List every supported broker, the environment variables its credentials go in, and whether it is configured in this server. Values are never shown, only whether each variable is set.

List all connected accounts across every configured broker: id, name, broker, currency, total equity, and cash when reported. Uses a short-lived cache; call refresh for live numbers.

Open positions across all accounts (symbol, quantity — negative means short — and market value in the account currency when the broker prices it). Optionally filter by broker id.

Trade history across all accounts (the most recent window each broker exposes). Optionally filter by broker id and/or symbol; newest first.

Computed performance stats across the whole portfolio: total equity, equity by broker, top positions, and FIFO-matched trade stats (win rate, average win/loss, realized PnL, per-symbol breakdown). Amounts are in each account's native currency — mixed-currency totals are approximate.

Bypass the cache and re-fetch every configured broker right now. Returns per-broker success/failure.