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/changelog-version.md

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+# ChangelogVersion
+
+A customizable article to display in a changelog.
+
+## Key Props
+
+- `title`: to display the title of the ChangelogVersion.
+- `description`: to display the description of the ChangelogVersion.
+- `date`: to display the date of the ChangelogVersion.
+- `badge`: to display a [Badge](/docs/components/badge) on the ChangelogVersion.
+- `image`: to display an image in the BlogPost.
+- `authors`: to display a list of [User](/docs/components/user) in the ChangelogVersion as an array of objects with the following properties:
+
+- `name?: string`{lang="ts-type"}
+- `description?: string`{lang="ts-type"}
+- `avatar?: Omit<AvatarProps, 'size'>`{lang="ts-type"}
+- `chip?: boolean | Omit<ChipProps, 'size' | 'inset'>`{lang="ts-type"}
+- `size?: UserProps['size']`{lang="ts-type"}
+- `orientation?: UserProps['orientation']`{lang="ts-type"}
+
+You can pass any property from the [Link](/docs/components/link#props) component such as `to`, `target`, etc.
+
+- `indicator`: to hide the indicator dot on the left.
+
+## Usage
+
+```vue
+<UChangelogVersion
+  <!-- props here -->
+/>
+```