Adds namespace support to ViteExtension, allowing multiple independent Vite builds (e.g. a plugin or theme) to coexist in a single Sugar application.

What changed

New: ViteConfig value object

A new ViteConfig readonly class consolidates all per-build configuration: assetBaseUrl, manifestPath, devServerUrl, injectClient, and defaultEntry. It is used both for the default (root) context and for named namespaces, keeping resolver internals DRY.

ViteExtension — new $namespaces parameter

new ViteExtension(
    assetBaseUrl: '/build/',
    manifestPath: ROOT . '/webroot/build/.vite/manifest.json',
    namespaces: [
        'theme' => new ViteConfig(
            assetBaseUrl: '/theme/build/',
            manifestPath: ROOT . '/plugins/Theme/webroot/build/.vite/manifest.json',
            devServerUrl: 'http://localhost:5174',
        ),
    ],
)

Template syntax

Namespace entries use an @name/ prefix, consistent with Sugar's existing template namespace convention:

<s-template s:vite="'@theme/resources/js/theme.ts'" />

<!-- Mix default and namespaced entries -->
<s-template s:vite="['resources/js/app.ts', '@theme/resources/js/theme.ts']" />

ViteAssetResolver — fully namespace-aware

• Per-namespace manifest caching (array<string, array> keyed by namespace)
• Per-namespace @vite/client injection tracking
• devServerUrl falls back to the root config when omitted from a namespace ViteConfig
• Unknown namespace throws a descriptive exception listing all registered namespaces

Tests

• 9 new unit tests in ViteAssetResolverTest covering: dev server routing per namespace, root server fallback, independent manifest loading, unknown namespace error, per-namespace client injection, entry deduplication, and defaultEntry usage
• 1 new unit test in ViteExtensionTest verifying namespace configs flow through to the resolver
• 2 unit tests in new ViteConfigTest for the value object
• 6 new integration tests in ViteIntegrationTest covering multi-build dev/prod rendering and mixed-namespace entry lists

Backward compatibility

Fully backward-compatible. The $namespaces parameter defaults to [] and all existing flat constructor parameters on ViteExtension are unchanged.