Align Play with table deep links

src/RolemasterDb.App/Frontend/AppState/TableContextCellResolver.cs

@@ -0,0 +1,32 @@
+using RolemasterDb.App.Features;
+
+namespace RolemasterDb.App.Frontend.AppState;
+
+public static class TableContextCellResolver
+{
+    public static CriticalTableCellDetail? FindCell(CriticalTableDetail detail, TableContextSnapshot? context)
+    {
+        ArgumentNullException.ThrowIfNull(detail);
+
+        if (context is null)
+        {
+            return null;
+        }
+
+        if (context.ResultId is { } resultId)
+        {
+            var matchedByResultId = detail.Cells.FirstOrDefault(cell => cell.ResultId == resultId);
+            if (matchedByResultId is not null)
+            {
+                return matchedByResultId;
+            }
+        }
+
+        if (string.IsNullOrWhiteSpace(context.RollBand) && string.IsNullOrWhiteSpace(context.ColumnKey) && string.IsNullOrWhiteSpace(context.GroupKey))
+        {
+            return null;
+        }
+
+        return detail.Cells.FirstOrDefault(cell => string.Equals(cell.RollBand, context.RollBand, StringComparison.Ordinal) && string.Equals(cell.ColumnKey, context.ColumnKey, StringComparison.Ordinal) && string.Equals(cell.GroupKey ?? string.Empty, context.GroupKey ?? string.Empty, StringComparison.Ordinal));
+    }
+}