Generates a steady stream of random trades so the risk engine has data to process without a real market feed.

On a timer (default every second), submits a random trade for a random portfolio id and symbol drawn from the configured pools, through RiskEngine.TradeIngestion.submit/1 — exactly as an external feed would.

config :risk_engine, RiskEngine.Simulator,
  tick_interval: 1_000,
  portfolio_ids: ["acct_1", "acct_2", "acct_3"],
  symbols: ["AAPL", "TSLA", "GOOG", "MSFT"]

Intended for local development and demos, not production trade data.