irrecuperable failure when a site dependency is missing

[kapouer]

@pageboard/calendar 0.9.17 is missing but thissite depends on it:

/usr/local/bin/npm install --ignore-scripts --no-optional --no-progress --production --no-audit --save edasarl/thissite#main
juin 15 19:30:51 114857.eda.sarl pageboard[30440]: in /home/eda/.local/share/pageboard/sites/thissite/main

and then:
github hooks won't work,
.local/share/pageboard/sites/thissite must be removed
and pageboard must be restarted :(