v0.3.2

What's Changed

• Unified plugin architecture around ServiceLoader, Plugin, and Utilities classes, matching sibling plugins.
• Updated namespace from Bmd\ to Bmd\FeaturedImageBlockFallback\ for safer standalone and Composer usage.
• Moved asset path and URL filters into setPath()/setUrl() setters.
• Replaced buildPath()/buildUrl() helpers with inline path construction.
• Simplified getScriptAssets() into getAssetData(string $key).
• Replaced combined lint-build workflow with separate lint-css, lint-js, and lint-php workflows.
• Removed FallbackPreview editor component (stashed for future work).
• Renamed plugin entry file to featured-image-block-fallback.php.