Add support for GLM-4.7 model via Ollama

[ipoweb]

adds support for the GLM-4.7 reasoning model from Z.ai, available via Ollama.

Model Details
Model ID: z-ai/glm-4.7
Type: Reasoning model
Provider: Z.ai via Ollama
Documentation: https://docs.z.ai/guides/llm/glm-4.7
Ollama Endpoint: https://ollama.com/library/[glm-4.7](https://ollama.com/library/glm-4.7)