feat(weather): add globe wind, observed weather and cyclone context (#617)

Wind (NOAA GFS and ECMWF IFS: animated particles, colour field, a reading at map centre), observed weather (NOAA MRMS radar, GOES and NESDIS infrared clouds, lightning density) on one shared history timeline, NHC and CPHC cyclone advisories with tracks and cones, and a WEATHER panel in the right rail. On 3D Tiles the observed products render as raised shells with a sharper window around the view.

Co-authored-by: Gustavo Beneduzi <[email protected]>
Co-authored-by: Daniel Slay <[email protected]>
Co-authored-by: Rehaan Delmotra <[email protected]>
Co-authored-by: Cursor Agent <[email protected]>

src/sources/windBody.js

@@ -0,0 +1,40 @@
+/** Read a fetch body under a hard byte budget, including chunked responses. */
+export async function readWindBody(response, maxBytes, signal) {
+  const fail = () => new Error('Wind response exceeds byte budget');
+  if (Number(response.headers?.get('content-length')) > maxBytes) {
+    await response.body?.cancel();
+    throw fail();
+  }
+  const reader = response.body?.getReader();
+  if (!reader) throw new Error('Wind response has no readable body');
+  const chunks = [];
+  let size = 0;
+  const cancel = () => {
+    void reader.cancel().catch(() => {});
+  };
+  signal?.addEventListener('abort', cancel, { once: true });
+  try {
+    while (true) {
+      signal?.throwIfAborted();
+      const { done, value } = await reader.read();
+      signal?.throwIfAborted();
+      if (done) break;
+      size += value.byteLength;
+      if (size > maxBytes) throw fail();
+      chunks.push(value);
+    }
+    const bytes = new Uint8Array(size);
+    let offset = 0;
+    for (const chunk of chunks) {
+      bytes.set(chunk, offset);
+      offset += chunk.byteLength;
+    }
+    return bytes;
+  } catch (error) {
+    cancel();
+    throw error;
+  } finally {
+    signal?.removeEventListener('abort', cancel);
+    reader.releaseLock();
+  }
+}