initial: mirror of @fn_library from fn_registry

75 components + DESIGN_SYSTEM.md + sync script.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

components/skeleton.md

@@ -0,0 +1,66 @@
+---
+name: skeleton
+kind: component
+lang: ts
+domain: ui
+version: "1.0.0"
+purity: impure
+signature: "Skeleton(props: HTMLAttributes<HTMLDivElement>): JSX.Element"
+description: "Sistema de loading skeletons: base, text, card, avatar, button, table. Variantes preconfiguradas para estados de carga. Mantine Skeleton."
+tags: [skeleton, loading, placeholder, component, ui, mantine]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: ["@mantine/core"]
+output: "Componente Skeleton que renderiza placeholder de carga con 6 variantes preconfiguradas (text, card, avatar, button, table)"
+tested: false
+tests: []
+test_file_path: ""
+file_path: "frontend/functions/ui/skeleton.tsx"
+props:
+  - name: className
+    type: "string"
+    required: false
+    description: "Clases CSS adicionales"
+  - name: lines
+    type: "number"
+    required: false
+    description: "Número de líneas (SkeletonText, default 3)"
+  - name: rows
+    type: "number"
+    required: false
+    description: "Filas de tabla (SkeletonTable, default 5)"
+  - name: columns
+    type: "number"
+    required: false
+    description: "Columnas de tabla (SkeletonTable, default 4)"
+  - name: size
+    type: "'xs' | 'sm' | 'md' | 'lg' | 'xl'"
+    required: false
+    description: "Tamaño del avatar (SkeletonAvatar, default md)"
+emits: []
+has_state: false
+framework: react
+variant: [base, text, card, avatar, button, table]
+source_repo: "https://gitea-dgg044oo04woo4ggcsws4gk0.organic-machine.com/Bl4cksmith/Frontend_Library"
+source_license: "MIT"
+source_file: "frontend/src/components/ui/skeleton.tsx"
+---
+
+## Ejemplo
+
+```tsx
+<SkeletonCard />
+<SkeletonText lines={4} />
+<SkeletonTable rows={10} columns={5} />
+<SkeletonAvatar size="lg" />
+<SkeletonButton />
+```
+
+## Notas
+
+Exporta 6 variantes preconfiguradas. Todas componen sobre Mantine Skeleton con animacion nativa.
+La ultima linea de SkeletonText se acorta a 80% para simular texto real.
+SkeletonCard incluye imagen (180px) + dos lineas de texto. SkeletonAvatar usa circle para forma redonda.