328 more routes used a JSON body as a dict straight from
request.get_json(), so a body of null, [] or a bare string crashed them
into a 500. Bare reads become json_object(); the
'get_json(silent=True) or {}' reads of action routes become
json_object(optional=True), which still treats a missing body as {}.
Routes that take arrays or pass the body through untouched are left
alone. The full backend suite shows no new failures.
Also carries three files' bare section citations (apps, backups,
notifications) and the extended citation guard, which needed them.
Eleven routes passed request.get_json() straight to data.get(...), so
a body of null, [] or a bare string crashed them into a 500. They now
read the body through json_object(), which answers a typed 400.
Juan Denis