refactor: set gin mode using env

Dockerfile

@@ -53,4 +53,6 @@ VOLUME ["/data"]
 
 HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 CMD ["/tinyauth/tinyauth", "healthcheck"]
 
+ENV GIN_MODE=release
+
 ENTRYPOINT ["/tinyauth/tinyauth"]

Dockerfile.distroless

@@ -53,4 +53,6 @@ VOLUME ["/data"]
 
 HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 CMD ["/tinyauth/tinyauth", "healthcheck"]
 
+ENV GIN_MODE=release
+
 ENTRYPOINT ["/tinyauth/tinyauth"]

internal/bootstrap/app_bootstrap.go

@@ -172,10 +172,6 @@ func (app *BootstrapApp) Setup() error {
 	}
 
 	// Create engine
-	if config.Version != "development" {
-		gin.SetMode(gin.ReleaseMode)
-	}
-
 	engine := gin.New()
 
 	if len(app.config.TrustedProxies) > 0 {