build: Make pnpm build-profile emit usable rspack stats

.gitignore

@@ -66,6 +66,7 @@ yalc.lock
 ngrok.yml
 package-lock.json
 yarn.lock
+stats.rspack.json
 .claude/settings.local.json
 .claude/launch.json
 .claude/plans

package.json

@@ -40,7 +40,7 @@
     "build": "NODE_OPTIONS='--max-old-space-size=4096' rspack --config ./rspack.config.ts",
     "build-js-loader": "node scripts/build-js-loader.ts",
     "build-js-po": "node build-utils/ts-extract-gettext.ts",
-    "build-profile": "rspack --profile --json > stats.json",
+    "build-profile": "RSPACK_STATS=1 NODE_ENV=production rspack --mode production --config ./rspack.config.ts --json=stats.rspack.json",
     "extract-form-fields": "node scripts/extractFormFields.ts",
     "gen:embed-widgets": "esbuild scripts/genEmbedWidgets.ts --bundle --platform=node --format=esm --packages=external --outfile=.artifacts/genEmbedWidgets.mjs && node .artifacts/genEmbedWidgets.mjs",
     "gen:platform-info": "node scripts/genPlatformProductInfo.ts",

rspack.config.ts

@@ -990,4 +990,28 @@ if (env.WEBPACK_CACHE_PATH) {
 }
 
 const configs = [appConfig, workerConfig];
+
+// Configure JSON stats explicitly; the CLI defaults to errors and warnings.
+// Keep module detail for bundle analysis without embedding source text.
+if (env.RSPACK_STATS) {
+  for (const config of configs) {
+    config.stats = {
+      all: false,
+      modules: true,
+      nestedModules: true,
+      source: false,
+      assets: true,
+      chunks: true,
+      chunkRelations: true,
+      chunkGroups: true,
+      entrypoints: true,
+      hash: true,
+      timings: true,
+      version: true,
+      errors: true,
+      warnings: true,
+    };
+  }
+}
+
 export default configs;