feat: 單向淨持倉雙向網格（BOTH）與 Bot 創建衝突修正

- 合約 BOTH：槽位 PositionLeg、adjustOrdersBoth、PnL/全平/撤單適配；short_open_window_size
- 現貨 BOTH 啟動降級 LONG；CloseAllPositions BOTH 走 LiquidateAll
- POST /api/bots/create：已停止 Bot 不阻擋新建；運行中衝突不依賴快照內必存在
- 中英 directionHint；版本 3.105.0-rc2

Made-with: Cursor

Author: Ryan Mitchell

CHANGELOG.md

@@ -2,6 +2,21 @@
 
 所有重要的專案更新都會記錄在此檔案中。
 
+## [3.105.0-rc2] - 2026-04-15
+
+### Fixed
+- **`POST /api/bots/create`**：`1b` 對主配置快照中**任意**同腿 Bot 一律 `BotsConflict` 拒絕，導致「僅有已停止 Bot」時仍 **409**；**2** 僅在 `cfg.Bots` 內找到運行中 ID 才擋，運行中 Bot **未寫回快照**時漏擋。改為：**1b** 在運行時可確認該 Bot **未在跑**（或已停用）時不阻擋；**2** 用 **`ListBots` + `GetBot`/最小腿信息** 做 `BotsConflict`。
+- **Web i18n（en-US）**：`botCreate.directionHint` 與中文語義對齊（單向淨持倉 BOTH、現貨降級說明）。
+
+---
+
+## [3.105.0-rc1] - 2026-04-15
+
+### Added
+- **單向淨持倉雙向網格（`direction: BOTH`）**：合約網格下方買開多、上方賣開空，槽位 **`PositionLeg`** 區分多/空腿；平倉仍 **`reduce_only`**。新增可選 **`short_open_window_size`**（未設時繼承 `sell_window_size` / `buy_window_size`）。現貨選 BOTH 時啟動時自動降級為 LONG。`SuperPositionManager` 新增 **`adjustOrdersBoth`**、PnL/全平/撤開倉單等路徑已適配。
+
+---
+
 ## [3.104.0-rc8] - 2026-04-15
 
 ### Fixed

bot_manager.go

@@ -1015,10 +1015,16 @@ func (br *BotRuntime) CloseAllPositions(ctx context.Context, method string, time
 		return fmt.Errorf("unable to get current price")
 	}
 
+	if br.Config.GetDirection() == "BOTH" {
+		// 單向淨持倉雙向網格：按槽位腿別分別平多/平空
+		spm.LiquidateAll()
+		return nil
+	}
+
 	// 确定平仓方向
 	var side string
 	if br.Config.GetDirection() == "SHORT" {
-		side = "BUY"  // 做空平仓是买入
+		side = "BUY" // 做空平仓是买入
 	} else {
 		side = "SELL" // 做多平仓是卖出
 	}

config/bot_config.go

@@ -70,8 +70,9 @@ type GridConfig struct {
 	ProfitSpread   float64 `yaml:"profit_spread,omitempty" json:"profit_spread,omitempty"`
 	OrderQuantity  float64 `yaml:"order_quantity" json:"order_quantity"`
 	MinOrderValue  float64 `yaml:"min_order_value" json:"min_order_value"`
-	BuyWindowSize  int     `yaml:"buy_window_size" json:"buy_window_size"`
-	SellWindowSize int     `yaml:"sell_window_size" json:"sell_window_size"`
+	BuyWindowSize         int `yaml:"buy_window_size" json:"buy_window_size"`
+	SellWindowSize        int `yaml:"sell_window_size" json:"sell_window_size"`
+	ShortOpenWindowSize   int `yaml:"short_open_window_size,omitempty" json:"short_open_window_size,omitempty"`
 
 	Direction    string  `yaml:"direction,omitempty" json:"direction,omitempty"`    // LONG/SHORT/BOTH
 	PriceLow     float64 `yaml:"price_low,omitempty" json:"price_low,omitempty"`
@@ -388,9 +389,10 @@ func ConvertFromBotConfig(bc BotConfig) *BotConfigFile {
 			ProfitSpread:      bc.ProfitSpread,
 			OrderQuantity:     bc.OrderQuantity,
 			MinOrderValue:     bc.MinOrderValue,
-			BuyWindowSize:     bc.BuyWindowSize,
-			SellWindowSize:    bc.SellWindowSize,
-			Direction:         bc.Direction,
+			BuyWindowSize:         bc.BuyWindowSize,
+			SellWindowSize:        bc.SellWindowSize,
+			ShortOpenWindowSize:   bc.ShortOpenWindowSize,
+			Direction:             bc.Direction,
 			PriceLow:          bc.PriceLow,
 			PriceHigh:         bc.PriceHigh,
 			TriggerPrice:      bc.TriggerPrice,
@@ -456,6 +458,7 @@ func ConvertToBotConfig(bcf *BotConfigFile) BotConfig {
 		MinOrderValue:         bcf.Grid.MinOrderValue,
 		BuyWindowSize:         bcf.Grid.BuyWindowSize,
 		SellWindowSize:        bcf.Grid.SellWindowSize,
+		ShortOpenWindowSize:   bcf.Grid.ShortOpenWindowSize,
 		Direction:             bcf.Grid.Direction,
 		PriceLow:              bcf.Grid.PriceLow,
 		PriceHigh:             bcf.Grid.PriceHigh,

config/config.go

@@ -486,6 +486,8 @@ type Config struct {
 		MinOrderValue         float64 `yaml:"min_order_value"` // 最小訂單價值（USDT），預設 6U，小於此值不掛單
 		BuyWindowSize         int     `yaml:"buy_window_size"`
 		SellWindowSize        int     `yaml:"sell_window_size"` // 賣單視窗大小
+		// ShortOpenWindowSize BOTH 模式：向上開空層數；0 時用 SellWindowSize，仍為 0 則用 BuyWindowSize
+		ShortOpenWindowSize   int     `yaml:"short_open_window_size" json:"short_open_window_size"`
 		ReconcileInterval     int     `yaml:"reconcile_interval"`
 		OrderCleanupThreshold int     `yaml:"order_cleanup_threshold"`      // 訂單清理上限（預設 100）
 		CleanupBatchSize      int     `yaml:"cleanup_batch_size"`           // 清理批次大小（預設 10）
@@ -1276,6 +1278,7 @@ type SymbolConfig struct {
 	MinOrderValue         float64            `yaml:"min_order_value" json:"min_order_value"`                   // 最小訂單價值
 	BuyWindowSize         int                `yaml:"buy_window_size" json:"buy_window_size"`                   // 買單窗口（主配置，未配置 profiles 时使用）
 	SellWindowSize        int                `yaml:"sell_window_size" json:"sell_window_size"`                 // 賣單視窗（主配置，未配置 profiles 时使用）
+	ShortOpenWindowSize   int                `yaml:"short_open_window_size,omitempty" json:"short_open_window_size,omitempty"` // BOTH：向上開空層數；0=繼承 sell/buy
 	ReconcileInterval     int                `yaml:"reconcile_interval" json:"reconcile_interval"`             // 對账间隔（秒）
 	OrderCleanupThreshold int                `yaml:"order_cleanup_threshold" json:"order_cleanup_threshold"`   // 訂單清理上限
 	CleanupBatchSize      int                `yaml:"cleanup_batch_size" json:"cleanup_batch_size"`             // 清理批次大小
@@ -1411,6 +1414,7 @@ type BotConfig struct {
 	MinOrderValue         float64               `yaml:"min_order_value" json:"min_order_value"`                               // 最小訂單價值
 	BuyWindowSize         int                   `yaml:"buy_window_size" json:"buy_window_size"`                               // 買單窗口
 	SellWindowSize        int                   `yaml:"sell_window_size" json:"sell_window_size"`                            // 賣單視窗
+	ShortOpenWindowSize   int                   `yaml:"short_open_window_size,omitempty" json:"short_open_window_size,omitempty"` // BOTH：向上開空層數，0 繼承 sell/buy 窗口
 	ReconcileInterval     int                   `yaml:"reconcile_interval" json:"reconcile_interval"`                          // 對賬間隔（秒）
 	OrderCleanupThreshold int                   `yaml:"order_cleanup_threshold" json:"order_cleanup_threshold"`               // 訂單清理上限
 	CleanupBatchSize      int                   `yaml:"cleanup_batch_size" json:"cleanup_batch_size"`                         // 清理批次大小
@@ -1600,6 +1604,7 @@ func SymbolConfigToBotConfig(sc SymbolConfig, exchangeTestnet bool) BotConfig {
 		MinOrderValue:         sc.MinOrderValue,
 		BuyWindowSize:         sc.BuyWindowSize,
 		SellWindowSize:        sc.SellWindowSize,
+		ShortOpenWindowSize:   sc.ShortOpenWindowSize,
 		ReconcileInterval:     sc.ReconcileInterval,
 		OrderCleanupThreshold:  sc.OrderCleanupThreshold,
 		CleanupBatchSize:      sc.CleanupBatchSize,
@@ -1681,6 +1686,7 @@ func BotConfigToSymbolConfig(bc BotConfig) SymbolConfig {
 		MinOrderValue:         bc.MinOrderValue,
 		BuyWindowSize:         bc.BuyWindowSize,
 		SellWindowSize:        bc.SellWindowSize,
+		ShortOpenWindowSize:   bc.ShortOpenWindowSize,
 		ReconcileInterval:     bc.ReconcileInterval,
 		OrderCleanupThreshold: bc.OrderCleanupThreshold,
 		CleanupBatchSize:      bc.CleanupBatchSize,
@@ -2512,6 +2518,7 @@ func (c *Config) Validate() error {
 			MinOrderValue:         c.Trading.MinOrderValue,
 			BuyWindowSize:         c.Trading.BuyWindowSize,
 			SellWindowSize:        c.Trading.SellWindowSize,
+			ShortOpenWindowSize:   c.Trading.ShortOpenWindowSize,
 			Direction:             direction,
 			ReconcileInterval:     c.Trading.ReconcileInterval,
 			OrderCleanupThreshold: c.Trading.OrderCleanupThreshold,
@@ -2543,6 +2550,7 @@ func (c *Config) Validate() error {
 		c.Trading.MinOrderValue = primary.MinOrderValue
 		c.Trading.BuyWindowSize = primary.BuyWindowSize
 		c.Trading.SellWindowSize = primary.SellWindowSize
+		c.Trading.ShortOpenWindowSize = primary.ShortOpenWindowSize
 		c.Trading.ReconcileInterval = primary.ReconcileInterval
 		c.Trading.OrderCleanupThreshold = primary.OrderCleanupThreshold
 		c.Trading.CleanupBatchSize = primary.CleanupBatchSize

main.go

@@ -45,7 +45,7 @@ import (
 )
 
 // Version 应用版本号
-var Version = "3.104.0-rc8"
+var Version = "3.105.0-rc2"
 
 // capitalDataSourceAdapter 资金數據源适配器
 type capitalDataSourceAdapter struct {

position/both_test.go

@@ -0,0 +1,20 @@
+package position
+
+import (
+	"testing"
+)
+
+func TestBothSideIsOpen(t *testing.T) {
+	empty := &InventorySlot{PositionStatus: PositionStatusEmpty, PositionQty: 0, PositionLeg: PositionLegNone}
+	if !bothSideIsOpen("BUY", empty) || !bothSideIsOpen("SELL", empty) {
+		t.Fatal("empty slot should allow both open sides")
+	}
+	long := &InventorySlot{PositionStatus: PositionStatusFilled, PositionQty: 1, PositionLeg: PositionLegLong}
+	if !bothSideIsOpen("BUY", long) || bothSideIsOpen("SELL", long) {
+		t.Fatal("long leg: only BUY is open")
+	}
+	sh := &InventorySlot{PositionStatus: PositionStatusFilled, PositionQty: 1, PositionLeg: PositionLegShort}
+	if !bothSideIsOpen("SELL", sh) || bothSideIsOpen("BUY", sh) {
+		t.Fatal("short leg: only SELL is open")
+	}
+}