fix: carry weather and fire freshness into tool answers

get_weather dropped the proxy's stale status and get_active_fires dropped
FIRMS staleness and failed satellite sources, so answers and the HUD caption
read them as current. Both now report them, and the caption context marks
such sections stale or degraded.

src/tools/queries/environment.test.mjs

@@ -694,3 +694,51 @@ test('a fire perimeter enclosing the whole area is found', async () => {
     ['big'],
   );
 });
+
+test('stale weather and partial fire data reach answers and the HUD caption', async () => {
+  const sent = [];
+  const summary = {
+    async summarize(context) {
+      sent.push(context);
+      return { ok: true, status: 200, data: { summary: 'Austin STALE' } };
+    },
+  };
+  const staleWeather = {
+    getConditions: async () => ({ status: 'stale', weather: conditions }),
+  };
+  const fires = {
+    getSnapshot: async () => ({
+      stale: false,
+      fetchedAt: Date.UTC(2026, 0, 1),
+      sources: [
+        { source: 'VIIRS_NOAA20_NRT', ok: true },
+        { source: 'VIIRS_SNPP_NRT', ok: false },
+      ],
+      fires: [],
+    }),
+  };
+  const catalog = catalogWith({
+    weather: staleWeather,
+    summary,
+    places,
+    fires,
+  });
+  const weatherResult = await catalog.call('get_weather', {
+    location: { place: 'Austin' },
+  });
+  assert.equal(weatherResult.data.stale, true);
+  assert.match(weatherResult.summary, /\(data may be stale\)\.$/);
+  const fireResult = await catalog.call('get_active_fires', {
+    area: { place: 'Austin' },
+  });
+  assert.deepEqual(fireResult.data.missing_sources, ['VIIRS_SNPP_NRT']);
+  assert.match(fireResult.summary, /\(no data from VIIRS_SNPP_NRT\)\.$/);
+  await catalog.call('get_hud_caption', { area: { place: 'Austin' } });
+  assert.deepEqual(
+    sent[0].enabledLayers.map((layer) => [layer.id, layer.feedState]),
+    [
+      ['weather', 'stale'],
+      ['fires', 'degraded'],
+    ],
+  );
+});