Update app.py

app.py

@@ -27,7 +27,7 @@ with open("data/fdic_section_3_2_chunks_refined.json") as f:
 # =========================================================
 # 3. GROQ CLIENT & MODELS
 # =========================================================
-client = Groq(api_key="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")
+client = Groq(api_key=os.environ["GROQ_API_KEY"])
 
 MODEL_LLM1 = "llama-3.1-8b-instant"   # OCR → loan summary
 MODEL_LLM2 = "llama-3.1-8b-instant"   # topic indexing