fix(dashboard): received country pie chart now groups by country_from (寄出国)

app/routers/web.py

@@ -616,12 +616,14 @@ def dashboard(request: Request, user: User = Depends(get_current_user_web), db:
     sent_country_counts: dict[str, int] = {}
     received_country_counts: dict[str, int] = {}
     for c in all_cards:
-        if not c.country_to:
-            continue
         if c.status in ("pending", "sent", "delivered"):
+            if not c.country_to:
+                continue
             sent_country_counts[c.country_to] = sent_country_counts.get(c.country_to, 0) + 1
         elif c.status == "received":
-            received_country_counts[c.country_to] = received_country_counts.get(c.country_to, 0) + 1
+            if not c.country_from:
+                continue
+            received_country_counts[c.country_from] = received_country_counts.get(c.country_from, 0) + 1
     sent_country_stats = sorted(sent_country_counts.items(), key=lambda x: -x[1])
     received_country_stats = sorted(received_country_counts.items(), key=lambda x: -x[1])