Migración a shadcn-vue + Tailwind CSS v4

- Tailwind CSS v4 con @tailwindcss/vite
- shadcn-vue: 19 componentes UI (button, card, dialog, table, select,
  tabs, sidebar, separator, breadcrumb, badge, avatar, dropdown-menu,
  tooltip, input, switch, sheet, skeleton)
- Sidebar collapsible con íconos Lucide
- Theme Teloprax en CSS variables (rojo #E63946, negro #1A1A2E)
- LoginView, DashboardView, CalendarView, SchedulerView migrados
- Eliminado AppShell.vue manual (reemplazado por SidebarProvider)
- Layout con breadcrumb, sidebar trigger, header unificado

src/components/ui/breadcrumb/Breadcrumb.vue

@@ -0,0 +1,18 @@
+<script lang="ts" setup>
+import type { HTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <nav
+    aria-label="breadcrumb"
+    data-slot="breadcrumb"
+    :class="cn('', props.class)"
+  >
+    <slot />
+  </nav>
+</template>

src/components/ui/breadcrumb/BreadcrumbEllipsis.vue

@@ -0,0 +1,24 @@
+<script lang="ts" setup>
+import type { HTMLAttributes } from 'vue'
+
+import { MoreHorizontalIcon } from '@lucide/vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <span
+    data-slot="breadcrumb-ellipsis"
+    role="presentation"
+    aria-hidden="true"
+    :class="cn('size-5 [&>svg]:size-4 flex items-center justify-center', props.class)"
+  >
+    <slot>
+      <MoreHorizontalIcon />
+    </slot>
+    <span class="sr-only">More</span>
+  </span>
+</template>

src/components/ui/breadcrumb/BreadcrumbItem.vue

@@ -0,0 +1,17 @@
+<script lang="ts" setup>
+import type { HTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <li
+    data-slot="breadcrumb-item"
+    :class="cn('gap-1 inline-flex items-center', props.class)"
+  >
+    <slot />
+  </li>
+</template>

src/components/ui/breadcrumb/BreadcrumbLink.vue

@@ -0,0 +1,21 @@
+<script lang="ts" setup>
+import type { PrimitiveProps } from 'reka-ui'
+import type { HTMLAttributes } from 'vue'
+import { Primitive } from 'reka-ui'
+import { cn } from '@/lib/utils'
+
+const props = withDefaults(defineProps<PrimitiveProps & { class?: HTMLAttributes['class'] }>(), {
+  as: 'a',
+})
+</script>
+
+<template>
+  <Primitive
+    data-slot="breadcrumb-link"
+    :as="as"
+    :as-child="asChild"
+    :class="cn('hover:text-foreground transition-colors', props.class)"
+  >
+    <slot />
+  </Primitive>
+</template>

src/components/ui/breadcrumb/BreadcrumbList.vue

@@ -0,0 +1,17 @@
+<script lang="ts" setup>
+import type { HTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <ol
+    data-slot="breadcrumb-list"
+    :class="cn('text-muted-foreground gap-1.5 text-sm flex flex-wrap items-center wrap-break-word', props.class)"
+  >
+    <slot />
+  </ol>
+</template>

src/components/ui/breadcrumb/BreadcrumbPage.vue

@@ -0,0 +1,20 @@
+<script lang="ts" setup>
+import type { HTMLAttributes } from 'vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <span
+    data-slot="breadcrumb-page"
+    role="link"
+    aria-disabled="true"
+    aria-current="page"
+    :class="cn('text-foreground font-normal', props.class)"
+  >
+    <slot />
+  </span>
+</template>

src/components/ui/breadcrumb/BreadcrumbSeparator.vue

@@ -0,0 +1,23 @@
+<script lang="ts" setup>
+import type { HTMLAttributes } from 'vue'
+
+import { ChevronRightIcon } from '@lucide/vue'
+import { cn } from '@/lib/utils'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <li
+    data-slot="breadcrumb-separator"
+    role="presentation"
+    aria-hidden="true"
+    :class="cn('[&>svg]:size-3.5', props.class)"
+  >
+    <slot>
+      <ChevronRightIcon class="cn-rtl-flip" />
+    </slot>
+  </li>
+</template>

src/components/ui/breadcrumb/index.ts

@@ -0,0 +1,7 @@
+export { default as Breadcrumb } from './Breadcrumb.vue'
+export { default as BreadcrumbEllipsis } from './BreadcrumbEllipsis.vue'
+export { default as BreadcrumbItem } from './BreadcrumbItem.vue'
+export { default as BreadcrumbLink } from './BreadcrumbLink.vue'
+export { default as BreadcrumbList } from './BreadcrumbList.vue'
+export { default as BreadcrumbPage } from './BreadcrumbPage.vue'
+export { default as BreadcrumbSeparator } from './BreadcrumbSeparator.vue'