refactor: unify data preparations and research input snapshots

frontend/tests/research-outcomes.spec.ts

@@ -1,3 +1,4 @@
+import { choosePreparation } from "./preparation-helpers";
 import { expect, test } from "@playwright/test";
 const headers = { "X-WQ-Request": "1" };
 const scope = {
@@ -50,13 +51,12 @@ test("feature conversion, saved views and immutable evaluations", async ({
     await page.request.get(`/api/v1/catalog/datasets/TEST_FIN/fields?${params}`)
   ).json();
   const fixed = await (
-    await page.request.post("/api/v1/catalog/inputs", {
+    await page.request.post("/api/v1/data-preparations/from-dataset", {
       headers,
       data: {
         scope,
         dataset_id: "TEST_FIN",
         collection_version: fields.collection_version,
-        selection: "all",
       },
     })
   ).json();
@@ -67,11 +67,7 @@ test("feature conversion, saved views and immutable evaluations", async ({
   await page
     .getByLabel("特征经济假设", { exact: true })
     .fill("排名可降低异常值影响");
-  await page.getByRole("combobox", { name: "特征固定输入" }).click();
-  await page
-    .getByRole("option")
-    .filter({ hasText: fixed.id.slice(0, 8) })
-    .click();
+  await choosePreparation(page, fixed.name, "选择特征数据准备");
   await page.getByLabel("特征方案名称", { exact: true }).click();
   await page.getByRole("button", { name: "添加处理步骤" }).click();
   await page.getByLabel("步骤 1 名称").fill("横截面排名");
@@ -95,9 +91,12 @@ test("feature conversion, saved views and immutable evaluations", async ({
       "/api/v1/research/assets?kind=template&q=特征转换模板",
     )
   ).json();
-  expect(templates.items[0].provenance.feature.content.input_ids).toEqual([
-    fixed.id,
-  ]);
+  const snapshot = await (
+    await page.request.get(
+      `/api/v1/research/input-snapshots/${templates.items[0].provenance.feature.content.input_ids[0]}`,
+    )
+  ).json();
+  expect(snapshot.preparation_id).toBe(fixed.id);
   await page.keyboard.press("Escape");
   await page.getByRole("button", { name: "Alpha 管理", exact: true }).click();
   await page.getByRole("button", { name: "保存为新视图" }).click();