fix(gui): drop sample count from the recording badge — 0.18.1

The live sample count wasn't useful at a glance. The sidebar badge now shows
just ● Recording + the game, plus a ⚠ GPU-lost line when detected.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/rigdoctor/__init__.py

@@ -1,3 +1,3 @@
 """RigDoctor — modular hardware monitoring & crash diagnostics for Linux gamers."""
 
-__version__ = "0.18.0"
+__version__ = "0.18.1"

src/rigdoctor/gui/main_window.py

@@ -270,12 +270,11 @@ class MainWindow(QMainWindow):
             self._rec_indicator.hide()
             return
         game = status.get("game")
-        samples = status.get("samples", 0)
-        lost = "  ·  GPU-lost" if status.get("gpu_lost") else ""
         lines = [f"<span style='color:{CRIT};'>●</span> <b style='color:{TEXT};'>Recording</b>"]
         if game:
             lines.append(f"<span style='color:{TEXT};'>{html.escape(str(game))}</span>")
-        lines.append(f"<span style='color:{MUTED};'>{samples} samples{lost}</span>")
+        if status.get("gpu_lost"):
+            lines.append(f"<span style='color:{CRIT};'>⚠ GPU-lost</span>")
         self._rec_indicator.setText("<br>".join(lines))
         self._rec_indicator.show()