Update app.py

app.py

@@ -177,7 +177,16 @@ st.caption("Hybrid Rule-based + AI (OpenRouter) • KP Digital Roadmap 2030 —
 
 with st.sidebar:
     st.header("⚙️ Settings")
+
+    api_key = default_key()                      # loaded silently — never rendered
+    if api_key:
+        st.success("🔑 API key loaded securely")
+    else:
+        api_key = st.text_input("OpenRouter API Key", type="password",
+                                placeholder="Paste key (not saved)")
+
     cfg = {
+        "api_key":   api_key,
         "model":     st.text_input("Model", value=DEFAULT_MODEL),
         "use_ai":    st.toggle("Use AI", value=True),
         "always_ai": st.toggle("Always use AI (else only when rules unsure)", value=False),
@@ -187,7 +196,7 @@ with st.sidebar:
     }
     if cfg["use_ai"] and not cfg["api_key"]:
         st.warning("No API key — running rule-based only.")
-
+        
 files = st.file_uploader("Upload documents", type=["txt", "pdf", "docx"], accept_multiple_files=True)
 
 if files and st.button("🚀 Classify", type="primary"):