fix(fires): reject rolled-over acquisition dates and document UTC times

src/tools/queries/hazards.test.mjs

@@ -15,3 +15,32 @@ test('a fire acquired at 00:45 UTC reads as 00:45, not "45"', async () => {
   ]).call('get_active_fires', { area: { bbox: [120, 23, 122, 25] } });
   assert.equal(result.data.rows[0].acquired, '2026-01-01T00:45:00.000Z');
 });
+
+test('fire acquisition timestamps reject impossible calendar dates', async () => {
+  for (const acqDate of [
+    '2026-02-29',
+    '2026-02-30',
+    '2026-04-31',
+    '1900-02-29',
+    '2026-13-01',
+    '2026-01-00',
+  ]) {
+    const result = await catalogWith([
+      { lat: 24, lon: 121, acqDate, acqTime: '45' },
+    ]).call('get_active_fires', { area: { bbox: [120, 23, 122, 25] } });
+    assert.equal(result.data.rows[0].acquired, null, acqDate);
+  }
+});
+
+test('fire acquisition timestamps preserve valid leap days and UTC times', async () => {
+  for (const [acqDate, acqTime, expected] of [
+    ['2024-02-29', '45', '2024-02-29T00:45:00.000Z'],
+    ['2000-02-29', 0, '2000-02-29T00:00:00.000Z'],
+    ['2026-04-30', '2359', '2026-04-30T23:59:00.000Z'],
+  ]) {
+    const result = await catalogWith([
+      { lat: 24, lon: 121, acqDate, acqTime },
+    ]).call('get_active_fires', { area: { bbox: [120, 23, 122, 25] } });
+    assert.equal(result.data.rows[0].acquired, expected);
+  }
+});