fix: corregir lang y file_path en frontmatter de funciones existentes

Normaliza lang: typescript → ts en funciones frontend y corrige file_path de functions/infra/ → functions/browser/ en funciones CDP. Actualiza referencias cn_typescript_core → cn_ts_core.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/functions/ui/form_field.md

@@ -1,14 +1,14 @@
 ---
 name: form_field
 kind: component
-lang: typescript
+lang: ts
 domain: ui
 version: "1.0.0"
 purity: impure
 signature: "FormField(props: FormFieldProps): JSX.Element"
 description: "Wrapper de campo de formulario con label, helper text, error y ARIA automáticos. Inyecta id y aria-describedby a hijos."
 tags: [form, field, label, error, component, ui, accessibility]
-uses_functions: [cn_typescript_core]
+uses_functions: [cn_ts_core]
 uses_types: []
 returns: []
 returns_optional: false