Add full Next.js autotrader app with SQLite persistence and live Tradovate data

- SQLite DB (better-sqlite3) with firms, account_configs, firm_fees, instruments tables
- REST API routes: firms CRUD, account configs CRUD, state, accounts, instruments
- Live Tradovate WebSocket client: login, sync, positions, auto-liq thresholds
- Dashboard (app/page.tsx): per-firm account list with balance, day P&L, days traded,
  target progress, and Dead/Inactive/Flat status based on Tradovate auto-liq floors
- Account detail page: objectives progress, daily P&L chart, consistency tracking
- Per-firm settings page: account configs and instrument fee management
- Dead detection uses trailingMaxDrawdownLimit - trailingMaxDrawdown from
  userAccountAutoLiqs; filters Tradovate sentinel value (999999999 = no limit)
- FIFO P&L engine with commission accounting for daily P&L history
- Removed manual maxLoss fallback in favour of live Tradovate auto-liq data

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/api/state/route.ts

@@ -22,6 +22,7 @@ export async function GET() {
                     realizedPnL: cash.realizedPnL,
                     daysTraded: client.daysTraded[acc.id] ?? 0,
                     hasPosition: !!client.positions[acc.id],
+                    autoLiqThreshold: client.autoLiqThresholds[acc.id] ?? 0,
                 };
             });
             return { firm: f.name, connected: true, accounts };