Update app.py

app.py

@@ -1,4 +1,4 @@
-# app.py  —  BizIntel AI Ultra  (Gemini 1.5 Pro, date‑column selector)
+# app.py  —  BizIntel AI Ultra  (Gemini 1.5 Pro, selectable date column)
 
 import os
 import tempfile
@@ -8,7 +8,7 @@ import google.generativeai as genai
 
 from tools.csv_parser import parse_csv_tool
 from tools.plot_generator import plot_sales_tool
-from tools.forecaster import forecast_tool   # accepts date_col argument
+from tools.forecaster import forecast_tool   # must accept date_col
 
 # ──────────────────────────────────────────────────────────────
 # 1.  GEMINI CONFIG  (1.5‑Pro, temperature 0.7)
@@ -19,7 +19,8 @@ gemini = genai.GenerativeModel(
     generation_config={
         "temperature": 0.7,
         "top_p": 0.9,
-        "response_mime_type": "text/markdown",
+        # Allowed types: text/plain, application/json, etc.
+        "response_mime_type": "text/plain",
     },
 )
 
@@ -56,7 +57,7 @@ with st.spinner("🔍 Parsing CSV…"):
     summary_text = parse_csv_tool(csv_path)
 
 with st.spinner("📈 Generating sales trend chart…"):
-    _ = plot_sales_tool(csv_path)   # saves sales_plot.png
+    _ = plot_sales_tool(csv_path)   # generates sales_plot.png
 
 with st.spinner("🔮 Forecasting future metrics…"):
     forecast_text = forecast_tool(csv_path, date_col=date_col)  # uses chosen column