chore: import upstream snapshot with attribution

apps/sim/lib/data-drains/serializers.ts

@@ -0,0 +1,54 @@
+import type { dataDrainRuns, dataDrains } from '@sim/db/schema'
+import { type DataDrain, type DataDrainRun, dataDrainSchema } from '@/lib/api/contracts/data-drains'
+import { getDestination } from '@/lib/data-drains/destinations/registry'
+
+type DataDrainRow = typeof dataDrains.$inferSelect
+type DataDrainRunRow = typeof dataDrainRuns.$inferSelect
+
+/**
+ * Projects a DB row into the public `DataDrain` wire shape. Strips the
+ * encrypted credentials column and normalizes timestamps to ISO strings so
+ * clients receive a stable, schema-validated payload.
+ *
+ * The stored `destinationConfig` is JSONB and is re-validated against the
+ * destination's typed config schema before serialization so unexpected shapes
+ * surface as errors instead of leaking through the response.
+ */
+export function serializeDrain(row: DataDrainRow): DataDrain {
+  const destinationConfig = getDestination(row.destinationType).configSchema.parse(
+    row.destinationConfig
+  )
+  return dataDrainSchema.parse({
+    id: row.id,
+    organizationId: row.organizationId,
+    name: row.name,
+    source: row.source,
+    scheduleCadence: row.scheduleCadence,
+    enabled: row.enabled,
+    cursor: row.cursor,
+    lastRunAt: row.lastRunAt ? row.lastRunAt.toISOString() : null,
+    lastSuccessAt: row.lastSuccessAt ? row.lastSuccessAt.toISOString() : null,
+    createdBy: row.createdBy,
+    createdAt: row.createdAt.toISOString(),
+    updatedAt: row.updatedAt.toISOString(),
+    destinationType: row.destinationType,
+    destinationConfig,
+  })
+}
+
+export function serializeDrainRun(row: DataDrainRunRow): DataDrainRun {
+  return {
+    id: row.id,
+    drainId: row.drainId,
+    status: row.status,
+    trigger: row.trigger,
+    startedAt: row.startedAt.toISOString(),
+    finishedAt: row.finishedAt ? row.finishedAt.toISOString() : null,
+    rowsExported: row.rowsExported,
+    bytesWritten: row.bytesWritten,
+    cursorBefore: row.cursorBefore,
+    cursorAfter: row.cursorAfter,
+    error: row.error,
+    locators: row.locators ?? [],
+  }
+}