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/context-menu.md

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+# ContextMenu
+
+A menu to display actions when right-clicking on an element.
+
+> Based on [Reka UI ContextMenu](https://reka-ui.com/docs/components/context-menu)
+
+## Key Props
+
+- `items`: as an array of objects with the following properties:
+
+- `label?: string`{lang="ts-type"}
+- `icon?: string`{lang="ts-type"}
+- `avatar?: AvatarProps`{lang="ts-type"}
+- `kbds?: string[] | KbdProps[]`{lang="ts-type"}
+- [`type?: "link" | "label" | "separator" | "checkbox"`{lang="ts-type"}](#with-checkbox-items)
+- [`color?: "error" | "primary" | "secondary" | "success" | "info" | "warning" | "neutral"`{lang="ts-type"}](#with-color-items)
+- [`checked?: boolean`{lang="ts-type"}](#with-checkbox-items)
+- `disabled?: boolean`{lang="ts-type"}
+- [`slot?: string`{lang="ts-type"}](#with-custom-slot)
+- `onSelect?: (e: Event) => void`{lang="ts-type"}
+- [`onUpdateChecked?: (checked: boolean) => void`{lang="ts-type"}](#with-checkbox-items)
+- `children?: ContextMenuItem[] | ContextMenuItem[][]`{lang="ts-type"}
+- `class?: any`{lang="ts-type"}
+- `ui?: { item?: ClassNameValue, label?: ClassNameValue, separator?: ClassNameValue, itemLeadingIcon?: ClassNameValue, itemLeadingAvatarSize?: ClassNameValue, itemLeadingAvatar?: ClassNameValue, itemLabel?: ClassNameValue, itemLabelExternalIcon?: ClassNameValue, itemTrailing?: ClassNameValue, itemTrailingIcon?: ClassNameValue, itemTrailingKbds?: ClassNameValue, itemTrailingKbdsSize?: ClassNameValue }`{lang="ts-type"}
+
+You can pass any property from the [Link](/docs/components/link#props) component such as `to`, `target`, etc.
+
+- `size`: to change the size of the ContextMenu.
+- `modal`: to control whether the ContextMenu blocks interaction with outside content.
+- `disabled`: to disable the ContextMenu.
+- `slot`:
+
+## Usage
+
+```vue
+<UContextMenu
+  <!-- props here -->
+/>
+```
+
+## Slots
+
+- `#item`