Push HMR updates before the SSR rebuild in dev

Client-only edits are sent to the browser right after the hydration build,
without re-running server functions; SSR rebuilds afterwards and props are
re-fetched only when a .server.ts output changed or after fullRebuild. Page
requests wait for an in-flight SSR rebuild. The SSR build no longer runs
Tailwind, the PostCSS processor is reused across rebuilds, and the watcher
debounce drops from 200ms to 50ms.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

dist/functions/bundler/all-pages-esbuild-context-bundler.d.ts

@@ -6,6 +6,11 @@ type Params = {
     }) => Promise<void> | void;
     build_only?: boolean;
     start?: boolean;
+    /**
+     * Re-fetch server props for every HMR client after the build, even if
+     * only client code changed. Only applies when the context is recreated.
+     */
+    refresh_props?: boolean;
 };
 /**
  * True when `local_path` is a hydration entry of the current esbuild context.