diff --git a/AGENTS.md b/AGENTS.md
index 9631c7c..ff6dbe8 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -168,7 +168,8 @@ lpt-fe/src/
 
 ### 提交前检查
 
-- 运行 `npx vue-tsc --noEmit`、`npm run lint`（0 error 才可提交；`no-explicit-any` 允许存量警告，新代码避免 any）、`npm run test`、`npm run build`。
+- 运行 `npm run type-check`、`npm run lint`（0 error 才可提交；`no-explicit-any` 允许存量警告，新代码避免 any）、`npm run test`、`npm run build`。
+- **不要用 `npx vue-tsc --noEmit` 作为检查手段**：`tsconfig.json` 是 solution 风格（`files: []` + 仅 `references`），该命令会解析到根配置而检查 0 个源文件，永远假绿。Docker 构建跑的是 `npm run type-check`（`vue-tsc --build --force`，走 project references），只有它才真正校验。
 - 提交信息按 Git 提交规范使用中文短句；样式类改动用 `style:`，清理类用 `refactor:` / `chore:`。
 
 ## 开发配置
@@ -185,7 +186,7 @@ npm run dev
 npm run build
 npm run test
 npm run test:e2e
-npx vue-tsc --noEmit
+npm run type-check
 npm run lint
 npm run test:coverage
 ```
@@ -194,7 +195,7 @@ npm run test:coverage
 
 ```bash
 npx vite build
-npx vue-tsc --noEmit
+npm run type-check
 ```
 
 ## Docker
diff --git a/src/__tests__/components/StartTask.spec.ts b/src/__tests__/components/StartTask.spec.ts
index a78055a..31ff8e9 100644
--- a/src/__tests__/components/StartTask.spec.ts
+++ b/src/__tests__/components/StartTask.spec.ts
@@ -113,6 +113,8 @@ describe('StartTask.vue', () => {
     expect(wrapper.vm.taskInfo.sessionState).toBe('PAUSED')
     expect(wrapper.vm.taskInfo.actualTime).toBe(10)
     expect(wrapper.vm.taskInfo.effectiveTime).toBe(20)
+    // 后端返回 0.8，UI 统一按百分比展示
+    expect(wrapper.vm.taskInfo.effectivenessRatio).toBe('80.0%')
     expect(wrapper.vm.timerRunning).toBe(false)
     wrapper.unmount()
   })
diff --git a/src/__tests__/utils/format.spec.ts b/src/__tests__/utils/format.spec.ts
new file mode 100644
index 0000000..2b9effb
--- /dev/null
+++ b/src/__tests__/utils/format.spec.ts
@@ -0,0 +1,22 @@
+import { describe, it, expect } from 'vitest'
+import { formatRatio } from '@/utils/format'
+
+describe('formatRatio', () => {
+  it('把 0~1 的比率格式化为一位小数的百分比', () => {
+    expect(formatRatio(0.8)).toBe('80.0%')
+    expect(formatRatio(0.8571)).toBe('85.7%')
+    expect(formatRatio(1)).toBe('100.0%')
+    expect(formatRatio(0)).toBe('0.0%')
+  })
+
+  it('兼容后端返回字符串形式的比率', () => {
+    expect(formatRatio('0.8')).toBe('80.0%')
+  })
+
+  it('空值与非法值统一显示 "-"', () => {
+    expect(formatRatio()).toBe('-')
+    expect(formatRatio(null)).toBe('-')
+    expect(formatRatio('')).toBe('-')
+    expect(formatRatio('abc')).toBe('-')
+  })
+})
diff --git a/src/components/ReviewDetail.vue b/src/components/ReviewDetail.vue
index db98f72..787b439 100644
--- a/src/components/ReviewDetail.vue
+++ b/src/components/ReviewDetail.vue
@@ -8,7 +8,9 @@ import {
   type ReviewFeedItem,
 } from "@/api/review";
 import { getSessionDetail } from "@/api/studySessions";
+import type { SessionDetail } from "@/api/studySessions";
 import { updateFragments } from "@/api/reportFragments";
+import { formatRatio } from "@/utils/format";
 import { ElMessage } from "element-plus";
 import MarkdownRenderer from "@/components/MarkdownRenderer.vue";
 
@@ -42,14 +44,7 @@ const isEditing = ref(false);
 const editContent = ref("");
 const saving = ref(false);
 
-const sessionInfo = ref<{
-  taskName: string;
-  sessionNum: string;
-  actualTime?: number;
-  effectiveTime?: number;
-  effectivenessRatio?: number;
-  startTime?: string;
-} | null>(null);
+const sessionInfo = ref<SessionDetail | null>(null);
 
 const taskSessions = ref<{
   sessionNum: string;
@@ -68,11 +63,6 @@ const formatDuration = (seconds?: number): string => {
   return `${s}秒`;
 };
 
-const formatRatio = (ratio?: number): string => {
-  if (ratio == null) return "-";
-  return `${(ratio * 100).toFixed(1)}%`;
-};
-
 const loadTaskHistory = async (tn: string) => {
   try {
     const res = await getTaskReview(tn);
diff --git a/src/components/StartTask.vue b/src/components/StartTask.vue
index cb34245..0819d2c 100644
--- a/src/components/StartTask.vue
+++ b/src/components/StartTask.vue
@@ -18,6 +18,7 @@ import { getFragmentsBySession, updateFragments } from "@/api/reportFragments";
 import router from "@/router";
 import MarkdownRenderer from "@/components/MarkdownRenderer.vue";
 import { renderMarkdown } from "@/utils/markdown";
+import { formatRatio } from "@/utils/format";
 import { useSessionHistory } from "@/components/composables/useSessionHistory";
 import { useSummaryReport } from "@/components/composables/useSummaryReport";
 import { useSessionExpectation } from "@/components/composables/useSessionExpectation";
@@ -110,7 +111,7 @@ const taskInfo = ref({
   lastStartTime: "",
   actualTime: 0,
   effectiveTime: 0,
-  effectivenessRatio: "--",
+  effectivenessRatio: "-",
   pointerPosition: 0,
   systemMessage: "",
 });
@@ -306,7 +307,7 @@ const stopTimer = async () => {
           taskInfo.value.sessionState = d.sessionState ?? "PAUSED";
           taskInfo.value.actualTime = d.actualTime ?? 0;
           taskInfo.value.effectiveTime = d.effectiveTime ?? 0;
-          taskInfo.value.effectivenessRatio = d.effectivenessRatio ?? 0;
+          taskInfo.value.effectivenessRatio = formatRatio(d.effectivenessRatio);
           taskInfo.value.startTime = d.startTime ?? taskInfo.value.startTime;
           taskInfo.value.endTime = d.endTime ?? "";
           taskInfo.value.lastStartTime = d.lastStartTime ?? "";
diff --git a/src/components/Study.vue b/src/components/Study.vue
index 3abbe6c..676f983 100644
--- a/src/components/Study.vue
+++ b/src/components/Study.vue
@@ -235,7 +235,7 @@ const removeTask = async () => {
 // ============ 优先级权重配置 ============
 const weightsDialogVisible = ref(false);
 const savingWeights = ref(false);
-const weightItems = ref([
+const weightItems = ref<{ key: keyof PriorityWeights; label: string; value: number }[]>([
   { key: "urgencyWeight", label: "紧急性", value: 35 },
   { key: "importanceWeight", label: "重要性", value: 25 },
   { key: "contentDifficultyWeight", label: "内容难度", value: 20 },
@@ -274,9 +274,11 @@ const saveWeights = async () => {
   }
   savingWeights.value = true;
   try {
-    const payload = Object.fromEntries(
-      weightItems.value.map((item) => [item.key, item.value / 100])
-    ) as unknown as PriorityWeights;
+    // weightItems 的 key 已由 keyof PriorityWeights 约束，循环后必然覆盖全部维度
+    const payload = {} as PriorityWeights;
+    for (const item of weightItems.value) {
+      payload[item.key] = item.value / 100;
+    }
     const res = await savePriorityWeights(payload);
     if (res?.code === 200) {
       weightsDialogVisible.value = false;
diff --git a/src/utils/format.ts b/src/utils/format.ts
new file mode 100644
index 0000000..8f7490d
--- /dev/null
+++ b/src/utils/format.ts
@@ -0,0 +1,10 @@
+/**
+ * 把 0~1 的比率格式化为百分比文案。
+ * 后端可能返回数字或字符串，空值与非法值统一显示 "-"。
+ */
+export const formatRatio = (ratio?: number | string | null): string => {
+  if (ratio == null || ratio === "") return "-";
+  const value = Number(ratio);
+  if (Number.isNaN(value)) return "-";
+  return `${(value * 100).toFixed(1)}%`;
+};