938489f3fd
- Introduced `serviceTierSubagent` and `serviceTierAdvisor` settings to allow independent service tier control for subagents and the advisor model. - Enabled `"inherit"` mode for these settings, allowing subagents and the advisor to track the main session's live effective service tier, including dynamic toggles like `/fast`. - Added a resolution layer to ensure service tier propagation from parent sessions to spawned task agents and evaluators.