实现账户冻结：验证→更新状态

def solve():
    from pyodide.http import open_url
    offices_csv = open_url(____).read()
    staff_csv = open_url(____).read()
    savings_products_csv = open_url(____).read()
    clients_csv = open_url(____).read()
    savings_accounts_csv = open_url(____).read()
    savings_account_transactions_csv = open_url(____).read()
    gl_accounts_csv = open_url(____).read()
    charges_csv = open_url(____).read()
    savings_account_charges_csv = open_url(____).read()
    import sqlite3, pandas as pd
    from io import StringIO
    conn = sqlite3.connect(____)
    pd.read_csv(StringIO(____)).to_sql(____)
    def freeze(____):
        acc = conn.execute('____', (____)).fetchone()
        if not acc or acc[____]=='____': return {'____':'____'}
        conn.execute("____", (____))
        conn.commit()
        return {'____': acc[____], '____': acc[____], '____': acc[____], '____': '____', '____': reason}
    print(freeze(____))
    conn.close()