Added new "Now Playing" widget

.common/enums/smtc-enums.js

@@ -0,0 +1,28 @@
+// ==========================================
+// WINDOWS SMTC API CONSTANTS (IMMUTABLE)
+// ==========================================
+
+// Playback Status (session.playback_info.PlaybackStatus)
+const PlaybackStatus = Object.freeze({
+    CLOSED: 0,   // Engine uninitialized or empty
+    OPENED: 1,   // Pipeline loaded but idling
+    CHANGING: 2, // Buffering, track skipping, or seeking
+    STOPPED: 3,  // Track queued but fully stopped (at 0:00)
+    PLAYING: 4,  // Audio actively streaming (Run dead reckoning)
+    PAUSED: 5    // Audio frozen (Halt dead reckoning)
+});
+
+// Playback Type (session.playback_info.PlaybackType)
+const PlaybackType = Object.freeze({
+    UNKNOWN: 0, // Generic audio wrapper
+    MUSIC: 1,   // Pure audio pipeline (Spotify, iTunes, etc.)
+    VIDEO: 2,   // Visual media feed (Chrome/Firefox YouTube/Twitch tabs)
+    IMAGE: 3    // Static slideshow presentation hook
+});
+
+// Auto Repeat Mode (session.playback_info.AutoRepeatMode)
+const AutoRepeatMode = Object.freeze({
+    NONE: 0,  // Plays queue through and terminates
+    TRACK: 1, // Single active song looping indefinitely
+    LIST: 2   // Parent playlist/album looping indefinitely
+});