feat(api): new session service (#5801)

* backup new protoc plugin

* backup

* session

* backup

* initial implementation

* change to specific events

* implement tests

* cleanup

* refactor: use new protoc plugin for api v2

* change package

* simplify code

* cleanup

* cleanup

* fix merge

* start queries

* fix tests

* improve returned values

* add token to projection

* tests

* test db map

* update query

* permission checks

* fix tests and linting

* rework token creation

* i18n

* refactor token check and fix tests

* session to PB test

* request to query tests

* cleanup proto

* test user check

* add comment

* simplify database map type

* Update docs/docs/guides/integrate/access-zitadel-system-api.md

Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

* fix test

* cleanup

* docs

---------

Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

internal/domain/permission.go

@@ -1,5 +1,7 @@
 package domain
 
+import "context"
+
 type Permissions struct {
 	Permissions []string
 }
@@ -21,3 +23,12 @@ func (p *Permissions) appendPermission(ctxID, permission string) {
 	}
 	p.Permissions = append(p.Permissions, permission)
 }
+
+type PermissionCheck func(ctx context.Context, permission, orgID, resourceID string) (err error)
+
+const (
+	PermissionUserWrite     = "user.write"
+	PermissionSessionRead   = "session.read"
+	PermissionSessionWrite  = "session.write"
+	PermissionSessionDelete = "session.delete"
+)