fix(server): notify parents when delegated children need approval#20928

docs(server): explain delegated cancellation tracing boundary

fix(server): withdraw interrupted approval notices and stop re-announcing waited approvals

chore: merge main before approval notification verification

Merge PR #20928 delegated approval notices into fix/issue-22925

fix(server): notify idle parents about delegated approvals

test(server): reproduce issue 22925, idle parent not woken by child command approval

fix(server): refresh delegated approval notices onto main

fix(server): retain approval notices after delegation wait timeout

fix(server): focus delegated approval notice lifecycle

Merge remote-tracking branch 'origin/main' into fix/delegated-approval-notices

fix(server): notify parents when delegated children need approval