feat: implement plant health check functionality with AI analysis, credit management, and UI integration

utils/translations.ts

@@ -145,6 +145,7 @@ export const translations = {
     temp: "Temperatur",
     
     // Care Values (UI Helper)
+    unknown: "Unbekannt",
     waterModerate: "Mäßig",
     waterLittle: "Wenig",
     waterEveryXDays: "Alle {0} Tage",
@@ -367,6 +368,7 @@ registerToSave: "Sign up to save",
     light: "Light",
     temp: "Temperature",
     
+    unknown: "Unknown",
     waterModerate: "Moderate",
     waterLittle: "Little",
     waterEveryXDays: "Every {0} days",
@@ -588,6 +590,7 @@ registerToSave: "Regístrate para guardar",
     light: "Luz",
     temp: "Temperatura",
     
+    unknown: "Desconocido",
     waterModerate: "Moderado",
     waterLittle: "Poco",
     waterEveryXDays: "Cada {0} días",