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>

lib/clients.ts

@@ -1,5 +1,7 @@
 import { TradovateClient } from './tradovate-class';
-import { getFirms } from './db';
+import { getFirms, upsertFirmFee } from './db';
+
+const SYMBOLS = ['NQ', 'MNQ', 'ES', 'MES', 'YM', 'MYM', 'RTY', 'M2K', 'GC', 'MGC', 'SI', 'CL', 'MCL', 'NG', 'ZB', 'ZN', 'ZF', '6E', '6J', '6B'];
 
 // Use global to persist the client pool across HMR reloads in dev mode
 const g = global as typeof globalThis & {
@@ -16,8 +18,22 @@ function ensureMap(): Map<number, TradovateClient> {
 
 export function initClient(id: number, username: string, password: string, firmName: string): TradovateClient {
     const map = ensureMap();
+    let feesInitialized = false;
     const client = new TradovateClient(username, password, async () => {
         console.log(`[${firmName}] sync complete — ${client.accountList.length} account(s)`);
+        if (!feesInitialized) {
+            feesInitialized = true;
+            try {
+                const fees = await client.fetchInstrumentFees(SYMBOLS);
+                for (const [symbol, fee] of Object.entries(fees)) {
+                    upsertFirmFee(id, symbol, fee, parseFloat((fee * 2).toFixed(4)));
+                }
+                const count = Object.keys(fees).length;
+                if (count > 0) console.log(`[${firmName}] Auto-fetched fees for ${count} symbol(s)`);
+            } catch (err) {
+                console.error(`[${firmName}] Failed to auto-fetch fees`, err);
+            }
+        }
     });
     map.set(id, client);
     return client;