feat: Initial release v0.1.0

WP FediStream - Stream music over ActivityPub

Features:
- Custom post types: Artist, Album, Track, Playlist
- Custom taxonomies: Genre, Mood, License
- User roles: Artist, Label
- Admin dashboard with statistics
- Frontend templates and shortcodes
- Audio player with queue management
- ActivityPub integration with actor support
- WooCommerce product types for albums/tracks
- User library with favorites and history
- Notification system (in-app and email)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

includes/Frontend/Widgets.php

@@ -0,0 +1,38 @@
+<?php
+/**
+ * Widgets handler.
+ *
+ * @package WP_FediStream
+ */
+
+namespace WP_FediStream\Frontend;
+
+// Prevent direct file access.
+if ( ! defined( 'ABSPATH' ) ) {
+    exit;
+}
+
+/**
+ * Registers and manages all plugin widgets.
+ */
+class Widgets {
+
+    /**
+     * Constructor.
+     */
+    public function __construct() {
+        add_action( 'widgets_init', array( $this, 'register_widgets' ) );
+    }
+
+    /**
+     * Register all widgets.
+     *
+     * @return void
+     */
+    public function register_widgets(): void {
+        register_widget( Widgets\RecentReleasesWidget::class );
+        register_widget( Widgets\PopularTracksWidget::class );
+        register_widget( Widgets\FeaturedArtistWidget::class );
+        register_widget( Widgets\NowPlayingWidget::class );
+    }
+}