fix(rectification): unblock next build typecheck for house tables

Docker npm run build failed on Failed to type check. The skill-package-registry Import traces were only file-tracing noise; houseTable used && on string|null, and eight-method tests compared impossible literals that tsconfig still typechecks.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/BUG_HISTORY.md

@@ -4826,3 +4826,19 @@
 - 相关记录：BUG-291、BUG-319
 - 复发自：BUG-291（迁居继续不轮询；财务/健康被一并排除后不再被方法层追问）
 - 修复版本：1b93afc5
+
+## BUG-321 | Docker `npm run build` 因宫位表 `&&` 与八方法测试字面量类型检查失败
+
+- 状态：resolved
+- 首次发现：2026-08-20
+- 最近更新：2026-08-20
+- 影响面：`deploy/railway-web.Dockerfile` 的 `RUN npm run build`、`rectification-candidate-result.ts`、`rectification-eight-method.test.ts`
+- 用户现象：staging publish 在 web 镜像构建失败。BuildKit 日志末尾是 `skill-package-registry.ts` 的 Import traces。
+- 触发条件：向 `staging` 推送 Skill 10.0.8 后走 publish 镜像构建。push 上的 validate 跳过 `npm run build`。
+- 根因：日志末尾 Import traces 只是动态文件访问追踪警告，真正失败是 `Failed to type check`。`selectedTime && houseTablesByTime[selectedTime]` 在 `string | null` 下会被推断成 `"" | HouseTable | null`，`??` 不能消掉空字符串。八方法测试对 `do_not_poll` 传入 `"appearance"`，并对观察层比较永远不存在的 `"d24"` / `"d2"`。`tsconfig` 包含 `tests/**/*.ts`，因此这些测试错误也会挡住 `next build`。
+- 修复：宫位表改用三元取值；测试改为断言 `do_not_poll` 恰好是 `horary`，并用完整观察层列表证明 D24/D2 不单独成层。
+- 验证：`./node_modules/.bin/tsc --noEmit`；`npx tsx --test tests/rectification-eight-method.test.ts`。
+- 防复发：对 `string | null` 做查找不得用 `&&` 当存在性守卫。`readonly ["horary"]` 的 `.includes()` 只能传入 `"horary"`。staging push 的 validate 仍不跑 `next build`，类型回归只在 publish Docker 暴露。
+- 相关记录：BUG-309、BUG-315、BUG-320
+- 复发自：BUG-309（validate 跳过 `next build`；日志末尾 Import traces 掩盖类型检查失败）
+- 修复版本：待提交

frontend/src/lib/rectification-candidate-result.ts

@@ -220,8 +220,8 @@ export function parseRectificationCandidateResult(value: unknown): Rectification
   const fallbackHouseTable = parseRectificationHouseTable(snapshot.houseTable)
     ?? parseRectificationHouseTable(snapshot.house_table)
     ?? parseRectificationHouseTable(receipt?.house_table);
-  const houseTable = (selectedTime && houseTablesByTime[selectedTime])
-    ?? (representativeTime && houseTablesByTime[representativeTime])
+  const houseTable = (selectedTime ? houseTablesByTime[selectedTime] : null)
+    ?? (representativeTime ? houseTablesByTime[representativeTime] : null)
     ?? fallbackHouseTable;
 
   return {

frontend/tests/rectification-eight-method.test.ts

@@ -221,8 +221,7 @@ test("declined relationship skips to career and still skips horary", () => {
   });
   assert.equal(plan.next_followup?.method_id, "d10_career");
   assert.equal(plan.next_followup?.domain, "career");
-  assert.equal(plan.do_not_poll.includes("horary"), true);
-  assert.equal(plan.do_not_poll.includes("appearance"), false);
+  assert.deepEqual([...plan.do_not_poll], ["horary"]);
 });
 
 test("D9 differ becomes an internal ask theme without sign labels", () => {
@@ -305,7 +304,10 @@ test("D24-only window change folds into education follow-up without a second lay
   const observations = internalObservationsFromWindowScan(scan);
   assert.equal(observations.find((item) => item.layer === "d5")?.candidates_differ, true);
   assert.equal(observations.find((item) => item.layer === "d5")?.ask_theme, "education_style");
-  assert.equal(observations.some((item) => item.layer === "d24"), false);
+  assert.deepEqual(
+    observations.map((item) => item.layer),
+    ["d9", "d10", "d4", "d5", "d7", "d12", "d11", "d30"],
+  );
   const plan = buildMethodFollowupPlan({
     evidence: [
       { status: "confirmed", domain: "relationship", datePrecision: "year", occurredFrom: "2018-01-01", occurredTo: null },
@@ -353,7 +355,10 @@ test("D11-only window change folds into finance follow-up without delaying adopt
   assert.equal(observations.find((item) => item.layer === "d11")?.candidates_differ, true);
   assert.equal(observations.find((item) => item.layer === "d11")?.ask_theme, "finance_change");
   assert.equal(observations.find((item) => item.layer === "d30")?.ask_theme, "health_pressure");
-  assert.equal(observations.some((item) => item.layer === "d2"), false);
+  assert.deepEqual(
+    observations.map((item) => item.layer),
+    ["d9", "d10", "d4", "d5", "d7", "d12", "d11", "d30"],
+  );
   const plan = buildMethodFollowupPlan({
     evidence: [
       { status: "confirmed", domain: "relationship", datePrecision: "year", occurredFrom: "2018-01-01", occurredTo: null },