small fix, don't worry about it

app/backend/internal/api/feature_response.go

@@ -0,0 +1,25 @@
+package api
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func respondFeatureUnavailable(c *gin.Context, feature string, details string) {
+	c.JSON(http.StatusNotImplemented, gin.H{
+		"error":   "Feature not implemented",
+		"code":    "FEATURE_NOT_IMPLEMENTED",
+		"feature": feature,
+		"details": details,
+	})
+}
+
+func respondDependencyUnavailable(c *gin.Context, dependency string, details string) {
+	c.JSON(http.StatusServiceUnavailable, gin.H{
+		"error":      "Dependency unavailable",
+		"code":       "DEPENDENCY_UNAVAILABLE",
+		"dependency": dependency,
+		"details":    details,
+	})
+}