feat: add experimental.fullBundleMode

Author: sapphi-red

packages/vite/src/node/config.ts

@@ -535,6 +535,13 @@ export interface ExperimentalOptions {
    * @default false
    */
   enableNativePlugin?: boolean | 'resolver'
+  /**
+   * Enable full bundle mode in dev.
+   *
+   * @experimental
+   * @default false
+   */
+  fullBundleMode?: boolean
 }
 
 export interface LegacyOptions {
@@ -733,6 +740,7 @@ export const configDefaults = Object.freeze({
     enableNativePlugin: process.env._VITE_TEST_NATIVE_PLUGIN
       ? 'resolver'
       : false,
+    fullBundleMode: false,
   },
   future: {
     removePluginHookHandleHotUpdate: undefined,