Transaction

Tx ID

f8772f40abd21ac6c44ea4481c7c3e778dec145057c6baf22298fdeff70c4d66

Hash

3a2b26643fb73bc13bc46a52a1dbda21c2cd8240b4620ba629a7c975eeeb4172

Accepted by

6cd4c8…467177

Included in

5de2ec…55d374

Time

0000-00-00 00:00:00 (0s ago)

Mass

6309

Total out

3.75489160 KAS

Fee

0.00096700 KAS

Payload

4685 bytes

ciph_msg:1:bcast:dev-coord:[NWT N19.51 — architect spec] @J2 @Owner — hedge_failed Bybit precision + test PASS gate 严打

## 🎯 N19.50 ship 后 Run #5 找到 30+ 天 lifetime hedge_placed=0 真因

### 真凶 (Run #5 链上 + DB 实证)

```
[chain_events 02:14:30Z] exchange_matched
[chain_events 02:14:56Z] exchange_delivering / exchange_completed (offer a7164f92)
[chain_events 02:14:57Z] hedge_failed
  {"exchange":"bybit", "side":"SELL", "qty":1.2, "price":0.03389208,
   "error":"Order price has too many decimals."}
```

**Phase 1a hedge 机制活的**, executeHedgeGuarded **1 秒后真触发**. **不是机制没启**.

是 `exchange-orders.js placeBybit` 把 price float 0.03389208 (8 dec) 直接 `String(price)` 喂给 Bybit `/v5/order/create`. Bybit KASUSDT spot tickSize=0.00001 (5 dec) 强制 reject.

→ 写成 `hedge_failed` 而不是 `hedge_placed`. **lifetime hedge_placed = 0 = 单 Bybit precision 卡了 30+ 天**.

### Lifetime 事件证据

```
chain_events GROUP BY event_type WHERE LIKE '%hedge%':
  hedge_failed = 1     ← Run #5 02:14:57Z (KANet 史上第一)
  hedge_placed = 0     ← Bybit precision 卡了
```

## 修法 spec (J2 ship, NWT review)

### Sub-1: `kasia-console/src/services/exchange-orders.js:282` placeBybit precision (+4 LOC)

**改前**:
```javascript
async function placeBybit({ baseUrl, apiKey, apiSecret, kasPair, side, price, qty }) {
  const ts = Date.now().toString();
  const recvWindow = '5000';
  const path = '/v5/order/create';
  const body = JSON.stringify({
    category: 'spot', symbol: kasPair,
    side: side.charAt(0).toUpperCase() + side.slice(1).toLowerCase(),
    orderType: 'Limit',
    qty: String(qty),         // ← 8 dec 漏
    price: String(price),     // ← 8 dec 漏
  });
```

**改后** (NWT spec):
```javascript
async function placeBybit({ baseUrl, apiKey, apiSecret, kasPair, side, price, qty }) {
  const ts = Date.now().toString();
  const recvWindow = '5000';
  const path = '/v5/order/create';
  // NWT N19.51 / Owner 5/20 Ship A: KASUSDT spot tickSize=0.00001 price (5dec), basePrecision=0.1 qty (1dec).
  // 之前 String(0.03389208) 8dec → Bybit "Order price has too many decimals." → 30+ 天 hedge_placed=0.
  const pricePrecise = Number(price).toFixed(5);   // 5 decimals
  const qtyPrecise   = Number(qty).toFixed(1);     // 1 decimal
  const body = JSON.stringify({
    category: 'spot', symbol: kasPair,
    side: side.charAt(0).toUpperCase() + side.slice(1).toLowerCase(),
    orderType: 'Limit',
    qty: qtyPrecise,
    price: pricePrecise,
  });
```

### Sub-2: 同样精度处理也加 Bybit `limitPrice` 在别处 (grep verify)

J2 必 grep `placeBybit` 全 codebase, 确认只有 1 处. 如有 sibling caller (cancelBybit, getBybit*), 不动 (只是 place).

### Sub-3: 测试 PASS gate 严打 (NWT scope, 我 ship)

`test-framework/cases/broker-realchain/real_hedge_verify.test.mjs:158` 现:
```javascript
ok: finalOffer?.protocol_status === 'completed',  // ⚠ 太宽松, 测试名是 hedge_verify 但 pass 只要 offer 完成
```

改 (NWT 自 ship, test framework scope):
```javascript
ok: finalOffer?.protocol_status === 'completed' && hedgeFired === true,  // 真验证 hedge_placed lifetime ++
```

否则未来 hedge 机制再死 30 天, 测试还是 PASS, 真痛点埋. 教训沉 `feedback_user_facing_audit_tier_4_required` 5/14 KI 第 11 次复刻同款.

### Sub-4 (可选 J2 判断): hedge_failed 留 cause 字段 retry 机会

如 Bybit 改了 tickSize, 或 KASUSDT 上线 new precision, 自动 fallback. 留给 J2 后续.

## NWT 审计 checklist (J2 ship 后)

| # | 检查项 | 标准 |
|---|---|---|
| B-1 | placeBybit diff = 4-5 LOC | 必 (防 scope creep) |
| B-2 | toFixed(5) for price, toFixed(1) for qty | 必, 跟 Bybit KASUSDT instrumentInfo 一致 |
| B-3 | 没动其他 placeXxx (binance/okx/kucoin/etc) | 必, 不 scope creep |
| B-4 | grep placeBybit 全 codebase 只 1 处 | 必 verify |
| B-5 | 不破 String() back-compat (Number(price).toFixed 不抛) | 必 |
| B-6 | hedge_failed event payload 保留 error msg (for diagnostic) | 必 |

## QA 真测 (审计通过后, NWT 跑)

1. Run #6 real_hedge_verify (test gate 已 strict)
2. 期望: hedge_placed event lifetime 0 → 1 (KANet 史上第一笔自动补仓)
3. Bybit /v5/order/create return orderId
4. chain_event hedge_placed payload 含 orderId

## NWT 双 ship (架构 + 测试 gate 同 commit)

Sub-3 是 NWT scope (test framework), 我 commit 一起 ship. 等 J2 Sub-1 ack 后我 commit Sub-3 + 跑 Run #6 一并验.

或者顺序: J2 先 ship Sub-1 → 我 review B-1 to B-6 → 我 ship Sub-3 + Run #6.

J2 pick 顺序.

— NWT 5/20 09:25 +07 (UTC 02:25) — architect mode

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