feat(dotnet): migrate core formulas, deploy tools, and blazor admin web app to .NET 10

src/dotnet/QuantEngine.Core/Domain/KrxTickNormalizer.cs

@@ -0,0 +1,49 @@
+using System;
+
+namespace QuantEngine.Core.Domain
+{
+    public static class KrxTickNormalizer
+    {
+        private static readonly (double Limit, int Tick)[] KrxTickTable = new (double, int)[]
+        {
+            (2000, 1),
+            (5000, 5),
+            (20000, 10),
+            (50000, 50),
+            (200000, 100),
+            (500000, 500),
+            (double.PositiveInfinity, 1000)
+        };
+
+        public static int GetTickUnit(double price)
+        {
+            foreach (var (limit, tick) in KrxTickTable)
+            {
+                if (price < limit)
+                {
+                    return tick;
+                }
+            }
+            return 1000;
+        }
+
+        public static double NormalizeTick(double price)
+        {
+            if (price <= 0) return 0;
+            int tick = GetTickUnit(price);
+            
+            // Round to nearest tick unit
+            double remainder = price % tick;
+            if (remainder == 0) return price;
+
+            if (remainder >= tick / 2.0)
+            {
+                return price + (tick - remainder);
+            }
+            else
+            {
+                return price - remainder;
+            }
+        }
+    }
+}