fix(zustand): v5 selector stability issues (#4539)

* fix(zustand): v5 selector stability issues

* address comments

scripts/format-generated-source.ts

@@ -0,0 +1,19 @@
+import { spawnSync } from 'node:child_process'
+
+export function formatGeneratedSource(source: string, stdinFilePath: string, cwd: string): string {
+  const result = spawnSync('bunx', ['biome', 'format', '--stdin-file-path', stdinFilePath], {
+    cwd,
+    encoding: 'utf8',
+    input: source,
+  })
+
+  if (result.status !== 0) {
+    throw new Error(
+      `Failed to format generated source for ${stdinFilePath}:\n${
+        result.stderr || result.stdout || 'unknown error'
+      }`
+    )
+  }
+
+  return result.stdout
+}