feat(fires): MODIS in Active Fires and a Fire Perimeters layer (#737)

Adds MODIS NRT to Active Fires and a keyless Fire Perimeters layer (NIFC WFIGS) with
InciWeb incident links, served through a capped, cached /api/fire-perimeters proxy.

Co-authored-by: Gustavo Beneduzi <[email protected]>
Co-authored-by: James Cooke <[email protected]>

src/app/constructCatalog.test.mjs

@@ -39,7 +39,7 @@ test('catalogs construct distinct layers and classification from their supplied
     signal: b.signal,
     surface: fixtureSurface(b.signal),
   });
-  assert.equal(first.layers.length, 28);
+  assert.equal(first.layers.length, 29);
   assert.ok(first.get('local-adsb'), 'Local ADS-B is registered');
   assert.deepEqual(
     first.metadata.find(({ id }) => id === 'local-adsb'),
@@ -58,6 +58,7 @@ test('catalogs construct distinct layers and classification from their supplied
       first.get(id).getDiagnostics().clock.target,
       '2026-09-21T12:00:00.000Z',
     );
+  assert.ok(first.get('fire-perimeters'));
   assert.ok(first.get('transit'));
   const order = first.layers.map(({ id }) => id);
   assert.deepEqual(