feat(bundled-binary): add a test

tests/bundled-binary/test.env

@@ -0,0 +1,8 @@
+# Bundled-binary integration test — runs the oxicloud server built with
+# `--features bundled-assets` on a dedicated port so it doesn't collide
+# with the api / webdav / oidc runners in a `just api-test` chain.
+#
+# Only variables the run.sh consumes as bash vars live here (test port,
+# any curl-side seed data). Server-side env is loaded via
+# tests/common/server.env inside the runner.
+base_url=http://localhost:8090