update chatbot

chatbotbackend/src/main/java/com/example/chatbotbackend/service/ChatService.java

@@ -20,8 +20,8 @@ public ChatService(RestTemplate restTemplate) {
     }
 
     public String getReply(String message) {
-        // gemini-1.5-flash is stable and widely available
-        String model = "gemini-1.5-flash";
+        // gemini-2.5-flash is the currently available stable model
+        String model = "gemini-2.5-flash";
 
         String url = "https://generativelanguage.googleapis.com/v1beta/models/"
                 + model + ":generateContent?key=" + geminiApiKey;

chatbotbackend/src/main/resources/application.properties

@@ -1,7 +1,7 @@
 spring.application.name=chatbotbackend
 server.port=8081
 
-gemini.api.key=${GEMINI_API_KEY:AIzaSyBwHCrncxqEthTD7InYqx076QLezlaxRa8}
+gemini.api.key=${GEMINI_API_KEY:AIzaSyB6KNlC2izJgPLkNeVomwpzhZbDKu3XrrM}
 
 # KAFKA DISABLED
 spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration

test_gemini.js

@@ -0,0 +1,16 @@
+
+async function listModels() {
+  const apiKey = "AIzaSyB6KNlC2izJgPLkNeVomwpzhZbDKu3XrrM";
+  const url = `https://generativelanguage.googleapis.com/v1beta/models?key=${apiKey}`;
+
+  const response = await fetch(url);
+  const data = await response.json();
+  if (data.models) {
+    console.log("Available models:");
+    data.models.filter(m => m.supportedGenerationMethods.includes("generateContent")).forEach(m => console.log(m.name, m.version));
+  } else {
+    console.log(data);
+  }
+}
+
+listModels();