chore: import upstream snapshot with attribution

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

@@ -0,0 +1,49 @@
+import { z } from 'zod'
+import {
+  credentialWorkflowBodySchema,
+  definePostSelector,
+} from '@/lib/api/contracts/selectors/shared'
+import type { ContractJsonResponse } from '@/lib/api/contracts/types'
+
+const slackChannelSchema = z.object({
+  id: z.string(),
+  name: z.string(),
+  isPrivate: z.boolean(),
+})
+const slackUserSchema = z
+  .object({ id: z.string(), name: z.string(), real_name: z.string() })
+  .passthrough()
+
+export const slackUsersBodySchema = credentialWorkflowBodySchema.extend({
+  userId: z.string().optional(),
+})
+
+export const slackChannelsSelectorContract = definePostSelector(
+  '/api/tools/slack/channels',
+  credentialWorkflowBodySchema,
+  z.object({ channels: z.array(slackChannelSchema) })
+)
+
+export const slackUsersSelectorContract = definePostSelector(
+  '/api/tools/slack/users',
+  credentialWorkflowBodySchema,
+  z.object({ users: z.array(slackUserSchema) })
+)
+
+export const slackUserSelectorContract = definePostSelector(
+  '/api/tools/slack/users',
+  credentialWorkflowBodySchema.extend({ userId: z.string().min(1) }),
+  z.object({ user: slackUserSchema })
+)
+
+export const slackUsersListOrDetailContract = definePostSelector(
+  '/api/tools/slack/users',
+  slackUsersBodySchema,
+  z.union([z.object({ user: slackUserSchema }), z.object({ users: z.array(slackUserSchema) })])
+)
+
+export type SlackChannelsSelectorResponse = ContractJsonResponse<
+  typeof slackChannelsSelectorContract
+>
+export type SlackUsersSelectorResponse = ContractJsonResponse<typeof slackUsersSelectorContract>
+export type SlackUserSelectorResponse = ContractJsonResponse<typeof slackUserSelectorContract>