Auto: focas-f1b — parts count + cycle time

Closes #258

src/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/FwlibNative.cs

@@ -88,6 +88,17 @@ internal static class FwlibNative
     [DllImport(Library, EntryPoint = "cnc_statinfo", ExactSpelling = true)]
     public static extern short StatInfo(ushort handle, ref ODBST buffer);
 
+    // ---- Timers ----
+
+    /// <summary>
+    ///     <c>cnc_rdtimer</c> — read CNC running timers. <paramref name="type"/>: 0 = power-on
+    ///     time (ms), 1 = operating time (ms), 2 = cycle time (ms), 3 = cutting time (ms).
+    ///     Only the cycle-time variant is consumed today (issue #258); the call is generic
+    ///     so the surface can grow without another P/Invoke.
+    /// </summary>
+    [DllImport(Library, EntryPoint = "cnc_rdtimer", ExactSpelling = true)]
+    public static extern short RdTimer(ushort handle, short type, ref IODBTMR buffer);
+
     // ---- Structs ----
 
     /// <summary>
@@ -129,6 +140,17 @@ internal static class FwlibNative
         public short DecVal;    // decimal-point count
     }
 
+    /// <summary>
+    ///     IODBTMR — running-timer read buffer per <c>fwlib32.h</c>. Minute portion in
+    ///     <see cref="Minute"/>; sub-minute remainder in milliseconds in <see cref="Msec"/>.
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct IODBTMR
+    {
+        public int Minute;
+        public int Msec;
+    }
+
     /// <summary>ODBST — CNC status info. Machine state, alarm flags, automatic / edit mode.</summary>
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     public struct ODBST