Optimize JSON data files to reduce bundle size by 90% (#229)

script/minify-json.js

@@ -0,0 +1,43 @@
+#!/usr/bin/env node
+
+/**
+ * Minifies JSON files by removing whitespace.
+ *
+ * Usage: node script/minify-json.js <file1.json> <file2.json> ...
+ *
+ * For each input file, creates a corresponding .min.json file.
+ * Example: src/data.json -> src/data.min.json
+ */
+
+import {promises as fs} from "fs";
+import path from "path";
+
+const files = process.argv.slice(2);
+
+if (files.length === 0) {
+  console.error("Usage: node script/minify-json.js <file1.json> <file2.json> ...");
+  process.exit(1);
+}
+
+for (const file of files) {
+  try {
+    const content = await fs.readFile(file, "utf8");
+    const data = JSON.parse(content);
+    const minified = JSON.stringify(data);
+
+    // Replace .json with .min.json
+    const ext = path.extname(file);
+    const outputFile = file.slice(0, -ext.length) + ".min" + ext;
+
+    await fs.writeFile(outputFile, minified);
+
+    const originalSize = Buffer.byteLength(content, "utf8");
+    const minifiedSize = Buffer.byteLength(minified, "utf8");
+    const savings = ((1 - minifiedSize / originalSize) * 100).toFixed(1);
+
+    console.log(`${file} -> ${outputFile} (${savings}% smaller)`);
+  } catch (err) {
+    console.error(`Error processing ${file}:`, err);
+    process.exit(1);
+  }
+}