PCAT_SOURCE_DB_URL and EMEX_SOURCE_DB_URL are declared as
`z.string().url().optional()` (and `.optional()` resp). docker-compose's
`${VAR:-}` substitution ALWAYS sets the env var, even to "", so when the
Coolify env is unset the container receives PCAT_SOURCE_DB_URL="".
zod's `.optional()` only accepts undefined, so `.url()` then rejects ""
and the api crashes on boot with "Invalid url".
This is exactly what took prod down on commit 939e4dc — the dev→main
merge brought in the catalog-source env schema without the empty-string
preprocess. Hotfixed by setting the env to a dummy URL via Coolify DB;
this patch makes the schema resilient permanently so future env edits
that clear the value won't recrash boot.
Apply a preprocess that maps empty/whitespace strings to undefined
before the URL check fires. Mirror the same treatment on EMEX so it can
also be unset without surprises.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Semih Yesilyurt
d6602a3e51