add:新增同一个工单同一人可以多次拼单：拼单后按钮固定显示「再拼一次」

apps/frontend/tests/worker-realtime-work-orders.test.ts

@@ -280,3 +280,49 @@ test('没有 workerStatuses 的旧快照仍按单个 status 比对（保持既
   })
   assert.equal(match.operation, 'upsert')
 })
+
+/**
+ * 大厅按钮需求：拼过一次后按钮固定显示「再拼一次」，不再随次数变化。
+ * 这依赖 myShare/myShares 一直留在行上；而大厅广播是「所有打手通用」的快照，
+ * 不含个人份额，覆盖行时必须保留，否则按钮会被冲回「拼单 ￥x/份」。
+ */
+test('大厅广播覆盖行时必须保留本打手的 myShare/myShares，并更新拼单进度', () => {
+  const cachedRow = buildRow({
+    status: 'open',
+    myShare: { shareId: 77, quantity: 1, status: 'joined' },
+    myShares: [{ shareId: 77, quantity: 1, status: 'joined' }],
+    sharingProgress: { joinedQuantity: 1, pendingSubmissionCount: 1 },
+  })
+  const envelope = { pages: [buildEnvelope([cachedRow])], pageParams: [1] }
+  const snapshot = buildRow({
+    status: 'open',
+    sharingProgress: { joinedQuantity: 2, pendingSubmissionCount: 2 },
+  })
+  const patched = patchWorkerWorkOrderInfiniteEnvelope(
+    envelope,
+    { operation: 'upsert', data: snapshot },
+    true,
+    ['myShare', 'myShares'],
+  ) as { pages: unknown[] }
+  const row = itemsOf(patched.pages[0])[0] as {
+    myShare?: { shareId: number }
+    myShares?: unknown[]
+    sharingProgress?: { joinedQuantity: number }
+  }
+  assert.equal(row.myShare?.shareId, 77, '不能把「再拼一次」的依据冲掉')
+  assert.equal(row.myShares?.length, 1)
+  assert.equal(row.sharingProgress?.joinedQuantity, 2, '公开进度仍要用广播里的最新值')
+
+  // 新插入的行本来就不属于我，不能凭空补上旧字段
+  const inserted = patchWorkerWorkOrderInfiniteEnvelope(
+    envelope,
+    { operation: 'upsert', data: buildRow({ workOrderId: 9999, status: 'open' }) },
+    true,
+    ['myShare', 'myShares'],
+  ) as { pages: unknown[] }
+  const insertedRow = itemsOf(inserted.pages[0]).find((item) => item.workOrderId === 9999) as
+    | { myShare?: unknown; myShares?: unknown }
+    | undefined
+  assert.equal(insertedRow?.myShare ?? null, null)
+  assert.equal(insertedRow?.myShares ?? null, null)
+})