add cleanup script (apply policy to events created before it applied)

scripts/db-policy.ts

@@ -0,0 +1,22 @@
+import { policyWorker } from '@/workers/policy.ts';
+import { Storages } from '@/storages.ts';
+
+const db = await Storages.db();
+const ids = [];
+
+for await (const msg of db.req([{}])) {
+  const [type, , event] = msg;
+  if (type === 'EOSE') console.log('EOSE');
+  if (type !== 'EVENT') continue;
+  const [, , ok] = await policyWorker.call(event, AbortSignal.timeout(5000));
+  if (!ok) ids.push(event.id);
+}
+
+try {
+  await db.remove([{ ids }]);
+  console.log(`Cleaned up ${ids.length} events from the db.`);
+  Deno.exit(0);
+} catch (e) {
+  console.error(e);
+  Deno.exit(1);
+}