Expose max prompt size to the model API (#47)

* add sonnet 4 and 4.5 in model raw initializer

* text model : expose max prompt size

* swift-format

Author: sebsto

Sources/BedrockModel.swift

@@ -26,6 +26,14 @@ public struct BedrockModel: Hashable, Sendable, Equatable, RawRepresentable {
     public let name: String
     public let modality: any Modality
 
+    public var maxPromptSize: Int? {
+        guard self.hasTextModality(),
+            let textModality = try? self.getTextModality()
+        else { return nil }
+
+        return textModality.getParameters().prompt.maxSize
+    }
+
     /// Creates a new BedrockModel instance
     /// - Parameters:
     ///   - id: The unique identifier for the model
@@ -66,6 +74,12 @@ public struct BedrockModel: Hashable, Sendable, Equatable, RawRepresentable {
             self = BedrockModel.claudev3_5_sonnet_v2
         case BedrockModel.claudev3_7_sonnet.id:
             self = BedrockModel.claudev3_7_sonnet
+        case BedrockModel.claude_sonnet_v4.id:
+            self = BedrockModel.claude_sonnet_v4
+        case BedrockModel.claude_opus_v4.id:
+            self = BedrockModel.claude_opus_v4
+        case BedrockModel.claude_sonnet_v4_5.id:
+            self = BedrockModel.claude_sonnet_v4_5
         // titan
         case BedrockModel.titan_text_g1_premier.id:
             self = BedrockModel.titan_text_g1_premier