Update app.py

app.py

@@ -24,7 +24,13 @@ except ImportError:
     TTS_ENGINE = "gtts"
 
 # === Groq API Key ===
-GROQ_API_KEY = os.getenv("GROQ_API_KEY", "your_api_key_here")
+# GROQ_API_KEY = os.getenv("GROQ_API_KEY", "your_api_key_here")
+# client = Groq(api_key=GROQ_API_KEY)
+GROQ_API_KEY = os.environ.get("GROQ_API_KEY")  # no fallback value for security
+
+if GROQ_API_KEY is None:
+    raise ValueError("❌ GROQ_API_KEY is not set. Please add it in Hugging Face Spaces 'Settings > Secrets'.")
+
 client = Groq(api_key=GROQ_API_KEY)
 
 # === Error tracking & history storage ===