Wire carries stick-up as negative; Invert Y opts back to physical

The old Invert joystick Y box (checked by default) is now the wire's
native convention: full up = -80 in AnalogReply with the flag off.
Checking the renamed Invert Y sends the physical direction (up = +80).

Control strip cleanup: test-mode buttons and the firmware selector are
gone (the device still reports 4.2), Keyboard/Gamepad/Invert Y share
one line, the help text drops the bindings sentence, and the wire log
gets the reclaimed height.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/VRio.Core/Device/VRioDevice.cs

@@ -58,9 +58,11 @@ public sealed class VRioDevice
     public byte VersionMinor { get; set; } = 2;
 
     /// <summary>
-    /// Negate joystick Y in AnalogReply. Only the host sees the flip — local
-    /// state (<see cref="GetAxis"/>, the panel's dot and readout) keeps the
-    /// physical stick direction.
+    /// The wire natively carries stick-up as negative (full up = −80 in
+    /// AnalogReply); set this to send the physical direction (up = positive)
+    /// instead. Only the host sees the difference — local state
+    /// (<see cref="GetAxis"/>, the panel's dot) keeps the physical stick
+    /// direction either way.
     /// </summary>
     public bool InvertJoystickY { get; set; }
 
@@ -110,7 +112,8 @@ public sealed class VRioDevice
 
     /// <summary>
     /// Axis value as the next AnalogReply will carry it — same as
-    /// <see cref="GetAxis"/> except for the <see cref="InvertJoystickY"/> flip.
+    /// <see cref="GetAxis"/> except joystick Y follows the wire convention
+    /// (see <see cref="InvertJoystickY"/>).
     /// </summary>
     public short GetWireAxis(RioAxis axis)
     {
@@ -119,8 +122,8 @@ public sealed class VRioDevice
     }
 
     private short WireY(short y) => InvertJoystickY
-        ? (short)Math.Min(AnalogCodec.Max, -y) // clamp: -Min (8192) is one past the 14-bit Max
-        : y;
+        ? y
+        : (short)Math.Min(AnalogCodec.Max, -y); // clamp: -Min (8192) is one past the 14-bit Max
 
     /// <summary>
     /// Move an axis. Values are clamped to the 14-bit signed range the wire