stream: reconnect the player to live instead of stale buffer

Firefox kept resuming the <audio> element from a stale buffer after a
pause, drifting behind the live point. Load the stream with an anti-cache
query parameter, and on resume-from-pause reconnect to live rather than
replaying the buffered audio.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

stream/index.html

@@ -43,11 +43,30 @@
     <div class="np-label"><span class="dot"></span>en cours</div>
     <div class="title" id="title">—</div>
     <div class="artist" id="artist"></div>
-    <audio id="player" controls autoplay preload="none" src="/radio.mp3"></audio>
+    <audio id="player" controls autoplay preload="none"></audio>
   </main>
   <script>
     const titleEl = document.getElementById("title");
     const artistEl = document.getElementById("artist");
+    const player = document.getElementById("player");
+
+    // Flux « live » : un paramètre anti-cache force le navigateur à se
+    // (re)connecter au direct au lieu de rejouer un buffer périmé.
+    const liveUrl = () => "/radio.mp3?t=" + Date.now();
+    function goLive() {
+      player.src = liveUrl();
+      player.load();
+      player.play().catch(() => {});
+    }
+    goLive();
+
+    // Reprendre après une pause = revenir au direct, pas au point bufferisé.
+    let wasPaused = false;
+    player.addEventListener("pause", () => { wasPaused = true; });
+    player.addEventListener("play", () => {
+      if (wasPaused) { wasPaused = false; goLive(); }
+    });
+
     async function poll() {
       try {
         const r = await fetch("/nowplaying", { cache: "no-store" });