chore: import upstream snapshot with attribution

apps/sim/app/api/v1/admin/workspaces/route.ts

@@ -0,0 +1,55 @@
+/**
+ * GET /api/v1/admin/workspaces
+ *
+ * List all workspaces with pagination.
+ *
+ * Query Parameters:
+ *   - limit: number (default: 50, max: 250)
+ *   - offset: number (default: 0)
+ *
+ * Response: AdminListResponse<AdminWorkspace>
+ */
+
+import { db } from '@sim/db'
+import { workspace } from '@sim/db/schema'
+import { createLogger } from '@sim/logger'
+import { count } from 'drizzle-orm'
+import { adminV1ListWorkspacesContract } from '@/lib/api/contracts/v1/admin'
+import { parseRequest } from '@/lib/api/server'
+import { withRouteHandler } from '@/lib/core/utils/with-route-handler'
+import { withAdminAuth } from '@/app/api/v1/admin/middleware'
+import { internalErrorResponse, listResponse } from '@/app/api/v1/admin/responses'
+import {
+  type AdminWorkspace,
+  createPaginationMeta,
+  toAdminWorkspace,
+} from '@/app/api/v1/admin/types'
+
+const logger = createLogger('AdminWorkspacesAPI')
+
+export const GET = withRouteHandler(
+  withAdminAuth(async (request) => {
+    const parsed = await parseRequest(adminV1ListWorkspacesContract, request, {})
+    if (!parsed.success) return parsed.response
+
+    const { limit, offset } = parsed.data.query
+
+    try {
+      const [countResult, workspaces] = await Promise.all([
+        db.select({ total: count() }).from(workspace),
+        db.select().from(workspace).orderBy(workspace.name).limit(limit).offset(offset),
+      ])
+
+      const total = countResult[0].total
+      const data: AdminWorkspace[] = workspaces.map(toAdminWorkspace)
+      const pagination = createPaginationMeta(total, limit, offset)
+
+      logger.info(`Admin API: Listed ${data.length} workspaces (total: ${total})`)
+
+      return listResponse(data, pagination)
+    } catch (error) {
+      logger.error('Admin API: Failed to list workspaces', { error })
+      return internalErrorResponse('Failed to list workspaces')
+    }
+  })
+)