Add nuxt-skills and update auto quotes to use new policy API structure

- Add nuxt-skills (vue, nuxt, nuxt-ui) to .claude/skills/
- Create useCustomerSelection() composable for managing insured/buyer selection
- Create usePolicyApi() composable for policy API operations
- Update auto quote components to use insured/buyer instead of client
- Update vehicle fields: remove valorVehiculo, add market_value, requested_value, rc_limits
- Make chassis_number and engine_number optional
- Update auto quote types and composables to match new API structure
- Update auto quote page to submit to policy API with new structure

.claude/skills/nuxt-ui/SKILL.md

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+---
+name: nuxt-ui
+description: Use when building styled UI with @nuxt/ui v4 components - create forms with validation, implement data tables with sorting, build modal dialogs and overlays, configure Tailwind Variants theming. Use vue skill for raw component patterns, reka-ui for headless primitives.
+license: MIT
+---
+
+# Nuxt UI v4
+
+Component library for Vue 3 and Nuxt 4+ built on Reka UI (headless) + Tailwind CSS v4 + Tailwind Variants.
+
+**Current stable version:** v4.4.0 (January 2026)
+
+## When to Use
+
+- Installing/configuring @nuxt/ui
+- Using UI components (Button, Card, Table, Form, etc.)
+- Customizing theme (colors, variants, CSS variables)
+- Building forms with validation
+- Using overlays (Modal, Toast, CommandPalette)
+- Working with composables (useToast, useOverlay)
+
+**For Vue component patterns:** use `vue` skill
+**For Nuxt routing/server:** use `nuxt` skill
+
+## Available Guidance
+
+| File                                                         | Topics                                                                           |
+| ------------------------------------------------------------ | -------------------------------------------------------------------------------- |
+| **[references/installation.md](references/installation.md)** | Nuxt/Vue setup, pnpm gotchas, UApp wrapper, module options, prefix, tree-shaking |
+| **[references/theming.md](references/theming.md)**           | Semantic colors, CSS variables, app.config.ts, Tailwind Variants                 |
+| **[references/components.md](references/components.md)**     | Component index by category (125+ components)                                    |
+| **components/\*.md**                                         | Per-component details (button.md, modal.md, etc.)                                |
+| **[references/forms.md](references/forms.md)**               | Form components, validation (Zod/Valibot), useFormField                          |
+| **[references/overlays.md](references/overlays.md)**         | Toast, Modal, Slideover, Drawer, CommandPalette                                  |
+| **[references/composables.md](references/composables.md)**   | useToast, useOverlay, defineShortcuts, useScrollspy                              |
+
+## Loading Files
+
+**Consider loading these reference files based on your task:**
+
+- [ ] [references/installation.md](references/installation.md) - if installing or configuring @nuxt/ui
+- [ ] [references/theming.md](references/theming.md) - if customizing theme, colors, or Tailwind Variants
+- [ ] [references/components.md](references/components.md) - if browsing component index or finding components by category
+- [ ] [references/forms.md](references/forms.md) - if building forms with validation (Zod/Valibot)
+- [ ] [references/overlays.md](references/overlays.md) - if using Toast, Modal, Slideover, Drawer, or CommandPalette
+- [ ] [references/composables.md](references/composables.md) - if using useToast, useOverlay, or other composables
+
+**DO NOT load all files at once.** Load only what's relevant to your current task.
+
+## Key Concepts
+
+| Concept           | Description                                                |
+| ----------------- | ---------------------------------------------------------- |
+| UApp              | Required wrapper component for Toast, Tooltip, overlays    |
+| Tailwind Variants | Type-safe styling with slots, variants, compoundVariants   |
+| Semantic Colors   | primary, secondary, success, error, warning, info, neutral |
+| Reka UI           | Headless component primitives (accessibility built-in)     |
+
+> For headless component primitives (API details, accessibility patterns, asChild): read the **reka-ui** skill
+
+## Quick Reference
+
+```ts
+// nuxt.config.ts
+export default defineNuxtConfig({
+  modules: ['@nuxt/ui'],
+  css: ['~/assets/css/main.css']
+})
+```
+
+```css
+/* assets/css/main.css */
+@import 'tailwindcss';
+@import '@nuxt/ui';
+```
+
+```vue
+<!-- app.vue - UApp wrapper required -->
+<template>
+  <UApp>
+    <NuxtPage />
+  </UApp>
+</template>
+```
+
+## Resources
+
+- [Nuxt UI Docs](https://ui.nuxt.com)
+- [Component Reference](https://ui.nuxt.com/components)
+- [Theme Customization](https://ui.nuxt.com/getting-started/theme)
+
+---
+
+_Token efficiency: Main skill ~300 tokens, each sub-file ~800-1200 tokens_