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WHERE id = 1\", [on ? 1 : 0, Date.now()]);\n}\n\n// ---------- Daily ledger ----------\nfunction today(): string {\n return new Date().toISOString().slice(0, 10); // UTC YYYY-MM-DD\n}\n\nasync function getDaily(): Promise<{ realized_pnl: number; trades: number }> {\n const r = await sqlite.execute(\"SELECT realized_pnl, trades FROM daily WHERE day = ?\", [today()]);\n const row = r.rows[0] as unknown as { realized_pnl: number; trades: number } | undefined;\n if (!row) return { realized_pnl: 0, trades: 0 };\n return { realized_pnl: row.realized_pnl ?? 0, trades: row.trades ?? 0 };\n}\n\nexport async function getDailyStats() {\n return getDaily();\n}\n\nexport async function openPositionCount(): Promise {\n const r = await sqlite.execute(\"SELECT COUNT(*) AS n FROM open_positions\");\n const row = r.rows[0] as unknown as { n: number };\n return row?.n ?? 0;\n}\n\n// ---------- Entry-time protection ----------\nexport interface SafetyResult { ok: boolean; reason?: string; }\n\nexport async function checkEntrySafety(symbol: string): Promise {\n if (await isKillSwitched()) return { ok: false, reason: \"kill switch is ON\" };\n\n if ((await openPositionCount()) >= cfg.MAX_OPEN_TRADES) {\n return { ok: false, reason: `max open trades (${cfg.MAX_OPEN_TRADES}) reached` };\n }\n\n const d = await getDaily();\n if (d.realized_pnl <= -cfg.MAX_DAILY_LOSS_USD) {\n return { ok: false, reason: `daily loss cap hit (${d.realized_pnl.toFixed(2)} USD)` };\n }\n if (d.trades >= cfg.MAX_DAILY_TRADES) {\n return { ok: false, reason: `daily trade cap hit (${d.trades})` };\n }\n\n const pos = await sqlite.execute(\"SELECT 1 FROM open_positions WHERE symbol = ?\", [symbol]);\n if (pos.rows.length > 0) return { ok: false, reason: \"symbol already has an open position\" };\n\n const last = await sqlite.execute(\n \"SELECT ts FROM trade_log WHERE symbol = ? ORDER BY ts DESC LIMIT 1\",\n [symbol],\n );\n const lastTs = (last.rows[0] as unknown as { ts: number } | undefined)?.ts;\n if (lastTs && Date.now() - lastTs < cfg.SYMBOL_COOLDOWN_MS) {\n return { ok: false, reason: \"symbol in cooldown\" };\n }\n\n return { ok: true };\n}\n\nexport async function unrealizedDrawdownUsd(): Promise {\n const r = await sqlite.execute(\"SELECT side, amount, entry, last_mark FROM open_positions\");\n const rows = r.rows as unknown as { side: string; amount: number; entry: number; last_mark: number }[];\n let loss = 0;\n for (const p of rows) {\n const move = p.side === \"buy\" ? p.last_mark - p.entry : p.entry - p.last_mark;\n const pnl = move * p.amount;\n if (pnl < 0) loss += Math.abs(pnl);\n }\n return loss;\n}\n\n// ---------- Recording trades ----------\nexport async function registerOpenPosition(\n symbol: string,\n side: \"buy\" | \"sell\",\n amount: number,\n entry: number,\n lastMark: number,\n stop: number,\n target: number,\n) {\n await sqlite.batch([\n {\n sql: \"INSERT INTO open_positions (symbol, side, amount, entry, last_mark, opened_at) VALUES (?, ?, ?, ?, ?, ?)\",\n args: [symbol, side, amount, entry, lastMark, Date.now()],\n },\n {\n sql: \"INSERT INTO trade_log (symbol, side, amount, entry, stop, target, status, ts) VALUES (?, ?, ?, ?, ?, ?, 'open', ?)\",\n args: [symbol, side, amount, entry, stop, target, Date.now()],\n },\n {\n sql: \"INSERT INTO daily (day, realized_pnl, trades) VALUES (?, 0, 1) ON CONFLICT(day) DO UPDATE SET trades = trades + 1\",\n args: [today()],\n },\n ]);\n}\n\n// ---------- Reconciliation with the exchange ----------\n// Syncs our DB ledger with what Binance actually reports, marking positions\n// that have disappeared as closed and booking their (approximate) realized PnL.\nexport async function reconcile(exchange: any): Promise<{ liveCount: number; realizedClosed: number }> {\n let live: any[] = [];\n try {\n live = await exchange.fetchPositions();\n } catch (err) {\n console.error(\"[reconcile] fetchPositions failed:\", err?.message ?? err);\n return { liveCount: 0, realizedClosed: 0 };\n }\n\n // Correct short handling: use |contracts|, not positive-only (Option C fix).\n const liveMap = new Map();\n for (const p of live) {\n if (Math.abs(parseFloat(p.contracts)) > 0) {\n const mark = parseFloat(p.markPrice ?? p.entryPrice) || 0;\n liveMap.set(p.symbol, mark);\n }\n }\n\n // Update last_mark for live positions.\n for (const [symbol, mark] of liveMap) {\n await sqlite.execute(\"UPDATE open_positions SET last_mark = ? WHERE symbol = ?\", [mark, symbol]);\n }\n\n // Book closures: positions in our DB no longer on the exchange.\n const r = await sqlite.execute(\"SELECT * FROM open_positions\");\n const rows = r.rows as unknown as {\n symbol: string; side: string; amount: number; entry: number; last_mark: number;\n }[];\n let realized = 0;\n for (const p of rows) {\n if (!liveMap.has(p.symbol)) {\n const move = p.side === \"buy\" ? p.last_mark - p.entry : p.entry - p.last_mark;\n const pnl = move * p.amount;\n realized += pnl;\n await sqlite.batch([\n {\n sql: \"UPDATE trade_log SET pnl = ?, status = 'closed' WHERE symbol = ? AND status = 'open'\",\n args: [pnl, p.symbol],\n },\n { sql: \"DELETE FROM open_positions WHERE symbol = ?\", args: [p.symbol] },\n ]);\n }\n }\n if (realized !== 0) {\n await sqlite.execute(\n `INSERT INTO daily (day, realized_pnl, trades) VALUES (?, ?, 0)\n ON CONFLICT(day) DO UPDATE SET realized_pnl = realized_pnl + ?`,\n [today(), realized, realized],\n );\n }\n return { liveCount: liveMap.size, realizedClosed: realized };\n}\n// ---------- Trade mode (paper vs real) ----------\n// The switch lives in the DB so it can be flipped instantly (no redeploy) via\n// the control webhook. Default is 'paper' — safe to test without live money.\nexport type TradeMode = \"paper\" | \"real\";\n\nexport async function getMode(): Promise {\n const r = await sqlite.execute(\"SELECT mode FROM state WHERE id = 1\");\n const row = r.rows[0] as unknown as { mode?: string } | undefined;\n return row?.mode === \"real\" ? \"real\" : \"paper\";\n}\n\nexport async function setMode(mode: TradeMode): Promise {\n await sqlite.execute(\"UPDATE state SET mode = ?, updated_at = ? WHERE id = 1\", [mode, Date.now()]);\n}\n\n// ---------- Paper simulation helpers ----------\nexport interface OpenPositionRow {\n symbol: string;\n side: \"buy\" | \"sell\";\n amount: number;\n entry: number;\n last_mark: number;\n stop: number;\n target: number;\n}\n\nexport async function listOpenPositions(): Promise {\n const r = await sqlite.execute(\n `SELECT o.symbol, o.side, o.amount, o.entry, o.last_mark, t.stop, t.target\n FROM open_positions o\n LEFT JOIN trade_log t ON t.symbol = o.symbol AND t.status = 'open'`,\n );\n return (r.rows as unknown as OpenPositionRow[]).filter((x) => x.stop != null && x.target != null);\n}\n\nexport async function updateMark(symbol: string, mark: number): Promise {\n await sqlite.execute(\"UPDATE open_positions SET last_mark = ? WHERE symbol = ?\", [mark, symbol]);\n}\n\n// Books a paper close at exitPrice. 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