chore: move the go code into a subfolder

apps/api/internal/eventstore/version.go

@@ -0,0 +1,18 @@
+package eventstore
+
+import (
+	"regexp"
+
+	"github.com/zitadel/zitadel/internal/zerrors"
+)
+
+type Version string
+
+var versionRegexp = regexp.MustCompile(`^v[0-9]+(\.[0-9]+){0,2}$`)
+
+func (v Version) Validate() error {
+	if !versionRegexp.MatchString(string(v)) {
+		return zerrors.ThrowPreconditionFailed(nil, "MODEL-luDuS", "version is not semver")
+	}
+	return nil
+}