Query
CREATE TABLE google_calendar_connections (
id INTEGER PRIMARY KEY AUTOINCREMENT,
chatbot_id INTEGER NOT NULL UNIQUE,
access_token TEXT NOT NULL,
refresh_token TEXT,
token_expiry TEXT,
calendar_id TEXT NOT NULL DEFAULT 'primary',
calendar_name TEXT,
created_at TEXT NOT NULL,
updated_at TEXT,
working_hours_json TEXT,
FOREIGN KEY (chatbot_id) REFERENCES chatbots(id) ON DELETE CASCADE
)