Limit tradable products to four varieties for accounts at or below 100k.

Co-authored-by: Cursor <cursoragent@cursor.com>

app.py

@@ -789,7 +789,13 @@ def logout():
 @login_required
 def api_symbol_search():
     q = request.args.get("q", "")
-    return jsonify(search_symbols(q))
+    conn = get_db()
+    try:
+        from trading_context import get_account_capital
+        capital = get_account_capital(conn, get_setting)
+    finally:
+        conn.close()
+    return jsonify(search_symbols(q, capital=capital))
 
 
 @app.route("/api/symbols/mains")