Add support for claude sonnet and opus v4

[sebsto]

Issue #, if available:
#15

Description of changes:

• add claude_sonnet_v4 and claude_opus_v4 to AnthropicBedrockModels.swift

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[Copilot]

Pull Request Overview

Adds support for Claude Sonnet v4 and Opus v4 models and updates parameter configurations for an existing ClaudeV3_7Sonnet model.

• Introduce new typealiases and static definitions for claude_sonnet_v4 and claude_opus_v4
• Update maxTokens limit and add parameters (topP, topK, stopSequences, maxPromptSize) and features for ClaudeV3_7Sonnet
• Include reference link to Anthropic model overview

Comments suppressed due to low confidence (5)

swift-bedrock-library/Sources/BedrockService/Models/Anthropic/AnthropicBedrockModels.swift:27

• [nitpick] Swift typealiases should follow PascalCase without underscores; consider renaming to ClaudeSonnetV4 for consistency.

typealias Claude_Sonnet_v4 = AnthropicText

swift-bedrock-library/Sources/BedrockService/Models/Anthropic/AnthropicBedrockModels.swift:28

• [nitpick] Swift typealiases should follow PascalCase without underscores; consider renaming to ClaudeOpusV4 for consistency.

typealias Claude_Opus_v4 = AnthropicText

swift-bedrock-library/Sources/BedrockService/Models/Anthropic/AnthropicBedrockModels.swift:186

• [nitpick] Swift property names typically use lowerCamelCase without underscores; consider renaming to claudeSonnetV4.

public static let claude_sonnet_v4: BedrockModel = BedrockModel(

swift-bedrock-library/Sources/BedrockService/Models/Anthropic/AnthropicBedrockModels.swift:202

• [nitpick] Swift property names typically use lowerCamelCase without underscores; consider renaming to claudeOpusV4.

public static let claude_opus_v4: BedrockModel = BedrockModel(

swift-bedrock-library/Sources/BedrockService/Models/Anthropic/AnthropicBedrockModels.swift:193

• These lines for claude_opus_v4 are missing the '+' prefix in the diff, suggesting they weren't added correctly and could cause compile errors. Ensure diff formatting and inclusion are correct.

topP: Parameter(.topP, minValue: 0, maxValue: 1, defaultValue: 0.999),

[Copilot]

The claude_opus_v4 block omits maxPromptSize, features, and maxReasoningTokens parameters present in the claude_sonnet_v4 definition; add them to maintain consistent behavior.