add freehost reason to TAP description
add freehost reason to TAP description

This is somehow against the 'keep TAP descriptions
stable' principle but helps in the web gui to
immediately see the reason in the 'Issue Summary'
which is worth it in contrast to the rare case
of searching via queryAPI for such testrun quits.

tapper/Tapper-MCP,csdb/Tapper-MCP,tapper/Tapper-MCP,csdb/Tapper-MCP