The confirm dialog spelled out both sides even when one was "+0 / −0", which read
as engineer shorthand. Build the message from one sentence per side that actually
changes and add a short "stays unchanged" line for the untouched side; the zero
side is no longer shown as a bare +0/−0 to decode. Assembled in the component
from granular i18n clauses (add/remove per side, reorder, rename) with count
plurals; HU+EN. Replaces the single pushPlanMerge template.