Release 5.5.0

Also stops one benign libmpv message being logged as an error: `after
creating texture: OpenGL error INVALID_ENUM` comes from the GL driver, arrives
several times per playback start and per fullscreen toggle, and playback
continues regardless. Hundreds of lines a session buried the errors that
matter -- it is a debug line now.

Verified end to end on the real display with an actual video playing: ten tab
switches and four fullscreen toggles while frames were rendering, position
advancing throughout, the render context intact, no crash, and an empty error
log afterwards.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

ytsage/gui/ytsage_gui_player.py

@@ -281,13 +281,25 @@ class MpvRenderWidget(QOpenGLWidget):
         if value is not None:
             self.mpvBufferingChanged.emit(bool(value))
 
+    #: libmpv reports these at error level, but they are noise from the GL
+    #: driver rather than a failure: playback continues and frames keep
+    #: arriving. They were filling the error log with hundreds of lines per
+    #: session, which buries the errors that do matter.
+    _BENIGN_MPV_ERRORS = (
+        "after creating texture: OpenGL error INVALID_ENUM",
+    )
+
     def _on_mpv_log(self, level: str, prefix: str, text: str) -> None:
+        message = text.strip()
         if level in ("error", "fatal"):
-            logger.error(f"mpv [{prefix}] {text.strip()}")
+            if level == "error" and any(noise in message for noise in self._BENIGN_MPV_ERRORS):
+                logger.debug(f"mpv [{prefix}] {message}")
+                return
+            logger.error(f"mpv [{prefix}] {message}")
             if "ytdl" in prefix or level == "fatal":
-                self.mpvError.emit(text.strip())
+                self.mpvError.emit(message)
         else:
-            logger.debug(f"mpv [{prefix}] {text.strip()}")
+            logger.debug(f"mpv [{prefix}] {message}")
 
     # --------------------------------------------------------------- OpenGL