* build(@vben-core/form-ui): update form validation dependencies
* refactor(@vben-core/form-ui): replace vee-validate with TanStack Form
* test(@vben-core/form-ui): cover TanStack Form migration
* docs(@vben/docs): document Zod 4 form migration
* refactor(project): update form adapters
* refactor(project): migrate application form consumers
* refactor(@vben/playground): migrate form examples
* docs(@vben/docs): fix validate return type and required rule empty check in form docs
* fix(@vben-core/form-ui): resolve oxlint and eslint errors
- rewrite nested ternary expressions as if/else in form-field-array.vue and form-runtime.ts
- sort @tanstack/vue-form before @vben-core/composables in package.json
* chore: fix merge artifacts and formatting
- move dependencies before devDependencies in root package.json
- update preferences snapshot for widget positioning fields
- format form-array demo README
* refactor(@vben-core/form-ui): optimize form runtime and value flow
- add fine-grained field selectors and atomic dependency resolution
- expose raw and formatted value snapshots with focused regression coverage
* fix(@vben/layouts): dispose sortable instance on unmount
* docs(@vben/docs): document form runtime API changes
- list added, changed, removed, and deprecated form APIs
- document atomic dependencies and raw versus formatted values
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