Revert "fix(xrayeye): defer control-panel width-fixing until after first show"

This reverts commit 10b02ca2f1.

csaxs_bec/bec_widgets/widgets/xray_eye/x_ray_eye.py

@@ -580,15 +580,11 @@ class OMNY_XRayEye(BECWidget, QWidget):
         self._update_calibration_readout()
         self.control_panel_layout.addLayout(form)
 
-        # Fix panel width and allow vertical expansion. The actual width-fixing
-        # is deferred (see _fix_control_panel_width()) rather than computed
-        # here -- sizeHint() called before the widget has ever been shown/laid
-        # out is unreliable (no real screen geometry yet, fonts not fully
-        # resolved -- worse over a remote desktop session), which froze
-        # control_panel at a wrong width until the operator manually resized
-        # the window (forcing Qt to redo layout with correct geometry).
+        # Fix panel width and allow vertical expansion
+        self.control_panel.adjustSize()
+        p_hint = self.control_panel.sizeHint()
+        self.control_panel.setFixedWidth(p_hint.width())
         self.control_panel.setSizePolicy(QSizePolicy.Policy.Fixed, QSizePolicy.Policy.Expanding)
-        QTimer.singleShot(0, self._fix_control_panel_width)
 
         # Core Layout: image (expanding) | control panel (fixed)
         self.core_layout.addWidget(self.image)
@@ -745,14 +741,6 @@ class OMNY_XRayEye(BECWidget, QWidget):
         sep.setLineWidth(1)
         return sep
 
-    def _fix_control_panel_width(self):
-        """Lock the control panel to its natural width. Scheduled via
-        QTimer.singleShot(0, ...) from _init_ui() to run on the next event-loop
-        iteration, after the widget has actually been shown/laid out at least
-        once -- sizeHint() is not reliable before that point."""
-        self.control_panel.adjustSize()
-        self.control_panel.setFixedWidth(self.control_panel.sizeHint().width())
-
     def _init_gui_trigger(self):
         self.dev.omny_xray_gui.read()
         self.dev.fsh.read()