands/serve.ts": 9,
   "packages/client/src/client.hono.test.ts": 2,
   "packages/cloud-connection/src/cloud-connection-plugin.ts": 5,
-  "packages/cloud-connection/src/marketplace-install-local-plugin.ts": 16,
+  "packages/cloud-connection/src/marketplace-install-local-plugin.ts": 15,
   "packages/core/examples/kernel-features-example.ts": 5,
   "packages/objectql/src/plugin.integration.test.ts": 23,
   "packages/plugins/plugin-approvals/src/status-mirror-cascade.integration.test.ts": 3,