fix(address-space): numeric array writes convert (checked) to the node element type; array-to-scalar refusal only for Modbus/S7 (#610 review R6)

MAJOR-1: R4's exact element-type match refused ScadaBridge's CLR-list
writes (its element types are only Boolean/Int32/Float/Double/String/
DateTime) to every Int16/UInt16/Byte/UInt32/Int64/UInt64 array node and a
Double list to a Float array. EvaluateEquipmentWriteStructure now converts
a numeric array of another numeric element type element-wise, CHECKED, into
the node's element type and hands the converted array back through
OnEquipmentTagWrite's ref value, so the node stores and the driver receives
the node's own type. Any out-of-range, fractional-to-integer, NaN/Inf-to-
integer or Float-overflowing element refuses the whole write BadTypeMismatch
(nothing dispatched) - so the UInt32 -> Int32 bit reinterpretation stays
closed. Non-numeric mismatches stay refused. The wrong 'no client relies on
a looser rule' comment is corrected.

MINOR-1: the array-value-to-scalar-node refusal broke writes back to
browse-committed array tags (committed scalar, isArray never set) on
pass-through drivers. It now applies only when the owning driver's scalar
encoder cannot take an array (DriverArrayWriteSupport.
RefusesArrayValueOnScalarTag: Modbus, S7), carried RawTagPlan.
ScalarRefusesArrayValue / UnsReferenceVariable.BackingScalarRefusesArrayValue
-> EnsureVariable(refuseArrayOnScalar) -> a per-node set in the node
manager. OpcUaClient/Galaxy/others keep pre-#610 dispatch. Not on the
classifier whitelist (driver-type edit rebuilds); a mirror whose flag
changes is recreated, not updated in place.

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy/Runtime/MxValueEncoder.cs

@@ -54,8 +54,8 @@ internal static class MxValueEncoder
             default:
                 throw new ArgumentException(
                     $"Cannot encode value of type {value.GetType()} as MxValue. Supported: " +
-                    "bool, int / long (and their unsigned variants), float, double, string, DateTime, " +
-                    "and their 1-D array variants.",
+                    "bool, int / long (and, as scalars only, their unsigned variants), float, double, string, " +
+                    "DateTime, and the 1-D arrays of the signed / non-integer types (no uint[] / ulong[]).",
                     nameof(value));
         }
     }