Back-port v5 fix 04a828264 to v6. canReadConfig now accepts
ScopeAgentReport (legacy host-agent:report) in addition to the config/
manage/settings scopes; resolveConfigAgent already restricts a
report-only token to the host it is bound to, so it can only read its
own config. Without this, a v5 agent upgraded to a v6 server while still
holding a report-only token gets HTTP 403 on config fetch and breaks.
Retargets TestHandleConfigMissingConfigScope to monitoring:read and adds
TestHandleConfigAllowsBoundAgentReportScope as a #1254 regression guard.
rcourtman
d9da9b18f2