hook up logging to wasm, example uses new zig-js package

example/app.ts

@@ -0,0 +1,49 @@
+import { ZigJS } from 'zig-js';
+
+const zjs = new ZigJS();
+const importObject = {
+  module: {},
+  env: {
+    log: (ptr: number, len: number) => {
+      const view = new DataView(zjs.memory.buffer, ptr, Number(len));
+      const str = new TextDecoder('utf-8').decode(view);
+      console.log(str);
+    },
+  },
+
+  ...zjs.importObject(),
+};
+
+const url = new URL('ghostty-wasm.wasm', import.meta.url);
+fetch(url.href).then(response =>
+  response.arrayBuffer()
+).then(bytes =>
+  WebAssembly.instantiate(bytes, importObject)
+).then(results => {
+  const {
+    memory,
+    malloc,
+    free,
+    face_new,
+    face_free,
+  } = results.instance.exports;
+  // Give us access to the zjs value for debugging.
+  globalThis.zjs = zjs;
+  console.log(zjs);
+
+  // Initialize our zig-js memory
+  zjs.memory = memory;
+
+  // Create some memory for our string
+  const font = new TextEncoder().encode("monospace");
+  const font_ptr = malloc(font.byteLength);
+  try {
+    new Uint8Array(memory.buffer, font_ptr).set(font);
+
+    // Call whatever example you want:
+    const face = face_new(font_ptr, font.byteLength);
+    face_free(face);
+  } finally {
+    free(font_ptr);
+  }
+});