feat: add SYSTEM_OWNER role (#6765)

* define roles and permissions

* support system user memberships

* don't limit system users

* cleanup permissions

* restrict memberships to aggregates

* default to SYSTEM_OWNER

* update unit tests

* test: system user token test (#6778)

* update unit tests

* refactor: make authz testable

* move session constants

* cleanup

* comment

* comment

* decode member type string to enum (#6780)

* decode member type string to enum

* handle all membership types

* decode enums where necessary

* decode member type in steps config

* update system api docs

* add technical advisory

* tweak docs a bit

* comment in comment

* lint

* extract token from Bearer header prefix

* review changes

* fix tests

* fix: add fix for activityhandler

* add isSystemUser

* remove IsSystemUser from activity info

* fix: add fix for activityhandler

---------

Co-authored-by: Stefan Benz <stefan@caos.ch>

internal/api/grpc/server/middleware/quota_interceptor.go

@@ -28,7 +28,9 @@ func QuotaExhaustedInterceptor(svc *logstore.Service[*record.AccessLog], ignoreS
 
 		// The auth interceptor will ensure that only authorized or public requests are allowed.
 		// So if there's no authorization context, we don't need to check for limitation
-		if authz.GetCtxData(ctx).IsZero() {
+		// Also, we don't limit calls with system user tokens
+		ctxData := authz.GetCtxData(ctx)
+		if ctxData.IsZero() || ctxData.SystemMemberships != nil {
 			return handler(ctx, req)
 		}