Replace the go-micro store with a NATS JetStream key-value bucket, created via
reva's cache.NewNatsKeyValue, so the web service no longer depends on go-micro
stores. The store methods now take a context, threaded through the config.json
render path and the management handlers. Tests use a mockery mock of
jetstream.KeyValue.
Add a logger to the announcement service and log server-side errors before
returning a 5xx, tagged with the request id so they correlate with the
request log line from the logging middleware.
Distinguish the http.MaxBytesReader limit from a malformed body: an
oversized payload now returns 413 Request Entity Too Large instead of a
generic 400.
The permission gates reading the full announcement state (including
disabled ones) as well as writing it, so name it ReadWrite to match the
other management permissions (Accounts.ReadWrite, Settings.ReadWrite, ...)
and use the READWRITE operation.
Dominik Schmidt