Split off from https://github.com/zed-industries/zed/pull/39175 Requires https://github.com/zed-industries/zed/pull/39219 to be merged first Adds support for `default_model` for profiles: ``` "my-profile": { "name": "Coding Agent", "tools": {}, "enable_all_context_servers": false, "context_servers": {}, "default_model": { "provider": "copilot_chat", "model": "grok-code-fast-1" } } ``` Which will then switch to the default model whenever the profile is activated  Release Notes: - Added `default_model` configuration to agent profile --------- Co-authored-by: Danilo Leal <daniloleal09@gmail.com>