Update app.py

app.py

@@ -209,30 +209,22 @@ def clear_kb(user_id="demo"):
 
 # ---- UI layout (feel free to tweak cosmetics) -----------------------------
 with gr.Blocks() as demo:
-    gr.Markdown(
-        "### Tiny-RAG playground – 1) paste a passage → **Store** · "
-        "2) ask a question → **Answer**"
-    )
+    gr.Markdown("### Tiny-RAG playground …")
 
-    # ---------- passage ingestion ----------
+    # ---- passage ingestion ----
     with gr.Row():
         passage_box = gr.Textbox(lines=6, label="Reference passage")
         user_id_box = gr.Textbox(value="demo", label="User ID")
-
-        # NEW chunking knobs
         chunk_box   = gr.Slider(128, 2048, value=DEFAULT_CHUNK_SIZE,
                                 step=64, label="Chunk size (chars)")
         overlap_box = gr.Slider(0, 1024, value=DEFAULT_CHUNK_OVERLAP,
                                 step=32, label="Chunk overlap")
+        store_btn   = gr.Button("Store passage")
+        clear_btn   = gr.Button("Clear KB")
 
-        # buttons (declare *before* you use them)
-        store_btn = gr.Button("Store passage")
-        clear_btn = gr.Button("Clear KB")
-
-    # status line (defined before we wire handlers)
-    status_box = gr.Markdown()
+    status_box = gr.Markdown()          # declare *before* wiring handlers
 
-    # wire up buttons  -----------------------
+    # ---- wire handlers (each button exactly once) ----
     store_btn.click(
         fn=store_doc,
         inputs=[passage_box, user_id_box, chunk_box, overlap_box],