set is_default_rule and OD_RULE_POOL_CLIENT_VISIBLE for group_rule

[aidekqz]

config

...
database default {
    group "group1" {
        authentication "md5"
        auth_query "SELECT usename, passwd FROM pg_shadow WHERE usename=$1"
        auth_query_user "postgres"
        auth_query_db "postgres"
        storage "postgres_server"
        pool "transaction"
        group_query "SELECT rolname FROM pg_roles WHERE pg_has_role(rolname, 'group1', 'member')"
        group_query_user "postgres"
        group_query_db "postgres"
    }
}

database default {
    group "group1" {
        authentication "md5"
        auth_query "SELECT usename, passwd FROM pg_shadow WHERE usename=$1"
        auth_query_user "postgres"
        auth_query_db "postgres"
        storage "postgres_server"
        pool "transaction"
        group_query "SELECT rolname FROM pg_roles WHERE pg_has_role(rolname, 'group1', 'member')"
        group_query_user "postgres"
        group_query_db "postgres"
    }
}

database default {
    user default {
        authentication "md5"
        auth_query "SELECT usename, passwd FROM pg_shadow WHERE usename=$1"
        auth_query_user "postgres"
        auth_query_db "postgres"
        storage_password "..."
        storage "postgres_server"
        pool "transaction"
    }
}

expect

yarchirkov@test-instance:~/odyssey_group$ ./binary/odyssey ./config_group.conf
23714 2024-09-17T20:09:02Z info (startup) none Starting Odyssey
23714 2024-09-17T20:09:02Z error (config) none route 'group_group1.group_group1': is redefined

got: odyssey has started and contains duplicates of group_rules

order   auth    db_name     user_name       obsolete        mark    refs    group                   is_default      online_if_group
0       md5     default_db  group_group1    is_obsolete=0   mark=0  refs=0  group=0x557f9bed83d0    db_is_default=0 online=1
0       md5     default_db  group_group1    is_obsolete=0   mark=0  refs=0  group=0x557f9bed9730    db_is_default=0 online=1
0       md5     default_db  default_user    is_obsolete=0   mark=0  refs=0  group=(nil)             db_is_default=1
0       (null)  default_db  default_user    is_obsolete=0   mark=0  refs=1  group=(nil)             db_is_default=1

[aidekqz]

checks failed
fix: #690

[reshke]

rebase on master plz