fix: sanitize NaN/Inf values before JSON serialization in payloads

replace() + fillna(0) on all three fe_df payloads before sending to API.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: zakiscoding

app.py

@@ -77,7 +77,7 @@ def load_data():
     else:
         st.write(f"📅 Running predictions for **{year}-{month:02d}** | Region: **{region}**")
 
-        payload = fe_df.loc[idx].to_dict(orient="records")
+        payload = fe_df.loc[idx].replace([float("inf"), float("-inf")], 0).fillna(0).to_dict(orient="records")
 
         try:
             resp = requests.post(API_URL, json=payload, timeout=60)
@@ -115,7 +115,7 @@ def load_data():
             if region == "All":
                 yearly_data = disp_df[disp_df["year"] == year].copy()
                 idx_all = yearly_data.index
-                payload_all = fe_df.loc[idx_all].to_dict(orient="records")
+                payload_all = fe_df.loc[idx_all].replace([float("inf"), float("-inf")], 0).fillna(0).to_dict(orient="records")
 
                 resp_all = requests.post(API_URL, json=payload_all, timeout=60)
                 resp_all.raise_for_status()
@@ -126,7 +126,7 @@ def load_data():
             else:
                 yearly_data = disp_df[(disp_df["year"] == year) & (disp_df["region"] == region)].copy()
                 idx_region = yearly_data.index
-                payload_region = fe_df.loc[idx_region].to_dict(orient="records")
+                payload_region = fe_df.loc[idx_region].replace([float("inf"), float("-inf")], 0).fillna(0).to_dict(orient="records")
 
                 resp_region = requests.post(API_URL, json=payload_region, timeout=60)
                 resp_region.raise_for_status()