[jasperblues]

Shows what the embabel-agent 2.0 capability-traits stack (embabel/embabel-agent#2185) changes for Guide. Nothing has to change. One optional cleanup is included.

Do not merge. The PR builds against 1.5.4-capability-traits-SNAPSHOT, a local install of the stack, so CI cannot resolve it. When 2.0 is released, change the version to 2.0 and merge.

Commit 1: version bump only. Guide compiles, and all 183 tests pass, with no code changes. Guide calls models through Ai, PromptRunner and withLlmService, and the stack leaves those unchanged.

Commit 2 (optional): chat models through the named platforms.

• Before: UserModelFactory built each provider's chat model itself, with Mistral's and DeepSeek's base URLs written into Guide.
• Now: it asks the platform for the user's provider: OpenAiPlatform, AnthropicPlatform, MistralAiPlatform or DeepSeekPlatform. The endpoints live in embabel-agent.

val (platform, providerName) = when (provider) {
    LlmProvider.OPENAI -> OpenAiPlatform() to OpenAiModels.PROVIDER
    LlmProvider.ANTHROPIC -> AnthropicPlatform() to AnthropicModels.PROVIDER
    LlmProvider.MISTRAL -> MistralAiPlatform() to MistralAiModels.PROVIDER
    LlmProvider.DEEPSEEK -> DeepSeekPlatform() to DeepSeekModels.PROVIDER
}
return requireNotNull(platform.model(ProviderCredential(providerName, apiKey), LlmService.KIND, model)) { ... }

Guide's cache and key validation are unchanged. All 183 tests pass, including UserModelFactoryTest, which builds a model for each provider.

A live check with an OpenAI key also passed: validateKey accepted the key, and the chat model built through OpenAiPlatform answered a prompt. The check is not committed.