- Add solid-devtools Vite plugin with locator (jsx/component locations) and
@solid-devtools/overlay, loaded before render in dev only.
- Treat baseline message fetch as complete for empty transcripts so
ensureSessionLoaded does not refetch on every prefetch/subagent ensure.
- When streaming delivers the first rows while non-idle, sync the batched
message list immediately so the blueprint empty state does not flash.
Made-with: Cursor
