Simpler approach: disable the view picker toggle when preview is running,
preventing users from switching views during active runs.
This replaces the previous mounted ref guard approach (commits a0188bd9b5,
b7f1eb9b7b, 8332f0de2b) which added complexity to handle post-unmount
operations. Disabling the toggle is more direct and follows KISS principle.
Changes:
- Add disabled prop to ViewPicker based on isResponding state
- Revert mounted ref guards in use-chat-flow-control.ts
- Revert isMountedRef parameter in use-nodes/edges-interactions-without-sync.ts
- Revert defensive type check in markdown-utils.ts (no longer needed)
When switching from graph view to skill view during an active preview run,
SSE callbacks continue executing and attempt to update ReactFlow node/edge
states. This could cause errors since the component is unmounted.
Add optional `isMountedRef` parameter to `useNodesInteractionsWithoutSync`
and `useEdgesInteractionsWithoutSync` hooks. When provided, operations are
skipped if the component has unmounted, preventing potential errors while
allowing the SSE connection to continue running in the background.
BREAKING CHANGE: `useNodesInteractionsWithoutSync` and
`useEdgesInteractionsWithoutSync` now accept an optional `isMountedRef`
parameter. Existing callers are unaffected as the parameter is optional.
