Change /new behavior to match Pi:
- Create a completely new session file instead of just resetting the leaf
- Previous session is closed and saved (accessible via /resume)
- New session starts with 0 entries, 0 messages - clean slate
- Update help text to reflect new behavior
Key fix: SwitchTreeSession now updates the kit SDK's tree session
reference so messages are persisted to the correct file.
Files changed:
- internal/app/app.go: update kit SDK session reference
- internal/ui/model.go: create new session file on /new
- internal/ui/model_test.go: add SwitchTreeSession stub
Ed Zynda