feat: 基础设施加固 — 修复构建、数据保留、错误边界、bundle 拆分

- 修复 build script 引用已删除的 registerCheckers，恢复生产构建
- 生产入口添加 SIGINT/SIGTERM 优雅关闭（与 dev.ts 一致）
- 新增 runtime.retention 配置（默认 7d），ProbeStore.prune() 定时清理过期数据
- parseDuration 扩展支持 h/d 单位
- 新增前端 ErrorBoundary 组件，防止渲染错误白屏
- Vite codeSplitting.groups 拆分 vendor chunks（业务代码 1180KB → 47KB）
- 同步 delta specs 到主规范

tests/server/checker/config-loader.test.ts

@@ -43,6 +43,16 @@ describe("parseDuration", () => {
     expect(parseDuration("1.5s")).toBe(1500);
   });
 
+  test("解析小时", () => {
+    expect(parseDuration("2h")).toBe(7200000);
+    expect(parseDuration("1h")).toBe(3600000);
+  });
+
+  test("解析天", () => {
+    expect(parseDuration("7d")).toBe(604800000);
+    expect(parseDuration("1d")).toBe(86400000);
+  });
+
   test("拒绝非正整数毫秒结果", () => {
     expect(() => parseDuration("0ms")).toThrow("正整数毫秒");
     expect(() => parseDuration("1.5ms")).toThrow("正整数毫秒");
@@ -1214,4 +1224,51 @@ targets:
       "expect.status 是未知字段",
     );
   });
+
+  test("retention 默认值为 7d", async () => {
+    const configPath = join(tempDir, "retention-default.yaml");
+    await writeFile(
+      configPath,
+      `targets:
+  - name: "test"
+    type: http
+    http:
+      url: "http://example.com"
+`,
+    );
+    const config = await loadConfig(configPath);
+    expect(config.retentionMs).toBe(604800000);
+  });
+
+  test("retention 自定义值", async () => {
+    const configPath = join(tempDir, "retention-custom.yaml");
+    await writeFile(
+      configPath,
+      `runtime:
+  retention: "24h"
+targets:
+  - name: "test"
+    type: http
+    http:
+      url: "http://example.com"
+`,
+    );
+    const config = await loadConfig(configPath);
+    expect(config.retentionMs).toBe(86400000);
+  });
+
+  test("retention 非法格式抛出错误", async () => {
+    await expectConfigError(
+      "bad-retention.yaml",
+      `runtime:
+  retention: "7x"
+targets:
+  - name: "test"
+    type: http
+    http:
+      url: "http://example.com"
+`,
+      "无效的时长格式",
+    );
+  });
 });

tests/server/checker/engine.test.ts

@@ -220,4 +220,55 @@ describe("ProbeEngine", () => {
       void httpServer.stop();
     }
   });
+
+  test("retentionMs > 0 时 start 调用 prune", () => {
+    let pruneCalled = false;
+    const mockStore = {
+      ...createMockStore(["test"]),
+      prune() {
+        pruneCalled = true;
+        return 0;
+      },
+    } as unknown as ProbeStore;
+
+    const targets: ResolvedTargetBase[] = [makeCommandTarget("test")];
+    const engine = new ProbeEngine(mockStore, targets, 20, 86400000);
+    engine.start();
+    expect(pruneCalled).toBe(true);
+    engine.stop();
+  });
+
+  test("retentionMs = 0 时不调用 prune", () => {
+    let pruneCalled = false;
+    const mockStore = {
+      ...createMockStore(["test"]),
+      prune() {
+        pruneCalled = true;
+        return 0;
+      },
+    } as unknown as ProbeStore;
+
+    const targets: ResolvedTargetBase[] = [makeCommandTarget("test")];
+    const engine = new ProbeEngine(mockStore, targets, 20, 0);
+    engine.start();
+    expect(pruneCalled).toBe(false);
+    engine.stop();
+  });
+
+  test("retentionMs 未传时不调用 prune", () => {
+    let pruneCalled = false;
+    const mockStore = {
+      ...createMockStore(["test"]),
+      prune() {
+        pruneCalled = true;
+        return 0;
+      },
+    } as unknown as ProbeStore;
+
+    const targets: ResolvedTargetBase[] = [makeCommandTarget("test")];
+    const engine = new ProbeEngine(mockStore, targets);
+    engine.start();
+    expect(pruneCalled).toBe(false);
+    engine.stop();
+  });
 });

tests/server/checker/store.test.ts

@@ -419,4 +419,87 @@ describe("ProbeStore", () => {
 
     freshStore.close();
   });
+
+  test("prune 删除过期数据", () => {
+    const pruneStore = new ProbeStore(join(tempDir, "prune.db"));
+    pruneStore.syncTargets([httpTarget]);
+    const t = pruneStore.getTargets()[0]!;
+
+    pruneStore.insertCheckResult({
+      durationMs: 100,
+      failure: null,
+      matched: true,
+      statusDetail: "200 OK",
+      targetId: t.id,
+      timestamp: "2020-01-01T00:00:00.000Z",
+    });
+    pruneStore.insertCheckResult({
+      durationMs: 100,
+      failure: null,
+      matched: true,
+      statusDetail: "200 OK",
+      targetId: t.id,
+      timestamp: new Date().toISOString(),
+    });
+
+    const deleted = pruneStore.prune(86400000);
+    expect(deleted).toBe(1);
+
+    const history = pruneStore.getHistory(t.id, "2000-01-01T00:00:00.000Z", "2099-12-31T23:59:59.999Z");
+    expect(history.total).toBe(1);
+
+    pruneStore.close();
+  });
+
+  test("prune 无过期数据返回 0", () => {
+    const pruneStore = new ProbeStore(join(tempDir, "prune-none.db"));
+    pruneStore.syncTargets([httpTarget]);
+    const t = pruneStore.getTargets()[0]!;
+
+    pruneStore.insertCheckResult({
+      durationMs: 100,
+      failure: null,
+      matched: true,
+      statusDetail: "200 OK",
+      targetId: t.id,
+      timestamp: new Date().toISOString(),
+    });
+
+    const deleted = pruneStore.prune(86400000);
+    expect(deleted).toBe(0);
+
+    pruneStore.close();
+  });
+
+  test("prune 不影响保留期内数据", () => {
+    const pruneStore = new ProbeStore(join(tempDir, "prune-keep.db"));
+    pruneStore.syncTargets([httpTarget]);
+    const t = pruneStore.getTargets()[0]!;
+
+    const now = Date.now();
+    pruneStore.insertCheckResult({
+      durationMs: 100,
+      failure: null,
+      matched: true,
+      statusDetail: "200 OK",
+      targetId: t.id,
+      timestamp: new Date(now - 3600000).toISOString(),
+    });
+    pruneStore.insertCheckResult({
+      durationMs: 200,
+      failure: null,
+      matched: true,
+      statusDetail: "200 OK",
+      targetId: t.id,
+      timestamp: new Date(now).toISOString(),
+    });
+
+    const deleted = pruneStore.prune(7200000);
+    expect(deleted).toBe(0);
+
+    const history = pruneStore.getHistory(t.id, "2000-01-01T00:00:00.000Z", "2099-12-31T23:59:59.999Z");
+    expect(history.total).toBe(2);
+
+    pruneStore.close();
+  });
 });