05/31 Phase 7: fixed fetch fx rate

app/routes/dashboard.py

@@ -5,7 +5,7 @@ from app.extensions import db
 from app.models.account import Account
 from app.models.transaction import Transaction
 from app.models.category import Category
-from app.services.fx_service import get_today_rate, get_rate_history
+from app.services.fx_service import get_today_rate, get_rate_history, force_refresh
 from app.services.ai_service import get_latest_daily_insight
 from app.services.account_service import get_total_assets, get_total_liabilities
 from datetime import date, datetime, timedelta
@@ -161,3 +161,18 @@ def fx_history_api():
         'dates': [r.date.strftime('%b %d') for r in history],
         'rates': [float(r.usd_to_vnd) for r in history],
     })
+
+
+@dashboard_bp.route('/api/fx-refresh', methods=['POST'])
+@login_required
+def fx_refresh():
+    """Force-refresh today's USD/VND rate."""
+    result = force_refresh()
+    if result:
+        return jsonify({
+            'rate': result['rate'],
+            'date': result['date'].strftime('%b %d, %Y'),
+            'source': result['source'],
+            'is_stale': result['is_stale'],
+        })
+    return jsonify({'error': 'Could not fetch rate'}), 503