Ollama

Wiring between Lilith and the shared Agent-Core Ollama client.

Lilith.Ollama.cs

• InitializeOllamaAsync — creates the client with model, system prompt, and optional auto-start of the Ollama service.
• Exposes History, ContextMax, and CurrentContextTokens from the underlying client.
• Subscribes to high context usage warnings for the console UI.