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/components/page-section.md

@@ -0,0 +1,30 @@
+# PageSection
+
+A responsive section for your pages.
+
+## Key Props
+
+- `title`: to set the title of the section.
+- `description`: to set the description of the section.
+- `headline`: to set the headline of the section.
+- `icon`: to set the icon of the section.
+- `features`: to display a list of [PageFeature](/docs/components/page-feature) under the description as an array of objects with the following properties:
+
+- `title?: string`{lang="ts-type"}
+- `description?: string`{lang="ts-type"}
+- `icon?: string`{lang="ts-type"}
+- `orientation?: 'horizontal' | 'vertical'`{lang="ts-type"}
+
+You can pass any property from the [Link](/docs/components/link#props) component such as `to`, `target`, etc.
+
+- `links`: to display a list of [Button](/docs/components/button) under the description.
+- `orientation`: to change the orientation with the default slot.
+- `reverse`: to reverse the orientation of the default slot.
+
+## Usage
+
+```vue
+<UPageSection
+  <!-- props here -->
+/>
+```