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/accordion.md

@@ -0,0 +1,51 @@
+# Accordion
+
+A stacked set of collapsible panels.
+
+> Based on [Reka UI Accordion](https://reka-ui.com/docs/components/accordion)
+
+## Key Props
+
+- `items`: as an array of objects with the following properties:
+
+- `label?: string`{lang="ts-type"}
+- `icon?: string`{lang="ts-type"}
+- `trailingIcon?: string`{lang="ts-type"}
+- `content?: string`{lang="ts-type"}
+- `value?: string`{lang="ts-type"}
+- `disabled?: boolean`{lang="ts-type"}
+- [`slot?: string`{lang="ts-type"}](#with-custom-slot)
+- `class?: any`{lang="ts-type"}
+- `ui?: { item?: ClassNameValue, header?: ClassNameValue, trigger?: ClassNameValue, leadingIcon?: ClassNameValue, label?: ClassNameValue, trailingIcon?: ClassNameValue, content?: ClassNameValue, body?: ClassNameValue }`{lang="ts-type"}
+
+## ::component-code
+
+ignore:
+
+- items
+  external:
+- items
+  externalTypes:
+- AccordionItem[]
+  hide:
+- class
+  props:
+  class: 'px-4'
+  items: - label: 'Icons'
+  icon: 'i-lucide-smile'
+  content: 'You have nothing to do, @nuxt/icon will handle it automatically.
+- `disabled`:
+- `slot`:
+
+## Usage
+
+```vue
+<UAccordion
+  <!-- props here -->
+/>
+```
+
+## Slots
+
+- `#body`
+- `#content`