5.0.0

Fixed

• generateWithUsage and generate recursed forever on every cloud client. Both were
  unreachable at run time on AnthropicClient, GeminiClient, OpenAIClient, DeepSeekClient,
  GroqClient, MistralClient, OpenRouterClient and XAIClient — a call never returned, and
  the process grew until it was killed. The requirement in llm-client 3.x took
  systemPrompt: SystemPrompt? while every implementation here declared systemPrompt: String?,
  so none of them witnessed it. The convenience method beside the requirement — same signature,
  optional arguments defaulted — witnessed it instead and called straight back into itself. It
  compiled, and no test called either method, so nothing ever said so. llm-client 4.0.0 gives the
  requirement a distinct signature, which turned this into a compile error and is how it was
  found. Confirmed against 3.13.0 in a throwaway package: 85 GB of memory before the kernel
  killed it, with neither implementation ever entered.

Removed

• BREAKING — the methods that implement llm-client's protocol requirements now take an options
  value instead of a list of optional arguments, following llm-client 4.0.0. Gone from the
  public API:

  Type	Removed
  AnthropicClient, GeminiClient	generateWithUsage(input:model:systemPrompt:temperature:maxTokens:), generateWithUsage(messages:model:systemPrompt:temperature:maxTokens:), chat(messages:model:systemPrompt:temperature:maxTokens:)
  OpenAIClient, DeepSeekClient, GroqClient, MistralClient, OpenRouterClient, XAIClient	the same three, inherited from OpenAICompatibleClientProtocol
  GeminiClient, OpenAIClient	generateImage(input:model:size:quality:format:n:), generateImages(input:model:size:quality:format:n:), startVideoGeneration(input:model:duration:aspectRatio:resolution:)
  OpenAIClient	generateSpeech(input:model:voice:speed:format:)

  Each is replaced by a form taking GenerationOptions, ChatOptions, ImageGenerationOptions,
  VideoGenerationOptions or SpeechGenerationOptions.

  Most call sites need no change. llm-client still supplies the same argument lists as
  convenience methods with defaults, so client.generateImage(input:, model:, size: .square1024)
  and client.chat(messages:, model:, systemPrompt: "…") still compile and now reach a real
  implementation. What breaks is passing a String variable as generateWithUsage's system
  prompt: the surviving overload takes SystemPrompt, which a string literal converts to but a
  String does not — wrap it as SystemPrompt(stringLiteral: text) or pass the literal directly.
  Code that conformed its own type to these protocols by forwarding to a cloud client must adopt
  the options-taking signatures too, or it will no longer conform.

Changed

• Raised the floors to llm-client 4.0.0, swift-structured-data 3.0.0 and swift-api-client 3.0.3,
  and added a direct dependency on swift-http-transport 1.1.2. api-client 3.0.3 stopped
  re-exporting HTTPTransport, and this package names HTTPTransport, HTTPStreamingTransport,
  URLSessionTransport and SSEEvent internally, so it now depends on and imports that module
  itself. None of those types appear in this package's public API, so nothing is asked of
  consumers beyond resolving the new floors.