Self Hosted Azure Container Apps - "Database "zitadel" already exists"

Hey folks, i'm currently trying to deploy both Zitadel and Postgres out to an Azure Container App Environment as part of a PoC. I am able to deploy both containers to the environment using Terraform, however, when the Zitadel container executes the defined start-initstart-init command, I get logs stating that the Zitadel database already exists. I also get logs stating that certain aspects of Zitadels config exist too (roles for example) before the container ultimately hangs. As I am just proving out elements of deployment, I'm deploying both to the same container app environment, both are freshly deployed each time, and i'm using env vars instead of config files. There are no volumes being mounted for the db container, as well as no sidecars or init containers. Initial thinking was maybe two zitadel containers where triggering the same init process on my single postgres instance, but after forcing just a single replica with a single container across both I still see the same issue. I have attached the terraform i'm using (obfuscating anything relating to my azure subscription) for reference, as well as the logs messages i'm seeing for both the postgres container and zitadel container. Fully anticipate I'm doing something daft, so any help is greatly appreciated!

(I'm also able to run the stack locally using compose, its just when I deploy to Azure its giving me errors.)