Feature: TCP/UDP connection management with force-disconnect

Add a connection-management feature to YAMA: a toolbar button (after MCP)
opens a dialog listing the managed host's TCP/UDP connections, with
right-click force-disconnect for IPv4 TCP rows.

Client: a new CConnectionsManager enumerates connections via iphlpapi
(GetExtendedTcpTable/GetExtendedUdpTable, IPv4+IPv6) and answers the
refresh and kill commands over a sub-connection.

Server: a new CConnectionsDlg (DialogBase) shows the list with sortable
columns and a right-click menu; the title-bar icon reuses the toolbar's
connection icon (res/connections.ico).

Fix byte order found during review: iphlpapi returns an IPv4 address as a
network-order DWORD and the port's low 16 bits in network order, so
storing them raw made the dialog show reversed IPv4 addresses and ports.
The client now stores addresses as network-order bytes and ports as host
order (ntohs), and reverses the conversion on disconnect.

Co-Authored-By: deepseek-v4-pro

common/commands.h

@@ -358,8 +358,31 @@ enum {
     TOKEN_CLIP_TEXT = 250,
     TOKEN_SERVER_VERIFY = 251,      // 验证服务器，防中间人和假冒的授权服务器
     CMD_FILE_SPEED = 252,           // 文件传输速度下发: [cmd:1][chunkKb:uint16 LE][durationMs:uint16 LE]
+
+    COMMAND_CONNECTION = 253,       // 连接管理（服务端→客户端：查询/刷新连接列表）
+    COMMAND_KILL_CONNECTION = 254,  // 强制断开指定连接（服务端→客户端）
+    TOKEN_CONNECTION_LIST = 255,    // 连接列表响应（客户端→服务端）
 };
 
+// 单条连接记录（客户端 → 服务端）。地址字段存网络字节序（IPv4 展开为前 4 字节、IPv6 为 16 字节），
+// 端口字段存主机字节序（客户端 ntohs 转换）。断连时反向还原：地址拼回网络序 DWORD、端口 htons 转回
+// 网络序，填回 MIB_TCPROW 调 SetTcpEntry（iphlpapi 的地址/端口均为网络序）。
+#pragma pack(push, 1)
+struct ConnectionInfo {
+    uint8_t  proto;           // 1=TCP, 2=UDP                              [1]
+    uint8_t  af;              // 2=AF_INET(IPv4), 23=AF_INET6(IPv6)         [1]
+    uint32_t pid;             // 所属进程 PID                                 [4]
+    uint8_t  localAddr[16];   // 网络字节序；IPv4 存 [0..3]，IPv6 存 [0..15]，其余 0  [16]
+    uint16_t localPort;       // 主机字节序（小端）                            [2]
+    uint8_t  remoteAddr[16];  // 网络字节序，同上                              [16]
+    uint16_t remotePort;      // 主机字节序，同上                              [2]
+    uint32_t state;           // TCP: MIB_TCP_STATE_*；UDP: 0                 [4]
+    char     procName[64];    // 进程映像名 UTF-8，NUL 填充                    [64]
+};                            // 合计 110
+#pragma pack(pop)
+
+static_assert(sizeof(ConnectionInfo) == 110, "ConnectionInfo must be exactly 110 bytes");
+
 #pragma pack(push, 1)
 struct SignatureResp {
     char msg[64];