fix(sync): route question/permission replies by the request's own session directory

Answering a question tool (or a permission prompt) could leave the session
permanently stuck on "asking question": resolveDirectoryForBlockingRequest
returned the containing child-store key, which only proves containment.
For a worktree session (or any session whose record is grouped under a
parent project store), the reply was addressed to the parent directory's
OpenCode instance, where the pending request does not exist - the server
answered QuestionNotFoundError, the local request was removed, and the
trailing question-tool part stayed running with no recovery until Stop.

Resolve the directory from the request's own session record (server-
confirmed ownership: session.directory, then project.worktree) before
falling back to the containing store key. When a reply/reject comes back
not-found, also enqueue the settled-running-tool tail materialization so
the tool part converges to the server's actual state instead of leaving
the UI stuck.

Refs OPE-236

packages/ui/src/sync/sync-context.tsx

@@ -2260,6 +2260,12 @@ export function SyncProvider(props: {
       props.sdk,
       childStores,
       () => opencodeClient.getDirectory() || props.directory,
+      (directory, sessionID, messageID) => {
+        enqueueSessionMaterialization(directory, sessionID, childStores, {
+          reason: "settled-running-tool",
+          messageID,
+        })
+      },
     )
     return () => {
       if (getImperativeSessionMessageLoader() === messageLoader) {