* refactor(@vben-core/form-ui)!: group field slot component props
* fix(@vben-core/form-ui): stabilize grouped field slot bindings
Resolve function-based common component props with field context.
Preserve internal model and event bindings when custom field slots spread componentProps.
Add regression coverage for array contexts, disabled precedence, and stale binding isolation.
* feat(@vben/vite-config): warn about field slot migration
Print the temporary field-slot migration warning when the development server starts.
Inject the same message into the browser console and keep the plugin serve-only.
* docs(@vben/docs): document field slot migration
Place the breaking field-slot notice at the start of both form documents.
Explain old and new bindings, development warnings, and planned notice removal.
* feat(@vben/playground): extend custom form example
Add a switchable input and select field to demonstrate schema component updates.
Update the composite phone field to emit new tuple values so validation observes changes.