{# THE ANNOUNCEMENT — who posted this booth and why. Defined ONCE and called
   from both index lanes and the booth page header: the kept lane is a separate
   block, and patching only the ephemeral one would leave the durable,
   most-looked-at boards with exactly the defect this closes.

   Four states, and `unannounced` is distinct from `unreadable` on purpose —
   folding "cannot be read" into "never said" hides the one case somebody has to
   go and fix. The classes are the test hooks; the words are for the operator. #}
{% macro provenance(m) -%}
  {% if m is none %}
    <div class="prov prov-none">unannounced</div>
  {% elif m.error %}
    <div class="prov prov-broken" title="{{ m.error }}">unreadable</div>
  {% else %}
    <div class="prov"><span class="prov-who">{{ m.handle }}</span>{% if m.why %} · <span class="prov-why">{{ m.why }}</span>{% endif %}</div>
  {% endif %}
{%- endmacro %}