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>

CHANGELOG.md

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+# Changelog
+
+All notable changes to WP FediStream will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.1.0] - 2026-01-28
+
+Initial release of WP FediStream - a WordPress plugin for streaming music over ActivityPub.
+
+### Added
+
+#### Core Plugin Structure
+
+- Plugin structure with WordPress Plugin API
+- Composer setup with Twig 3.0 template engine
+- Internationalization support with .pot template and German (de_CH) translation
+
+#### Custom Post Types
+
+- `fedistream_artist` - Artist/band profiles with social links, biography, and member management
+- `fedistream_album` - Albums, EPs, singles, and compilations with release metadata
+- `fedistream_track` - Individual tracks with audio upload, duration, BPM, key, and ISRC codes
+- `fedistream_playlist` - User-created playlists with drag-drop ordering
+
+#### Custom Taxonomies
+
+- `fedistream_genre` - Hierarchical music genres with default terms
+- `fedistream_mood` - Non-hierarchical mood tags for tracks and playlists
+- `fedistream_license` - Copyright and Creative Commons license options
+
+#### User Roles
+
+- `fedistream_artist` - Manage own content, upload files, view stats
+- `fedistream_label` - Manage all content, taxonomies, and view all statistics
+
+#### Admin Interface
+
+- Dashboard with statistics and quick actions
+- Organized menu under "FediStream"
+- Meta boxes for all post types with full metadata support
+- Settings page for ActivityPub and WooCommerce configuration
+- Custom list table columns with sortable fields
+- Artwork thumbnails, artist links, and duration display
+
+#### Frontend Display
+
+- Archive templates for all post types and taxonomies
+- Single templates with full metadata display
+- Card partials for responsive grid layouts
+- Comprehensive CSS styling with custom properties for theming
+
+#### Shortcodes
+
+- `[fedistream_artist]` - Display artist profile
+- `[fedistream_album]` - Display album with tracklist
+- `[fedistream_track]` - Display track with player
+- `[fedistream_playlist]` - Display playlist with tracks
+- `[fedistream_latest_releases]` - Recent releases grid
+- `[fedistream_popular_tracks]` - Popular tracks list
+- `[fedistream_artists]` - Artists grid
+- `[fedistream_player]` - Audio player widget
+- `[fedistream_library]` - User library page
+
+#### Widgets
+
+- Recent Releases Widget
+- Popular Tracks Widget
+- Featured Artist Widget
+- Now Playing Widget
+
+#### Audio Player
+
+- Full playback controls (play, pause, next, previous)
+- Queue management with add, clear, shuffle functionality
+- Repeat modes (none, all, one)
+- Shuffle mode with Fisher-Yates algorithm
+- Progress bar with seek functionality
+- Volume control with mute toggle and localStorage persistence
+- Media Session API integration for system controls
+- Play count tracking via AJAX
+
+#### ActivityPub Integration
+
+- Integration with WordPress ActivityPub plugin
+- Artists represented as Person/Group actors
+- RSA key generation for HTTP Signatures
+- Webfinger support for artist discovery
+- Object transformers for tracks, albums, and playlists
+- Inbox handling for Follow, Like, Announce, and Create activities
+- Outbox publishing with Create, Update, and Delete activities
+- Follower management with shared inbox deduplication
+- REST API endpoints for actors, inbox, outbox, and collections
+
+#### WooCommerce Integration (Optional)
+
+- Album product type extending WC_Product
+- Track product type extending WC_Product
+- Multiple download formats (MP3, FLAC, WAV, AAC, OGG)
+- Pricing models: Fixed, Pay What You Want, Name Your Price
+- Secure digital delivery with purchase verification
+- Album ZIP downloads with all tracks and cover art
+- Streaming access control based on purchases
+- 30-second preview for non-purchasers
+- Purchase tracking database table
+
+#### User Library
+
+- Favorite tracks, albums, and playlists
+- Follow local artists
+- Listening history tracking with clear option
+- Library page with tabs (Favorites, Artists, History)
+- Filter favorites by content type
+- AJAX endpoints for all library operations
+
+#### Notification System
+
+- In-app notifications with admin bar indicator
+- Email notifications with HTML templates
+- Notification types: new_release, new_follower, fediverse_like, fediverse_boost, playlist_added, purchase, system
+- Event triggers for releases, follows, and Fediverse interactions
+- User preference settings for email notifications
+- Real-time polling and mark as read functionality
+
+#### Database Tables
+
+- `fedistream_plays` - Track play statistics
+- `fedistream_playlist_tracks` - Playlist-track relationships
+- `fedistream_followers` - ActivityPub followers
+- `fedistream_purchases` - WooCommerce purchase tracking
+- `fedistream_favorites` - User favorites
+- `fedistream_user_follows` - Local artist follows
+- `fedistream_listening_history` - Track play history
+- `fedistream_notifications` - User notifications
+- `fedistream_reactions` - Fediverse reactions (likes, boosts)
+
+---
+
+[Unreleased]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.1.0...HEAD
+[0.1.0]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/releases/tag/v0.1.0