Fix Math/MathF translation and SGN function handling

Update JetMathTranslator to distinguish between Math and MathF methods, using correct runtime methods and constant types for square root translations. Also, fix SQL function name check from "SIGN" to "SGN" for accurate SQL generation.

Author: ChrisJollyAU

src/EFCore.Jet/Query/ExpressionTranslators/Internal/JetMathTranslator.cs

@@ -115,7 +115,7 @@ public class JetMathTranslator(ISqlExpressionFactory sqlExpressionFactory) : IMe
                     nullable: true,
                     argumentsPropagateNullability: newArguments.Select(_ => true).ToArray(),
                     method.ReturnType,
-                    sqlFunctionName == "SIGN" ? null : typeMapping);
+                    sqlFunctionName == "SGN" ? null : typeMapping);
             }
 
             if (_supportedMethodTranslationsIndirect.Contains(method))
@@ -132,7 +132,9 @@ public class JetMathTranslator(ISqlExpressionFactory sqlExpressionFactory) : IMe
                                     _sqlExpressionFactory.Negate(arguments[0]),
                                     Translate(
                                         null,
-                                        typeof(Math).GetMethod(nameof(Math.Sqrt))!,
+                                        method.DeclaringType == typeof(MathF)
+                                            ? typeof(MathF).GetRuntimeMethod(nameof(MathF.Sqrt), [typeof(float)])!
+                                            : typeof(Math).GetRuntimeMethod(nameof(Math.Sqrt), [typeof(double)])!,
                                         [
                                             _sqlExpressionFactory.Add(
                                                 _sqlExpressionFactory.Negate(
@@ -141,7 +143,7 @@ public class JetMathTranslator(ISqlExpressionFactory sqlExpressionFactory) : IMe
                                                         arguments[0]
                                                     )
                                                 ),
-                                                _sqlExpressionFactory.Constant(1d)
+                                                _sqlExpressionFactory.Constant(method.DeclaringType == typeof(MathF) ? 1f : 1d)
                                             )
                                         ],
                                         logger
@@ -160,7 +162,9 @@ public class JetMathTranslator(ISqlExpressionFactory sqlExpressionFactory) : IMe
                                 arguments[0],
                                 Translate(
                                     null,
-                                    typeof(Math).GetMethod(nameof(Math.Sqrt)) !,
+                                    method.DeclaringType == typeof(MathF)
+                                        ? typeof(MathF).GetRuntimeMethod(nameof(MathF.Sqrt), [typeof(float)])!
+                                        : typeof(Math).GetRuntimeMethod(nameof(Math.Sqrt), [typeof(double)])!,
                                     [
                                         _sqlExpressionFactory.Add(
                                             _sqlExpressionFactory.Negate(
@@ -169,7 +173,7 @@ public class JetMathTranslator(ISqlExpressionFactory sqlExpressionFactory) : IMe
                                                     arguments[0]
                                                 )
                                             ),
-                                            _sqlExpressionFactory.Constant(1d)
+                                            _sqlExpressionFactory.Constant(method.DeclaringType == typeof(MathF) ? 1f : 1d)
                                         )
                                     ],
                                     logger