feat(ui-lib): demo pages for c-lib components

src/ui/c-link/c-link.demo.vue

@@ -0,0 +1,12 @@
+<template>
+  <div>
+    <h2>Default</h2>
+    <c-link mx-1> Link </c-link>
+  </div>
+</template>
+
+<script lang="ts" setup>
+import CLink from './c-link.vue';
+</script>
+
+<style lang="less" scoped></style>

src/ui/c-link/c-link.vue

@@ -16,7 +16,15 @@ const props = defineProps<{
 const { href, to } = toRefs(props);
 
 const theme = useTheme();
-const tag = computed(() => (href?.value ? 'a' : RouterLink));
+const tag = computed(() => {
+  if (href?.value) {
+    return 'a';
+  }
+  if (to?.value) {
+    return RouterLink;
+  }
+  return 'span';
+});
 </script>
 
 <style lang="less" scoped>