fix(rpc): fix seer RPC exception handling to default to 500 and preserve rest APIException #249341

Job	Run time
detect what files changed	11s
api docs test	6m 0s
cli test	1m 56s
backend migration tests	9m 2s
select tests	28s
backend typing	5m 4s
monolith-dbs test	7m 11s
check migration	1m 10s
requirements check	0s
api url typescript generation	0s
calculate test shards	10s
backend test (0)	8m 9s
Backend	2s
	39m 23s

Provide feedback