feat(soulver): add ResultFormatter for evaluation results

This commit introduces the ResultFormatter function, which formats various evaluation results based on their type.

src-tauri/SoulverWrapper/Sources/SoulverWrapper/ResultFormatter.swift

@@ -0,0 +1,95 @@
+import SoulverCore
+import Foundation
+
+func formatResult(result: EvaluationResult, customization: EngineCustomization) -> String {
+    switch result {
+    case .unitExpression(let unitExpression):
+        let unit = unitExpression.unit
+        return customization.longFormNameFor(unitIdentifier: unit.identifier)?.capitalized ?? unit.symbol
+    case .unit(let scUnit):
+        return customization.longFormNameFor(unitIdentifier: scUnit.identifier)?.capitalized ?? scUnit.symbol
+    case .customUnit(let customUnit):
+        return customUnit.name
+    case .unitRate:
+        return "Rate"
+    case .unitRange:
+        return "Range"
+
+    case .decimal:
+        return "Number"
+    case .percentage:
+        return "Percentage"
+    case .fraction:
+        return "Fraction"
+    case .scientificNotation:
+        return "Scientific Notation"
+    case .binary:
+        return "Binary"
+    case .octal:
+        return "Octal"
+    case .hex:
+        return "Hexadecimal"
+    case .multiplier:
+        return "Multiplier"
+
+    case .date:
+        return "Date"
+    case .datespan:
+        return "Date Range"
+    case .iso8601:
+        return "Date"
+    case .timestamp:
+        return "Timestamp"
+    case .timespan:
+        return "Duration"
+    case .laptime:
+        return "Lap Time"
+    case .frametime:
+        return "Frame Time"
+
+    case .gpsCoordinates:
+        return "Coordinates"
+    case .degreesMinutesSeconds:
+        return "DMS Angle"
+    case .place, .dynamicPlace:
+        return "Place"
+
+    case .boolean:
+        return "Boolean"
+    case .resolution:
+        return "Resolution"
+    case .salesTax:
+        return "Sales Tax"
+    case .pitch:
+        return "Pitch"
+    case .substance:
+        return "Substance"
+    case .list:
+        return "List"
+    case .variable:
+        return "Variable"
+    case .statisticType:
+        return "Statistic"
+
+    case .addingContext(_, let toResult):
+        return formatResult(result: toResult, customization: customization)
+    case .rawString:
+        return "Text"
+    case .error:
+        return "Error"
+    case .pending:
+        return "Pending"
+    case .failed:
+        return "Failed"
+    case .none:
+        return "Empty"
+    
+    case .decimalRate,
+         .percentageRate,
+         .customType:
+        return String(describing: result.equivalentTokenType)
+    
+    @unknown default:
+        return "Unknown"
+    }
+}

src-tauri/SoulverWrapper/Sources/SoulverWrapper/SoulverWrapper.swift

@@ -77,10 +77,8 @@ public func evaluate(expression: UnsafePointer<CChar>) -> UnsafeMutablePointer<C
          }
          return nil
     }
-    
-    let resultType = String(describing: result.evaluationResult.equivalentTokenType)
 
-    let soulverResult = SoulverResult(value: result.stringValue, type: resultType)
+    let soulverResult = SoulverResult(value: result.stringValue, type: formatResult(result: result.evaluationResult, customization: calculator.customization))
     
     if let jsonData = try? encoder.encode(soulverResult),
        let jsonString = String(data: jsonData, encoding: .utf8) {