fix: align market selection checkboxes

tests/market-content-entry.test.ts

@@ -2682,9 +2682,7 @@ function installPaginationHarness(
   }
 
   const renderPage = () => {
-    const authorColumn = document.querySelector(
-      '[data-testid="author-section"] .content-column'
-    ) as HTMLElement | null;
+    const authorColumn = readAuthorContentColumn();
     const middleColumn = document.querySelector(
       '.middle-columns .content-column'
     ) as HTMLElement | null;
@@ -2777,9 +2775,7 @@ function installAsyncPaginationHarness(
   };
 
   const renderPage = () => {
-    const authorColumn = document.querySelector(
-      '[data-testid="author-section"] .content-column'
-    ) as HTMLElement | null;
+    const authorColumn = readAuthorContentColumn();
     const middleColumn = document.querySelector(
       '.middle-columns .content-column'
     ) as HTMLElement | null;
@@ -2883,9 +2879,7 @@ function installLaggyPaginationHarness(
   };
 
   const renderPage = () => {
-    const authorColumn = document.querySelector(
-      '[data-testid="author-section"] .content-column'
-    ) as HTMLElement | null;
+    const authorColumn = readAuthorContentColumn();
     const middleColumn = document.querySelector(
       '.middle-columns .content-column'
     ) as HTMLElement | null;
@@ -2940,9 +2934,7 @@ function installLaggyPaginationHarness(
     pageIndex += 1;
     updatePaginationState(pageIndex);
 
-    const authorColumn = document.querySelector(
-      '[data-testid="author-section"] .content-column'
-    ) as HTMLElement | null;
+    const authorColumn = readAuthorContentColumn();
     const middleColumn = document.querySelector(
       '.middle-columns .content-column'
     ) as HTMLElement | null;
@@ -3014,9 +3006,7 @@ function installProgressivePaginationHarness(
       price21To60s: string;
     }>
   ) => {
-    const authorColumn = document.querySelector(
-      '[data-testid="author-section"] .content-column'
-    ) as HTMLElement | null;
+    const authorColumn = readAuthorContentColumn();
     const middleColumn = document.querySelector(
       '.middle-columns .content-column'
     ) as HTMLElement | null;
@@ -3118,9 +3108,7 @@ function installLazyFieldHydrationHarness(options: {
   const rightColumns = document.querySelectorAll(
     '[data-testid="right-section"] > .content-column'
   );
-  const authorCells = Array.from(
-    document.querySelectorAll('[data-testid="author-section"] .content-column .content-cell')
-  ) as HTMLElement[];
+  const authorCells = readAuthorContentCells();
   const middleCells = Array.from(
     document.querySelectorAll(".middle-columns .content-column .content-cell")
   ) as HTMLElement[];
@@ -3288,11 +3276,7 @@ function installPagedLazyFieldHydrationHarness(options: {
     const rightColumns = document.querySelectorAll(
       '[data-testid="right-section"] > .content-column'
     );
-    const authorCells = Array.from(
-      document.querySelectorAll(
-        '[data-testid="author-section"] .content-column .content-cell'
-      )
-    ) as HTMLElement[];
+    const authorCells = readAuthorContentCells();
     const middleCells = Array.from(
       document.querySelectorAll(".middle-columns .content-column .content-cell")
     ) as HTMLElement[];
@@ -3531,14 +3515,40 @@ function readRowOrder() {
 }
 
 function readDivAuthorOrder() {
-  const authorColumn = document.querySelector(
-    '[data-testid="author-section"] .content-column'
-  );
+  const authorColumn = readAuthorContentColumn();
   return readVisualCells(authorColumn).map(
     (cell) => cell.querySelector("a")?.textContent?.trim() ?? ""
   );
 }
 
+function readAuthorContentColumn(): HTMLElement | null {
+  const nativeColumns = Array.from(
+    document.querySelectorAll('[data-testid="author-section"] > .content-column')
+  ).filter(
+    (column): column is HTMLElement =>
+      column instanceof HTMLElement && !column.dataset.marketColumnGroup
+  );
+  if (nativeColumns.length === 1) {
+    return nativeColumns[0];
+  }
+
+  return (
+    nativeColumns.find((column) =>
+      Boolean(
+        column.querySelector('a[href*="/author-homepage/"]') ||
+          column.querySelector(".author-nickname") ||
+          column.querySelector("[data-testid^='author-cell-']")
+      )
+    ) ?? null
+  );
+}
+
+function readAuthorContentCells(): HTMLElement[] {
+  return Array.from(
+    readAuthorContentColumn()?.querySelectorAll(":scope > .content-cell") ?? []
+  ).filter((cell): cell is HTMLElement => cell instanceof HTMLElement);
+}
+
 function readDivRightRowTexts(rowIndex: number) {
   return Array.from(
     document.querySelectorAll('[data-testid="right-section"] > .content-column'),

tests/market-dom-sync.test.ts

@@ -307,6 +307,28 @@ describe("market-dom-sync", () => {
     expect(readAuthorNames()).toEqual(["达人 A", "达人 B"]);
   });
 
+  test("inserts the selection column before the native author column", () => {
+    document.body.innerHTML = buildRealMarketGridFixture();
+
+    const table = syncMarketTable(document);
+    if (!table) {
+      throw new Error("Expected market table");
+    }
+
+    expect(readAuthorSectionColumnKeys()).toEqual(["selection", "author"]);
+  });
+
+  test("keeps the selection cells aligned to the native author row heights", () => {
+    document.body.innerHTML = buildRealMarketGridFixture();
+
+    const table = syncMarketTable(document);
+    if (!table) {
+      throw new Error("Expected market table");
+    }
+
+    expect(readSelectionCellHeights()).toEqual(["120px", "120px"]);
+  });
+
   test("uses native-like alignment styles for plugin cells", () => {
     document.body.innerHTML = buildRealMarketGridFixtureWithScopedAttributes();
 
@@ -962,14 +984,37 @@ function readSelectionRowCheckboxCount() {
 }
 
 function readAuthorNames() {
-  const authorColumn = document.querySelector(
-    '[data-testid="author-section"] .content-column'
-  );
+  const authorColumn = Array.from(
+    document.querySelectorAll('[data-testid="author-section"] > .content-column')
+  ).find((column) => (column as HTMLElement).querySelector("a")) as Element | null;
   return readVisualCells(authorColumn).map(
     (cell) => cell.querySelector("a")?.textContent?.trim() ?? ""
   );
 }
 
+function readAuthorSectionColumnKeys() {
+  return Array.from(
+    document.querySelectorAll('[data-testid="author-section"] > .content-column'),
+    (column) => {
+      const element = column as HTMLElement;
+      if (element.dataset.marketColumnGroup) {
+        return element.dataset.marketColumnGroup;
+      }
+
+      return element.querySelector("a") ? "author" : "unknown";
+    }
+  );
+}
+
+function readSelectionCellHeights() {
+  return Array.from(
+    document.querySelectorAll(
+      '[data-testid="author-section"] [data-market-column-group="selection"] > .content-cell'
+    ),
+    (cell) => (cell as HTMLElement).style.height
+  );
+}
+
 function readAuthorRowHiddenStates() {
   return Array.from(
     document.querySelectorAll('[data-testid^="author-cell-"]'),