fix(core): serialize state mutations, fix batch flushing/reentrancy, handle falsy initial values, dispose old StatePart on force, and improve notification/error handling

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartstate',
-  version: '2.1.0',
+  version: '2.1.1',
   description: 'A TypeScript-first reactive state management library with middleware, computed state, batching, persistence, and Web Component Context Protocol support.'
 }