Test connectivity to an AI provider. This tool loads provider configuration from a YAML/JSON config file, sends a simple test prompt ("Only return 1") to verify the connection, and returns whether the provider is reachable and responding correctly. Use this tool to verify API credentials and network connectivity before running actual dialogue requests. Supports various AI providers including: - OpenAI and OpenAI-compatible APIs - Anthropic Claude - Google AI Studio / Vertex AI - Azure OpenAI - Mistral AI, Groq, Ollama - Dify, Coze, and more Path to the provider configuration file (YAML or JSON format). The config file should contain a 'providers' or 'targets' array with provider settings. Whether the connectivity test passed (True if provider responded successfully)