init: ops-assistant codebase

internal/core/ecode/codes.go

@@ -0,0 +1,17 @@
+package ecode
+
+const (
+	ErrPermissionDenied = "ERR_PERMISSION_DENIED"
+	ErrConfirmRequired  = "ERR_CONFIRM_REQUIRED"
+	ErrFeatureDisabled  = "ERR_FEATURE_DISABLED"
+	ErrStepFailed       = "ERR_STEP_FAILED"
+	ErrJobCancelled     = "ERR_JOB_CANCELLED"
+	ErrStepTimeout      = "ERR_STEP_TIMEOUT"
+)
+
+func Tag(code, msg string) string {
+	if code == "" {
+		return msg
+	}
+	return "[" + code + "] " + msg
+}