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

server/lib/openai.js

@@ -107,10 +107,16 @@ const normalizeIdentifyResult = (raw, language) => {
   const waterIntervalRaw = getNumber(careInfoRaw.waterIntervalDays);
   const light = getString(careInfoRaw.light);
   const temp = getString(careInfoRaw.temp);
-  if (waterIntervalRaw == null || !light || !temp) {
+  if (waterIntervalRaw == null) {
     return null;
   }
 
+  const LIGHT_DEFAULTS = { de: 'Helles indirektes Licht', es: 'Luz indirecta brillante', en: 'Bright indirect light' };
+  const TEMP_DEFAULTS = { de: '15–25 °C', es: '15–25 °C', en: '59–77 °F (15–25 °C)' };
+  const lang = language || 'en';
+  const resolvedLight = (light && light !== 'Unknown') ? light : (LIGHT_DEFAULTS[lang] || LIGHT_DEFAULTS.en);
+  const resolvedTemp = (temp && temp !== 'Unknown') ? temp : (TEMP_DEFAULTS[lang] || TEMP_DEFAULTS.en);
+
   const fallbackDescription = language === 'de'
     ? `${name} wurde per KI erkannt. Pflegehinweise sind unten aufgefuehrt.`
     : language === 'es'
@@ -124,8 +130,8 @@ const normalizeIdentifyResult = (raw, language) => {
     description: description || fallbackDescription,
     careInfo: {
       waterIntervalDays: Math.round(clamp(waterIntervalRaw, 1, 45)),
-      light,
-      temp,
+      light: resolvedLight,
+      temp: resolvedTemp,
     },
   };
 };
@@ -216,6 +222,10 @@ const buildIdentifyPrompt = (language, mode) => {
     'Rules:',
     nameLanguageInstruction,
     `- "description" and "careInfo.light" must be written in ${getLanguageLabel(language)}.`,
+    `- "careInfo.light": short light requirement in ${getLanguageLabel(language)} (e.g. "bright indirect light", "full sun", "partial shade"). Must always be a real value, never "Unknown".`,
+    language === 'en'
+      ? '- "careInfo.temp": temperature range in both Celsius and Fahrenheit (e.g. "18–24 °C (64–75 °F)"). Must always be a real plant-specific value, never "Unknown".'
+      : '- "careInfo.temp": temperature range in Celsius (e.g. "18–24 °C"). Must always be a real plant-specific value, never "Unknown".',
     '- "botanicalName" must use accepted Latin scientific naming and must not be invented or misspelled.',
     '- If species is uncertain, prefer genus-level naming (for example: "Calathea sp.").',
     '- "confidence" must be between 0 and 1.',
@@ -356,7 +366,7 @@ const identifyPlant = async ({ imageUri, language, mode = 'primary', plan = 'fre
         role: 'user',
         content: [
           { type: 'text', text: buildIdentifyPrompt(language, mode) },
-          { type: 'image_url', image_url: { url: imageUri } },
+          { type: 'image_url', image_url: { url: imageUri, detail: 'low' } },
         ],
       },
     ],
@@ -416,7 +426,7 @@ const analyzePlantHealth = async ({ imageUri, language, plantContext }) => {
         role: 'user',
         content: [
           { type: 'text', text: buildHealthPrompt(language, plantContext) },
-          { type: 'image_url', image_url: { url: imageUri } },
+          { type: 'image_url', image_url: { url: imageUri, detail: 'low' } },
         ],
       },
     ],