prepush hooks and also made a mongodump on current local database for tests to have data

.gitea/actions/init-db/mongo-dump/tibi_allkids_erfurt/backups.metadata.json

@@ -0,0 +1 @@
+{"options":{},"indexes":[{"v":{"$numberInt":"2"},"key":{"_id":{"$numberInt":"1"}},"name":"_id_","ns":"tibi_allkids_erfurt.backups"},{"v":{"$numberInt":"2"},"key":{"insertTime":{"$numberInt":"1"}},"name":"insertTime_1","ns":"tibi_allkids_erfurt.backups"},{"v":{"$numberInt":"2"},"key":{"updateTime":{"$numberInt":"1"}},"name":"updateTime_1","ns":"tibi_allkids_erfurt.backups"}],"uuid":"4993cf280e844b5b80fe208350713002"}