feat: add sleep report page

scripts/tests/report-utils.test.cjs

@@ -0,0 +1,45 @@
+const assert = require("node:assert/strict");
+const {
+  getSleepLevel,
+  getStatusTone,
+  pickReportRecord
+} = require("../../tmp/report-tests/report-utils.js");
+
+function run(name, fn) {
+  try {
+    fn();
+    console.log(`PASS ${name}`);
+  } catch (error) {
+    console.error(`FAIL ${name}`);
+    throw error;
+  }
+}
+
+run("getSleepLevel maps score 65 to 合格", () => {
+  assert.deepEqual(getSleepLevel(65), {
+    label: "合格",
+    tone: "warning"
+  });
+});
+
+run("getStatusTone maps 异常 to danger", () => {
+  assert.equal(getStatusTone("异常"), "danger");
+});
+
+run("pickReportRecord falls back to first device record", () => {
+  const record = pickReportRecord(
+    {
+      "2026-05-08": {
+        roomA: {
+          deviceA: { score: 65 },
+          deviceB: { score: 79 }
+        }
+      }
+    },
+    "2026-05-08",
+    "roomA",
+    "missing-device"
+  );
+
+  assert.equal(record.score, 65);
+});