The auto-spawned agent on initiative creation was using discuss mode
(Q&A) when it should use refine mode (expand content). Now:
- Description seeds root page as tiptap content (split on double newlines)
- Spawns refine agent with the populated page in inputContext
- getActiveRefineAgent broadened to also surface discuss agents (for
CLI-spawned discuss agents)
- RefineAgentPanel shows mode-appropriate label for discuss vs refine
9e7c246280