chore: import upstream snapshot with attribution

apps/sim/lib/api/contracts/selectors/webflow.ts

@@ -0,0 +1,49 @@
+import { z } from 'zod'
+import {
+  credentialWorkflowBodySchema,
+  definePostSelector,
+  idNameSchema,
+  optionalString,
+} from '@/lib/api/contracts/selectors/shared'
+import type { ContractJsonResponse } from '@/lib/api/contracts/types'
+
+/**
+ * Webflow `/sites` accepts an optional `siteId`. When provided, the route
+ * dispatches to the single-site detail endpoint instead of the list endpoint.
+ */
+export const webflowSitesBodySchema = credentialWorkflowBodySchema.extend({
+  siteId: optionalString,
+})
+
+export const webflowCollectionsBodySchema = credentialWorkflowBodySchema.extend({
+  siteId: z.string().min(1, 'Site ID is required'),
+})
+
+export const webflowItemsBodySchema = credentialWorkflowBodySchema.extend({
+  collectionId: z.string().min(1, 'Collection ID is required'),
+  search: optionalString,
+})
+
+export const webflowSitesSelectorContract = definePostSelector(
+  '/api/tools/webflow/sites',
+  webflowSitesBodySchema,
+  z.object({ sites: z.array(idNameSchema) })
+)
+
+export const webflowCollectionsSelectorContract = definePostSelector(
+  '/api/tools/webflow/collections',
+  webflowCollectionsBodySchema,
+  z.object({ collections: z.array(idNameSchema) })
+)
+
+export const webflowItemsSelectorContract = definePostSelector(
+  '/api/tools/webflow/items',
+  webflowItemsBodySchema,
+  z.object({ items: z.array(idNameSchema) })
+)
+
+export type WebflowSitesSelectorResponse = ContractJsonResponse<typeof webflowSitesSelectorContract>
+export type WebflowCollectionsSelectorResponse = ContractJsonResponse<
+  typeof webflowCollectionsSelectorContract
+>
+export type WebflowItemsSelectorResponse = ContractJsonResponse<typeof webflowItemsSelectorContract>