🐛 Fix some issues with vendored libraries and build process

related to how package.json is defined and how modules
are exported

frontend/scripts/build-libs.js

@@ -0,0 +1,49 @@
+import * as esbuild from "esbuild";
+import { readFile } from "node:fs/promises";
+
+const filter =
+  /react-virtualized[/\\]dist[/\\]es[/\\]WindowScroller[/\\]utils[/\\]onScroll\.js$/;
+
+const fixReactVirtualized = {
+  name: "esbuild-plugin-react-virtualized",
+  setup({ onLoad }) {
+    onLoad({ filter }, async ({ path }) => {
+      const code = await readFile(path, "utf8");
+      const broken = `import { bpfrpt_proptype_WindowScroller } from "../WindowScroller.js";`;
+      return { contents: code.replace(broken, "") };
+    });
+  },
+};
+
+const rebuildNotify = {
+  name: "rebuild-notify",
+  setup(build) {
+    build.onEnd((result) => {
+      // console.log(result);
+      // [:main] Build completed. (1003 files, 1 compiled, 0 warnings, 9.06s)
+      console.log(
+        `[:libs] Build completed. (${result.errors.length} warnings, ${result.errors.length} errors)`,
+      );
+    });
+  },
+};
+
+const config = {
+  entryPoints: ["target/index.js"],
+  bundle: true,
+  format: "iife",
+  outfile: "resources/public/js/libs.js",
+  plugins: [fixReactVirtualized, rebuildNotify],
+};
+
+async function watch() {
+  let ctx = await esbuild.context(config);
+  return ctx.watch();
+}
+
+if (process.argv.includes("--watch")) {
+  await watch();
+} else {
+  const localConfig = { ...config, minify: true };
+  await esbuild.build(localConfig);
+}