The OpenCode server cascade-deletes all child sessions when a parent
is removed. The client was sending individual DELETE requests for each
descendant, which returned 404 after the parent's cascade removed them.
The 404 triggered rollback in deleteSessionAction, restoring already-
deleted sessions back into the global store.
Changes:
- executeDeleteSession: only send the root session delete; the server
cascade handles descendants.
- deleteSession / deleteSessionInDirectory: treat 404 in catch as
success, acting as a safety net for remaining paths (e.g. sidebar
bulk action bar when parent and child are both selected).
When switching to a session with long context (especially in Electron
desktop when changing servers), the chat viewport could render blank
until the user scrolled. Two interacting issues caused this:
1. historyVirtualRows memo never recomputed after the first render
because historyVirtualizer (from useVirtualizer's useState) is a
stable reference. Frozen range meant items rendered at the top
while paddingBottom filled the visible viewport after scrolling.
2. pendingInitialRestoreRef replay ran in useEffect (after paint),
showing a frame at scrollTop:0 with the stale virtualizer range.
Fixed by: adding a virtualVersion counter driven by useVirtualizer's
onChange to bust the memo; switching the replay to useLayoutEffect
so scroll position is set before the browser paints.
Replace useDirectoryStore.currentDirectory with useEffectiveDirectory() in
both TaskToolSummary and ToolPartContent to align the directory key used for
ContextPanel tab storage/lookup. Previously ToolPart used the global project
root while ContextPanel resolved session/worktree-scoped directories via
useEffectiveDirectory(), causing a key mismatch that left the iframe blank
when opening sub-tasks from chat messages.
Tom