Create endpoint and controller function for user column migration.

packages/server/src/api/controllers/table/index.ts

@@ -158,3 +158,5 @@ export async function validateExistingTableImport(ctx: UserCtx) {
     ctx.status = 422
   }
 }
+
+export async function migrate(ctx: UserCtx) {}

packages/server/src/api/routes/table.ts

@@ -167,4 +167,11 @@ router
     tableController.bulkImport
   )
 
+  .post(
+    "/api/tables/:tableId/migrate",
+    paramResource("tableId"),
+    authorized(BUILDER),
+    tableController.migrate
+  )
+
 export default router