The Fleet task board's opened card boards its owner's report-back from a
wire excerpt the route clips at 300 chars, so expansion could never show
the whole text even though DSH itself hands the fold the whole log. The
fleet route now reads a `full: true` body whose prompt/reply skip the
excerpt caps (only a hostile-payload bound stands), and the task board's
unfold asks for it once per session per mount: the excerpt renders
first and swaps in place on landing, the section meta carries
loading/excerpt-only states, and the scan never pays for the full read.