fix(wind): bound GFS acquisition and preserve canvas trails and lifecycle

server/providers/wind/grid.js

@@ -21,6 +21,8 @@ export function resampleWindGrid({
   dx = 1,
   dy = 1,
 }) {
+  if (!Number.isInteger(ni) || !Number.isInteger(nj) || ni < 1 || nj < 1 || ni * nj > 2_000_000 || u?.length !== ni * nj || v?.length !== ni * nj || ![lo1, la1, di, dj, dx, dy].every(Number.isFinite) || di <= 0 || dj <= 0 || dx < 0.25 || dy < 0.25 || dx > 180 || dy > 180)
+    throw new Error('Invalid wind grid geometry');
   const nx = Math.round(360 / dx);
   const ny = Math.round(180 / dy) + 1;
   const outU = new Float32Array(nx * ny);