refactor(common): 重构 Conn 实体并优化地图进入逻辑

- 优化 Conn 实体的 SendPack 方法，提高代码复用性
- 添加 goja 模块到 go.work 文件
- 重构地图进入逻辑，增加玩家广播和刷怪功能
- 调整 OutInfo 结构中的 Vip 和 Viped 字段类型
- 简化 MonsterRefresh 结构体定义

common/utils/goja/ipow.go

@@ -0,0 +1,98 @@
+package goja
+
+// inspired by https://gist.github.com/orlp/3551590
+
+var overflows = [64]int64{
+	9223372036854775807, 9223372036854775807, 3037000499, 2097151,
+	55108, 6208, 1448, 511,
+	234, 127, 78, 52,
+	38, 28, 22, 18,
+	15, 13, 11, 9,
+	8, 7, 7, 6,
+	6, 5, 5, 5,
+	4, 4, 4, 4,
+	3, 3, 3, 3,
+	3, 3, 3, 3,
+	2, 2, 2, 2,
+	2, 2, 2, 2,
+	2, 2, 2, 2,
+	2, 2, 2, 2,
+	2, 2, 2, 2,
+	2, 2, 2, 2,
+}
+
+var highestBitSet = [63]byte{
+	0, 1, 2, 2, 3, 3, 3, 3,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	5, 5, 5, 5, 5, 5, 5, 5,
+	5, 5, 5, 5, 5, 5, 5, 5,
+	6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6,
+}
+
+func ipow(base, exp int64) (result int64) {
+	if exp >= 63 {
+		if base == 1 {
+			return 1
+		}
+
+		if base == -1 {
+			return 1 - 2*(exp&1)
+		}
+
+		return 0
+	}
+
+	if base > overflows[exp] || -base > overflows[exp] {
+		return 0
+	}
+
+	result = 1
+
+	switch highestBitSet[byte(exp)] {
+	case 6:
+		if exp&1 != 0 {
+			result *= base
+		}
+		exp >>= 1
+		base *= base
+		fallthrough
+	case 5:
+		if exp&1 != 0 {
+			result *= base
+		}
+		exp >>= 1
+		base *= base
+		fallthrough
+	case 4:
+		if exp&1 != 0 {
+			result *= base
+		}
+		exp >>= 1
+		base *= base
+		fallthrough
+	case 3:
+		if exp&1 != 0 {
+			result *= base
+		}
+		exp >>= 1
+		base *= base
+		fallthrough
+	case 2:
+		if exp&1 != 0 {
+			result *= base
+		}
+		exp >>= 1
+		base *= base
+		fallthrough
+	case 1:
+		if exp&1 != 0 {
+			result *= base
+		}
+		fallthrough
+	default:
+		return result
+	}
+}