feat: add devExtraction option to skip catalog writes during dev

packages/next-intl/src/plugin/extractor/initExtractionCompiler.tsx

@@ -25,9 +25,10 @@ export default function initExtractionCompiler(pluginConfig: PluginConfig) {
   // - lint
   //
   // What remains are:
-  // - dev (NODE_ENV=development)
+  // - dev (NODE_ENV=development), skipped when devExtraction is false
   // - build (NODE_ENV=production)
-  const shouldRun = isDevelopment || isNextBuild;
+  const devExtraction = experimental.extract?.devExtraction !== false;
+  const shouldRun = (isDevelopment && devExtraction) || isNextBuild;
   if (!shouldRun) return;
 
   runOnce(() => {

packages/next-intl/src/plugin/types.tsx

@@ -27,6 +27,12 @@ export type PluginConfig = {
     /** Enables the usage of `useExtracted`, to be used in combination with `srcPath` and `messages`. */
     extract?: {
       sourceLocale: string;
+      /**
+       * Whether to automatically extract messages during `next dev`.
+       * The SWC transform for `useExtracted` runs regardless.
+       * @default true
+       */
+      devExtraction?: boolean;
     };
   };
 };