Extended Thinking Support in Conversation Summarizer

Previously the summarizer that compresses long conversations always ran with thinkingConfig: { type: "disabled" }, regardless of what model was active. In this version a new capability check is evaluated at summarization time: if the current main-loop model is listed in the server-side cedar_lagoon capability map, the summarizer now inherits the same thinking configuration used by the main conversation loop. For models that are not in the list, the old behavior (thinking disabled) is unchanged.

In practice this means users running a model that supports extended thinking may notice more coherent or accurate conversation compaction when context windows fill up, since the summarizer can now reason before producing the summary.