fix: keep autoplay fallback from saving mute

(cherry picked from commit f373bb9ce7)

js/app/authSessionCoordinator.js

@@ -232,7 +232,18 @@ export function createAuthSessionCoordinator(deps) {
       }
 
       this.applyAuthenticatedUiState();
-      this.commentController?.refreshAuthState?.();
+      const activeModalVideo =
+        typeof this.videoModal?.getCurrentVideo === "function"
+          ? this.videoModal.getCurrentVideo()
+          : this.commentController?.currentVideo || null;
+      if (this.commentController && activeModalVideo) {
+        // Login can reconfigure relay-backed services. Reload the active thread
+        // instead of only enabling its composer so readable comments survive
+        // the transition from guest to authenticated state.
+        this.commentController.load(activeModalVideo);
+      } else {
+        this.commentController?.refreshAuthState?.();
+      }
       this.updateShareNostrAuthState({ reason: "auth-login" });
       if (typeof this.refreshUnreadDmIndicator === "function") {
         void this.refreshUnreadDmIndicator({ reason: "auth-login" });

js/app/playbackCoordinator.js

@@ -237,7 +237,7 @@ export function createPlaybackCoordinator(deps) {
         this.log("Autoplay failed:", err);
         if (!this.modalVideo.muted) {
           this.log("Falling back to muted autoplay.");
-          this.modalVideo.muted = true;
+          this.playbackService.muteForAutoplayFallback(this.modalVideo);
           this.modalVideo.play().catch((err2) => {
             this.log("Muted autoplay also failed:", err2);
           });