refactor(plugin-rsc): convert hooks to nested handler form (#1093)

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: hi-ogawa

packages/plugin-rsc/src/core/plugin.ts

@@ -4,23 +4,28 @@ export default function vitePluginRscCore(): Plugin[] {
   return [
     {
       name: 'rsc:patch-react-server-dom-webpack',
-      transform(originalCode, _id, _options) {
-        let code = originalCode
-        if (code.includes('__webpack_require__.u')) {
-          // avoid accessing `__webpack_require__` on import side effect
-          // https://github.com/facebook/react/blob/a9bbe34622885ef5667d33236d580fe7321c0d8b/packages/react-server-dom-webpack/src/client/ReactFlightClientConfigBundlerWebpackBrowser.js#L16-L17
-          code = code.replaceAll('__webpack_require__.u', '({}).u')
-        }
+      transform: {
+        handler(originalCode, _id, _options) {
+          let code = originalCode
+          if (code.includes('__webpack_require__.u')) {
+            // avoid accessing `__webpack_require__` on import side effect
+            // https://github.com/facebook/react/blob/a9bbe34622885ef5667d33236d580fe7321c0d8b/packages/react-server-dom-webpack/src/client/ReactFlightClientConfigBundlerWebpackBrowser.js#L16-L17
+            code = code.replaceAll('__webpack_require__.u', '({}).u')
+          }
 
-        // the existance of `__webpack_require__` global can break some packages
-        // https://github.com/TooTallNate/node-bindings/blob/c8033dcfc04c34397384e23f7399a30e6c13830d/bindings.js#L90-L94
-        if (code.includes('__webpack_require__')) {
-          code = code.replaceAll('__webpack_require__', '__vite_rsc_require__')
-        }
+          // the existance of `__webpack_require__` global can break some packages
+          // https://github.com/TooTallNate/node-bindings/blob/c8033dcfc04c34397384e23f7399a30e6c13830d/bindings.js#L90-L94
+          if (code.includes('__webpack_require__')) {
+            code = code.replaceAll(
+              '__webpack_require__',
+              '__vite_rsc_require__',
+            )
+          }
 
-        if (code !== originalCode) {
-          return { code, map: null }
-        }
+          if (code !== originalCode) {
+            return { code, map: null }
+          }
+        },
       },
     },
     {