feat(GUI): 交戰高度分層改「跟著敵機高度 ±offset」浮動分層

修實飛重編隊後待機組 B 掉高度的 bug（原 _alt_for 寫死 formation_alt
沒讀敵機高度）。高度來源改用 local_pose z（相對 home，非 AMSL gps alt），
新增 rel_alt_provider / _enemy_base_alt（None 沿用上次有效值），
A=base+offset、B=base−offset；EngagementPanel 加「高度分層 ±」欄位即時生效。
SITL 驗證通過。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/GUI/communication.py

@@ -794,20 +794,19 @@ class DroneMonitor(Node):
         self.serial_receivers = []
         
         # ================================================================================
-        # 【新增】初始化 CommandLongClient 字典（為每個 drone 維護獨立的 client）
+        # 共用 command / position client（各一個節點，靠 request 的 target_sysid 路由）
         # ================================================================================
-        # 改為為每個 drone 創建獨立的 client，避免多機並行時的競態條件
-        self.command_long_clients = {}  # {drone_id: CommandLongClient}
-        self.client_lock = Lock()  # 保護 clients 字典的訪問
-        self.client_counter = 0  # 用於生成唯一的 client 節點名稱
-        self.executor = None  # 將在 gui.py 中設置，用於添加新的 clients
-        # ================================================================================
-
-        # ================================================================================
-        # PositionTargetGlobalIntClient 字典（per-drone，用於 Offboard goto）
-        # ================================================================================
-        self.position_target_clients = {}  # {drone_id: PositionTargetGlobalIntClient}
-        self.pos_client_counter = 0
+        # 兩個 client 都只打到單一 service（send_command_long / pos_global_int），
+        # 沒有任何 per-drone 狀態，故不需要 per-drone 節點。改成「啟動時各預建一個、
+        # 執行期只重用」，避免：
+        #   (1) 切 mode / 首次 goto 時於執行期新建 ROS2 node = 新 DDS participant，
+        #       其 discovery handshake 撞到壞掉的外來 participant → FastRTPS bad_alloc → OOM。
+        #   (2) 從 asyncio/Qt 執行緒對「正在被 _ros_spin_thread spin 的 executor」
+        #       跨執行緒 add_node → wait set 損毀 → CPU 空轉 100%。
+        self.command_long_client = None      # CommandLongClient（共用）
+        self.position_target_client = None   # PositionTargetGlobalIntClient（共用）
+        self.client_lock = Lock()            # 保護共用 client 的建立
+        self.executor = None                 # 將在 gui.py 中設置，用於 add_node
         # ================================================================================
         
         # 主题检测定时器
@@ -876,57 +875,69 @@ class DroneMonitor(Node):
             
             return self.socket_id_mapping[original_socket_id]
        
-    def get_or_create_client(self, drone_id):
-        """為每個 drone 獲取或創建獨立的 CommandLongClient，避免競態條件"""
+    def init_shared_command_clients(self):
+        """啟動時預建共用的 command / position client（各一個節點）。
+
+        必須在 _ros_spin_thread 啟動「之前」於主執行緒呼叫：此時 executor 已建立
+        但尚未被 spin，add_node 不會與 spin_once 跨執行緒競爭。之後執行期送指令
+        一律重用這兩個節點，不再於飛行中新建 DDS participant。"""
         with self.client_lock:
-            if drone_id not in self.command_long_clients:
+            if self.command_long_client is None and CommandLongClient is not None:
                 try:
-                    # 生成唯一的 client 節點名稱
-                    self.client_counter += 1
-                    unique_name = f"cmd_long_client_{drone_id}_{self.client_counter}"
-                    client = CommandLongClient(node_name=unique_name)
-                    self.command_long_clients[drone_id] = client
-                    _log("INFO", f"已為 {drone_id} 建立 CommandLongClient (node={unique_name})")
-                    
-                    # 將新 client 添加到主執行器（這樣它的回調才能被處理）
+                    self.command_long_client = CommandLongClient(node_name="cmd_long_client_shared")
                     if self.executor:
-                        self.executor.add_node(client)
-                        _log("INFO", f"已將 {drone_id} 的 CommandLongClient 加入主執行器")
-                    
-                except TypeError:
-                    # 舊版 CommandLongClient 不支持 node_name 參數，使用預設
-                    client = CommandLongClient()
-                    self.command_long_clients[drone_id] = client
-                    _log("INFO", f"已為 {drone_id} 建立 CommandLongClient (使用預設名稱)")
-                    
-                    if self.executor:
-                        self.executor.add_node(client)
-                        _log("INFO", f"已將 {drone_id} 的 CommandLongClient 加入主執行器")
-                        
+                        self.executor.add_node(self.command_long_client)
+                    _log("INFO", "已預建共用 CommandLongClient (node=cmd_long_client_shared)")
                 except Exception as e:
-                    _log("WARN", f"無法為 {drone_id} 建立 CommandLongClient: {e}")
-                    return None
-            return self.command_long_clients[drone_id]
+                    _log("WARN", f"預建 CommandLongClient 失敗: {e}")
+            if self.position_target_client is None and PositionTargetGlobalIntClient is not None:
+                try:
+                    self.position_target_client = PositionTargetGlobalIntClient(node_name="pos_target_client_shared")
+                    if self.executor:
+                        self.executor.add_node(self.position_target_client)
+                    _log("INFO", "已預建共用 PositionTargetGlobalIntClient (node=pos_target_client_shared)")
+                except Exception as e:
+                    _log("WARN", f"預建 PositionTargetGlobalIntClient 失敗: {e}")
 
-    def get_or_create_position_client(self, drone_id):
-        """為每個 drone 獲取或創建獨立的 PositionTargetGlobalIntClient。"""
+    def get_or_create_client(self, drone_id=None):
+        """回傳共用的 CommandLongClient（單一節點，靠 request 的 target_sysid 路由）。
+
+        正常情況已於啟動時由 init_shared_command_clients() 預建；此處僅保留一次性
+        lazy fallback（例如 init 尚未被呼叫），不會在執行期重複新建 participant。
+        drone_id 參數保留以相容既有呼叫端，實際不影響路由（路由在 request 內）。"""
+        if self.command_long_client is not None:
+            return self.command_long_client
+        with self.client_lock:
+            if self.command_long_client is None and CommandLongClient is not None:
+                try:
+                    self.command_long_client = CommandLongClient(node_name="cmd_long_client_shared")
+                    if self.executor:
+                        self.executor.add_node(self.command_long_client)
+                    _log("INFO", "已建立共用 CommandLongClient (lazy fallback)")
+                except Exception as e:
+                    _log("WARN", f"無法建立共用 CommandLongClient: {e}")
+                    return None
+            return self.command_long_client
+
+    def get_or_create_position_client(self, drone_id=None):
+        """回傳共用的 PositionTargetGlobalIntClient（單一節點，靠 target_sysid 路由）。
+
+        同 get_or_create_client：正常已於啟動預建，此處僅一次性 lazy fallback。"""
+        if self.position_target_client is not None:
+            return self.position_target_client
         if PositionTargetGlobalIntClient is None:
             return None
         with self.client_lock:
-            if drone_id not in self.position_target_clients:
+            if self.position_target_client is None:
                 try:
-                    self.pos_client_counter += 1
-                    unique_name = f"pos_target_client_{drone_id}_{self.pos_client_counter}"
-                    client = PositionTargetGlobalIntClient(node_name=unique_name)
-                    self.position_target_clients[drone_id] = client
-                    _log("INFO", f"已為 {drone_id} 建立 PositionTargetGlobalIntClient (node={unique_name})")
+                    self.position_target_client = PositionTargetGlobalIntClient(node_name="pos_target_client_shared")
                     if self.executor:
-                        self.executor.add_node(client)
-                        _log("INFO", f"已將 {drone_id} 的 PositionTargetGlobalIntClient 加入主執行器")
+                        self.executor.add_node(self.position_target_client)
+                    _log("INFO", "已建立共用 PositionTargetGlobalIntClient (lazy fallback)")
                 except Exception as e:
-                    _log("WARN", f"無法為 {drone_id} 建立 PositionTargetGlobalIntClient: {e}")
+                    _log("WARN", f"無法建立共用 PositionTargetGlobalIntClient: {e}")
                     return None
-            return self.position_target_clients[drone_id]
+            return self.position_target_client
 
     def scan_topics(self):
         topics = self.get_topic_names_and_types()
@@ -1152,7 +1163,8 @@ class DroneMonitor(Node):
             
             _log("INFO", f"[SET_MODE] {drone_id} -> {mode_name} (custom_mode={custom_mode})")
             
-            # 獲取或創建該 drone 專用的 client（避免多機並行時的競態條件）
+            # 取得共用 command_long client（OOM 修復後已非 per-drone，靠 request 的
+            # target_sysid 路由；drone_id 僅用於一次性 lazy fallback，無 per-drone 狀態）
             client = self.get_or_create_client(drone_id)
             if not client:
                 _log("ERROR", "[SET_MODE] CommandLongClient 無法初始化")
@@ -1178,6 +1190,50 @@ class DroneMonitor(Node):
             traceback.print_exc()
             return False
 
+    async def set_speed(self, drone_id, speed_mps, speed_type=1):
+        """對指定無人機下 DO_CHANGE_SPEED(178) 設定/限制最大速度（非阻塞 async）。
+
+        speed_type: 0=Airspeed, 1=Ground Speed（Copter 用 1）, 2=Climb, 3=Descent。
+        speed_mps: 目標速度 (m/s)。DO_CHANGE_SPEED 常數定義在 scope 外的 longCommand.py，
+        故此處用共用 client 的泛用方法 _send_command_long_async 直接發 command=178，
+        不修改 fc_network_apps（維持 GUI-only scope）。"""
+        try:
+            parts = drone_id.split('_')
+            if len(parts) < 2:
+                _log("ERROR", f"[SET_SPEED] 無效的 drone_id 格式: {drone_id}")
+                return False
+            sysid = int(parts[-1])
+
+            client = self.get_or_create_client(drone_id)
+            if not client:
+                _log("ERROR", "[SET_SPEED] CommandLongClient 無法初始化")
+                return False
+
+            _log("INFO", f"[SET_SPEED] {drone_id} -> {speed_mps} m/s (type={speed_type})")
+            result = await client._send_command_long_async(
+                target_sysid=sysid,
+                target_compid=0,
+                command=178,          # MAV_CMD_DO_CHANGE_SPEED
+                confirmation=0,
+                param1=float(speed_type),
+                param2=float(speed_mps),
+                param3=-1.0,          # throttle 不變
+                param4=0.0,           # 0=absolute
+                param5=0.0,
+                param6=0.0,
+                param7=0.0,
+                timeout_sec=5.0,
+            )
+            if result and result.success:
+                _log("INFO", f"[SET_SPEED] {drone_id} 速度設定成功")
+                return True
+            _log("ERROR", f"[SET_SPEED] 速度設定失敗 (message={result.message if result else 'None'})")
+            return False
+        except Exception as e:
+            _log("ERROR", f"[SET_SPEED] 例外錯誤: {e}")
+            traceback.print_exc()
+            return False
+
     async def arm_drone(self, drone_id, arm):
         """使用 CommandLongClient 執行 ARM/DISARM（使用非阻塞的 async 方法）"""
         try:
@@ -1191,7 +1247,8 @@ class DroneMonitor(Node):
             action_name = "解鎖" if arm else "上鎖"
             _log("INFO", f"[ARM] {drone_id} -> {action_name}")
             
-            # 獲取或創建該 drone 專用的 client（避免多機並行時的競態條件）
+            # 取得共用 command_long client（OOM 修復後已非 per-drone，靠 request 的
+            # target_sysid 路由；drone_id 僅用於一次性 lazy fallback，無 per-drone 狀態）
             client = self.get_or_create_client(drone_id)
             if not client:
                 _log("ERROR", "[ARM] CommandLongClient 無法初始化")
@@ -1228,7 +1285,8 @@ class DroneMonitor(Node):
             
             _log("INFO", f"[TAKEOFF] {drone_id} -> 起飛 (高度={altitude}m)")
             
-            # 獲取或創建該 drone 專用的 client（避免多機並行時的競態條件）
+            # 取得共用 command_long client（OOM 修復後已非 per-drone，靠 request 的
+            # target_sysid 路由；drone_id 僅用於一次性 lazy fallback，無 per-drone 狀態）
             client = self.get_or_create_client(drone_id)
             if not client:
                 _log("ERROR", "[TAKEOFF] CommandLongClient 無法初始化")

src/GUI/gui.py

@@ -38,6 +38,7 @@ from mission_group import (
     MissionGroup, GroupPanel, DroneAssignDialog, GROUP_COLORS,
     DEFAULT_MISSION_PARAM_VALUES
 )
+from mission_orchestrator import EngagementPanel, MissionOrchestrator, MissionPhase
 # ================================================================================
 
 
@@ -169,9 +170,14 @@ class ControlStationUI(QMainWindow):
         self.executor = rclpy.executors.SingleThreadedExecutor()
         self.executor.add_node(self.monitor)
         
-        # 將執行器註冊到 DroneMonitor，以便動態創建的 CommandLongClient 能被添加
+        # 將執行器註冊到 DroneMonitor，以便共用 command/position client 能被添加
         self.monitor.executor = self.executor
 
+        # 啟動時先預建共用 command/position client（必須在 spin thread 啟動前、主執行緒），
+        # 避免執行期（切 mode / 首次 goto）新建 DDS participant 觸發 discovery 風暴(OOM)
+        # 與跨執行緒 add_node race(CPU 100%)。
+        self.monitor.init_shared_command_clients()
+
         # 在背景執行緒處理 ROS2 spin，避免佔用 Qt 主執行緒時間
         self.ros_thread_running = True
         self.ros_thread = threading.Thread(target=self._ros_spin_thread, daemon=True)
@@ -254,6 +260,11 @@ class ControlStationUI(QMainWindow):
         self.overview_timer.timeout.connect(self._flush_overview_table)
         self.overview_timer.start(200)
 
+        # 交戰面板：敵機↔最近友機距離讀數（5Hz）
+        self.engagement_timer = QTimer()
+        self.engagement_timer.timeout.connect(self._update_engagement_panel)
+        self.engagement_timer.start(200)
+
         # 初始化連接列表
         self.udp_receivers = []
         self.udp_connections = []
@@ -346,6 +357,17 @@ class ControlStationUI(QMainWindow):
         self.settings_tab = self._create_settings_tab()
         self.left_tab.addTab(self.settings_tab, "設定")
 
+        # — 分頁 6：交戰（敵機選擇 + 即時距離 + 階段狀態機）
+        self.engagement_panel = EngagementPanel()
+        self.engagement_panel.enemy_changed.connect(self._on_enemy_changed)
+        self.engagement_panel.confirm_requested.connect(self._on_engagement_confirm)
+        self.engagement_panel.stop_requested.connect(self._on_engagement_stop)
+        self.engagement_panel.groups_changed.connect(self._on_engagement_groups_changed)
+        self.engagement_panel.apply_speed_requested.connect(self._on_engagement_apply_speed)
+        self.engagement_panel.alt_offset_changed.connect(self._on_engagement_alt_offset)
+        self.left_tab.addTab(self.engagement_panel, "交戰")
+        self._init_orchestrator()
+
         # 右侧容器
         right_container = QWidget()
         right_layout = QVBoxLayout(right_container)
@@ -1552,27 +1574,30 @@ class ControlStationUI(QMainWindow):
         _log("INFO", f"Group {group_id} 準備切換模式為 {mode}")
         self.statusBar().showMessage("正在切換模式", 1000)
         
-        # 使用 asyncio 執行（通過事件循環）
-        async def do_mode_changes_async():
-            for drone_id in group.selected_drone_ids:
+        # 使用 asyncio 執行（通過事件循環）。
+        # 並發：每台各自 set_mode + 各自等自己的 ACK，用 gather 同時發，
+        # 避免逐台 await 造成序列化（最壞情況 N×timeout 一路卡著）。
+        async def _change_one(drone_id):
             try:
                 result = await self.monitor.set_mode(drone_id, mode)
-                    
                 if result:
                     msg = f"{drone_id} 切換成功"
                     _log("INFO", msg)
-                        self.message_queue.put((msg, 2000))
                 else:
                     msg = f"{drone_id} 切換失敗"
                     _log("WARN", msg)
                 self.message_queue.put((msg, 2000))
-                
             except Exception as e:
                 msg = f"{drone_id} 錯誤: {str(e)}"
                 _log("ERROR", msg)
                 traceback.print_exc()
                 self.message_queue.put((msg, 2000))
 
+        async def do_mode_changes_async():
+            await asyncio.gather(
+                *(_change_one(did) for did in group.selected_drone_ids)
+            )
+
         # 通過事件循環提交異步任務
         loop = asyncio.get_event_loop()
         asyncio.run_coroutine_threadsafe(
@@ -2463,6 +2488,152 @@ class ControlStationUI(QMainWindow):
         match = re.match(r's(\d+)_(\d+)', drone_id)
         return match.group(1) if match else 'unknown'
 
+    # ================================================================
+    # 交戰任務編排器（MissionOrchestrator）接線
+    # ================================================================
+    _PHASE_LABELS = {
+        MissionPhase.IDLE.value: "待機（尚未設定敵機/A 組）",
+        MissionPhase.WATCH.value: "監看偵測中",
+        MissionPhase.DETECTED.value: "已偵測到敵機 — 等待確認重編隊",
+        MissionPhase.PURSUE.value: "前進中（4 機 leader-follow）",
+        MissionPhase.ENCIRCLE.value: "包圍中",
+    }
+
+    def _init_orchestrator(self):
+        """建立 MissionOrchestrator，用 callback 與 GUI 解耦。"""
+        self.orchestrator = MissionOrchestrator(
+            make_executor=self._make_orchestrator_executor,
+            gps_provider=lambda: self.monitor.drone_gps,
+            # 敵機相對 home 高度（local_pose z，與 setpoint 同座標系）；勿用 drone_gps.alt（AMSL）
+            rel_alt_provider=lambda did: (
+                getattr(self.monitor, 'drone_local', {}).get(did) or {}).get('z'),
+            stop_groups_fn=self._stop_engagement_group_missions,
+        )
+        self._engagement_a_group = None
+        self._engagement_b_group = None
+        self.orchestrator.phase_changed.connect(self._on_orchestrator_phase_changed)
+        self.orchestrator.detection_prompt.connect(self._on_orchestrator_detection)
+        self.orchestrator.status_message.connect(
+            lambda msg: self.statusBar().showMessage(msg, 4000))
+
+    def _make_orchestrator_executor(self):
+        """為編排器建立 MissionExecutor（hover-hold：到達不自動結束，靠瞬時 slot 持續更新）。"""
+        ex = MissionExecutor(
+            sender=self.command_sender,
+            drone_gps=self.monitor.drone_gps,
+            monitor=self.monitor,
+            tick_rate_hz=2.0,
+            complete_stops=False,
+        )
+        ex.task_status_changed.connect(self._on_task_status_changed)
+        return ex
+
+    def _engagement_group_drone_ids(self, group_id):
+        """回傳指定 group 已分派的無人機清單（排序，穩定 rank）。"""
+        group = self.mission_groups.get(group_id)
+        if not group:
+            return []
+        return sorted(group.selected_drone_ids)
+
+    def _stop_engagement_group_missions(self):
+        """重編隊時，停掉 A/B 群組的掃描/待機任務，避免與合併 executor 雙重送點。"""
+        for gid in (self._engagement_a_group, self._engagement_b_group):
+            if gid and gid in self.mission_groups:
+                self._handle_group_stop(gid)
+
+    def _sync_orchestrator_config(self):
+        """把面板上的敵機 + A/B 組同步進 orchestrator（監看階段可連續更新）。"""
+        if not hasattr(self, 'orchestrator'):
+            return
+        a_ids = self._engagement_group_drone_ids(self._engagement_a_group) \
+            if self._engagement_a_group else []
+        b_ids = self._engagement_group_drone_ids(self._engagement_b_group) \
+            if self._engagement_b_group else []
+        enemy = self.engagement_panel.current_enemy()
+        self.orchestrator.configure(a_ids, b_ids, enemy)
+
+    def _update_engagement_panel(self):
+        """交戰面板週期更新：刷新群組清單、距離讀數、同步設定、驅動 orchestrator tick。"""
+        if not hasattr(self, 'engagement_panel'):
+            return
+        labels = [(gid, g.display_name) for gid, g in self.mission_groups.items()]
+        self.engagement_panel.refresh_group_list(labels)  # 內部只在變動時重建
+        self.engagement_panel.tick(self.drone_positions)
+        if hasattr(self, 'orchestrator'):
+            self._sync_orchestrator_config()
+            self.orchestrator.tick()
+
+    def _on_enemy_changed(self, enemy_id):
+        """敵機選擇改變的回呼。"""
+        self._sync_orchestrator_config()
+        if enemy_id:
+            self.statusBar().showMessage(f"已指定敵機：{enemy_id}", 3000)
+        else:
+            self.statusBar().showMessage("已清除敵機指定", 3000)
+
+    def _on_engagement_groups_changed(self, a_id, b_id):
+        """A/B 組指派改變 → 同步到 orchestrator。"""
+        self._engagement_a_group = a_id or None
+        self._engagement_b_group = b_id or None
+        self._sync_orchestrator_config()
+
+    def _on_engagement_apply_speed(self, friendly_speed, enemy_ratio):
+        """套用速度比例：友方 A+B 各機下 DO_CHANGE_SPEED = V，敵機 = ratio×V。
+        同步 orchestrator.friendly_speed，讓前置攔截 lead_time 用同一速度基準。"""
+        enemy_speed = friendly_speed * enemy_ratio
+        friendly_ids = []
+        for gid in (self._engagement_a_group, self._engagement_b_group):
+            friendly_ids.extend(self._engagement_group_drone_ids(gid) if gid else [])
+        enemy_id = self.engagement_panel.current_enemy()
+        if not friendly_ids and not enemy_id:
+            self.statusBar().showMessage("尚未指派 A/B 組或敵機，無法套用速度", 3000)
+            return
+        if hasattr(self, 'orchestrator'):
+            self.orchestrator.friendly_speed = float(friendly_speed)
+
+        async def _apply_one(did, speed, label):
+            try:
+                await self.monitor.set_speed(did, speed)
+            except Exception as e:
+                _log("ERROR", f"[套用速度] {label} {did} 失敗: {e}")
+
+        async def do_apply():
+            # 並發：友機各自 + 敵機，用 gather 同時發，各自等各自 ACK
+            tasks = [_apply_one(did, friendly_speed, "友機") for did in friendly_ids]
+            if enemy_id:
+                tasks.append(_apply_one(enemy_id, enemy_speed, "敵機"))
+            await asyncio.gather(*tasks)
+
+        asyncio.run_coroutine_threadsafe(do_apply(), asyncio.get_event_loop())
+        self.statusBar().showMessage(
+            f"套用速度：友機 {friendly_speed:.1f} m/s ({len(friendly_ids)} 台)、"
+            f"敵機 {enemy_speed:.1f} m/s", 4000)
+
+    def _on_engagement_alt_offset(self, offset):
+        """高度分層偏移即時生效：A=敵機高度+offset、B=敵機高度−offset。
+        下個 tick 的瞬時 slot 就會套用（PURSUE/ENCIRCLE 中調整也立即反映）。"""
+        if hasattr(self, 'orchestrator'):
+            self.orchestrator.alt_layer_offset = float(offset)
+            self.statusBar().showMessage(f"高度分層 ±{offset:.1f} m（A 上層 / B 下層）", 3000)
+
+    def _on_engagement_confirm(self):
+        if hasattr(self, 'orchestrator'):
+            self.orchestrator.confirm_detection()
+
+    def _on_engagement_stop(self):
+        if hasattr(self, 'orchestrator'):
+            self.orchestrator.stop()
+
+    def _on_orchestrator_phase_changed(self, phase_value):
+        """階段變更：更新面板文字與『確認重編隊』按鈕致能。"""
+        self.engagement_panel.set_phase_text(
+            self._PHASE_LABELS.get(phase_value, phase_value))
+        self.engagement_panel.set_confirm_enabled(
+            phase_value == MissionPhase.DETECTED.value)
+
+    def _on_orchestrator_detection(self, message):
+        self.statusBar().showMessage(message, 6000)
+
     def add_drone(self, drone_id):
         if drone_id in self.drones: return
         socket_id = self.get_socket_id(drone_id)
@@ -2475,6 +2646,9 @@ class ControlStationUI(QMainWindow):
         self.update_overview_table()
         # 同步新 drone 到 UI
         self.refresh_selection_ui()
+        # 同步敵機下拉選單（保留當前選擇）
+        if hasattr(self, 'engagement_panel'):
+            self.engagement_panel.refresh_drone_list(list(self.drones.keys()))
 
     def reorganize_socket_groups(self):
         while self.drone_panel_layout.count():
@@ -2572,9 +2746,10 @@ class ControlStationUI(QMainWindow):
                     
                     elif msg_type == 'local_pose':
                         x, y = data.get('x', 0), data.get('y', 0)
+                        z = data.get('z', 0)  # 相對 home 高度（正向朝上），供交戰高度分層用
                         if not hasattr(self.monitor, 'drone_local'):
                             self.monitor.drone_local = {}
-                        self.monitor.drone_local[drone_id] = {'x': x, 'y': y}
+                        self.monitor.drone_local[drone_id] = {'x': x, 'y': y, 'z': z}
                         self.queue_overview_update(drone_id, 'local', f"{x:.1f}, {y:.1f}")
                     
                     elif msg_type == 'loss_rate':
@@ -2781,14 +2956,10 @@ class ControlStationUI(QMainWindow):
             # Clean up serial receivers
             for receiver in self.monitor.serial_receivers:
                 receiver.stop()
-            # Clean up all CommandLongClient instances
-            for drone_id, client in self.monitor.command_long_clients.items():
-                try:
-                    client.destroy_node()
-                except:
-                    pass
-            # Clean up all PositionTargetGlobalIntClient instances
-            for drone_id, client in getattr(self.monitor, 'position_target_clients', {}).items():
+            # Clean up shared CommandLongClient / PositionTargetGlobalIntClient
+            for client in (getattr(self.monitor, 'command_long_client', None),
+                           getattr(self.monitor, 'position_target_client', None)):
+                if client is not None:
                     try:
                         client.destroy_node()
                     except:

src/GUI/mission_executor.py

@@ -102,9 +102,13 @@ class MissionExecutor(QObject):
                  barrier_timeout_sec=20.0,
                  hover_stable_sec=2.0,
                  progress_log_interval_sec=3.0,
-                 resend_interval_sec=2.5):
+                 resend_interval_sec=2.5,
+                 complete_stops=True):
         super().__init__()
         self.sender = sender
+        # complete_stops=False：全員到達也不停（hover-hold 持續重送），供
+        # orchestrator 的瞬時隊形追蹤使用（靠 update_plan 持續餵新 slot）。
+        self.complete_stops = complete_stops
         self.drone_gps = drone_gps
         self.monitor = monitor  # 保留：僅供外部手動 fallback 使用，閉環下不自動切 LOITER
         self.arrival_radius = arrival_radius
@@ -167,6 +171,46 @@ class MissionExecutor(QObject):
             f"{rv_info}",
         )
 
+    def update_plan(self, planned_waypoints):
+        """
+        熱替換航點（moving-target 用）。保留 RUNNING 狀態與 timer 不中斷，
+        只換各機的目標座標並重置到達/送出狀態，讓下個 tick 立即朝新目標。
+
+        - 未在執行中 → 等同 start()
+        - 沿用 start() 的 planned_waypoints 格式
+        - drone 集合可變動：新機補 task、消失的機移除；FALLBACK_LOITER 的機不強制復原
+        """
+        if self.state != MissionState.RUNNING:
+            self.start(planned_waypoints)
+            return
+
+        drone_ids = planned_waypoints['drone_ids']
+        waypoints_list = planned_waypoints['waypoints']
+        self.rendezvous_indices = set(
+            planned_waypoints.get('rendezvous_indices', []) or []
+        )
+
+        for i, drone_id in enumerate(drone_ids):
+            wps = waypoints_list[i]
+            task = self.tasks.get(drone_id)
+            if task is None:
+                sysid = int(drone_id.split('_')[1])
+                self.tasks[drone_id] = DroneTask(drone_id, sysid, wps)
+                continue
+            task.waypoints = wps
+            task.wp_index = 0
+            task.done = (len(wps) == 0)
+            task.last_sent_at = 0.0       # 下個 tick 立即重送新目標
+            task.entered_radius_at = 0.0
+            if task.status != TaskStatus.FALLBACK_LOITER:
+                task.status = TaskStatus.NORMAL
+
+        # 移除不在新計畫中的機
+        keep = set(drone_ids)
+        for drone_id in list(self.tasks.keys()):
+            if drone_id not in keep:
+                del self.tasks[drone_id]
+
     def pause(self):
         if self.state == MissionState.RUNNING:
             self._timer.stop()
@@ -280,6 +324,8 @@ class MissionExecutor(QObject):
             )
 
         # ---- Phase 4: 完成檢查 ----
+        if not self.complete_stops:
+            return  # hover-hold 模式：不自動結束，持續重送（Phase 3 已處理）
         all_done = all(
             t.done or t.status == TaskStatus.FALLBACK_LOITER
             for t in self.tasks.values()

src/GUI/mission_orchestrator.py

@@ -0,0 +1,752 @@
+#!/usr/bin/env python3
+"""
+任務編排器 (MissionOrchestrator) —— ABC 對抗任務的階段狀態機。
+
+角色：坐在既有 MissionExecutor 之上的「任務大腦」。偵察飛行由操作員用既有的
+群組執行按鈕控制（A 組 GRID_SWEEP、B 組待機）；orchestrator 只做兩件事：
+  1. 被動監看「A↔敵機」距離，達 R_detect 持續 dwell → latch，提示操作員。
+  2. 操作員按「重編隊」→ 接管 A+B 四機，用「瞬時隊形」追移動敵機、足夠近時展開包圍。
+
+追蹤採「瞬時隊形」而非路徑跟隨：每 tick 給每台一個目標點（此刻該站的隊形位置），
+敵機移動就更新。避免了路徑跟隨在移動目標下 index 歸零/往後外推造成的往返振盪。
+
+階段：IDLE → WATCH（監看偵測）→ DETECTED（latch，等確認）
+      → PURSUE（4 機瞬時 leader-follow 朝敵，B 在後方 slot 自然追上會合）
+      → ENCIRCLE（形心距敵 ≤ R_engage 展開包圍，圓心追敵；逃出 R_engage_exit 退回）
+
+設計定案見 memory: design_mission_orchestrator。修改限定 src/GUI/（scope_gui_only）。
+"""
+import math
+import time
+from enum import Enum
+
+from PyQt6.QtWidgets import (
+    QWidget, QVBoxLayout, QHBoxLayout, QLabel, QComboBox, QFrame, QPushButton,
+    QDoubleSpinBox
+)
+from PyQt6.QtCore import Qt, QObject, pyqtSignal
+
+
+def _log(level, message):
+    print(f"[{level}] {message}", flush=True)
+
+
+def _haversine(lat1, lon1, lat2, lon2):
+    """兩經緯度間的水平地面距離 (m)。"""
+    R = 6371000.0
+    p1 = math.radians(lat1)
+    p2 = math.radians(lat2)
+    dphi = math.radians(lat2 - lat1)
+    dlam = math.radians(lon2 - lon1)
+    a = (math.sin(dphi / 2) ** 2
+         + math.cos(p1) * math.cos(p2) * math.sin(dlam / 2) ** 2)
+    return 2 * R * math.asin(min(1.0, math.sqrt(a)))
+
+
+def _ll_to_m(lat, lon, ref_lat, ref_lon):
+    """經緯度 → 以 ref 為原點的本地平面公尺 (x=東, y=北)。等距近似，小範圍夠用。"""
+    x = math.radians(lon - ref_lon) * 6371000.0 * math.cos(math.radians(ref_lat))
+    y = math.radians(lat - ref_lat) * 6371000.0
+    return x, y
+
+
+def _m_to_ll(x, y, ref_lat, ref_lon):
+    """本地平面公尺 → 經緯度。"""
+    lat = ref_lat + math.degrees(y / 6371000.0)
+    lon = ref_lon + math.degrees(x / (6371000.0 * math.cos(math.radians(ref_lat))))
+    return lat, lon
+
+
+# 預設參數
+DEFAULT_R_DETECT = 40.0        # 偵測範圍 (m)
+DEFAULT_DETECT_DWELL = 1.0     # 偵測 dwell (s)
+DEFAULT_R_ENGAGE = 15.0        # 接戰半徑 (m)：形心↔敵 ≤ 此值 → 切包圍
+DEFAULT_R_ENGAGE_EXIT = 20.0   # 包圍退出半徑 (m)：> 此值 → 退回前進（hysteresis）
+DEFAULT_REPLAN_MOVE_M = 2.0    # 敵機位移 ≥ 此值即重算（moving target）
+DEFAULT_REPLAN_CAP_SEC = 1.0   # 重算週期上限 (s)
+DEFAULT_CIRCLE_RADIUS = 10.0   # 包圍半徑 (m)
+DEFAULT_LON_SPACING = 5.0      # 隊形縱向間距 (m)
+DEFAULT_LAT_OFFSET = 3.0       # 隊形橫向錯開 (m)
+DEFAULT_FORMATION_ALT = 10.0   # fallback 隊形基準高度 (m，相對 home)：敵機相對高度都讀不到時才用
+DEFAULT_ALT_LAYER_OFFSET = 5.0 # A/B 相對敵機高度的上下偏移 (m)：A=敵高+offset、B=敵高−offset
+DEFAULT_MIN_ALT_FLOOR = 5.0    # 相對 home 的最低安全高度 (m)：B 下層不得低於此值
+DEFAULT_LEAD_TIME_CAP = 4.0    # 前置攔截 lead_time 上限 (s)
+DEFAULT_FRIENDLY_SPEED = 5.0   # 友機假設水平速度 (m/s)：估 lead_time = gap/此值
+DEFAULT_ENEMY_VEL_WINDOW = 1.0 # 敵速估計的 GPS 差分視窗 (s)
+
+_NONE_LABEL = "（未選擇）"
+
+
+class MissionPhase(Enum):
+    IDLE = "idle"          # 未設定敵機/A 組
+    WATCH = "watch"        # 監看偵測（偵察飛行由操作員的群組任務負責）
+    DETECTED = "detected"  # 偵測 latch，等操作員確認重編隊
+    PURSUE = "pursue"      # 4 機瞬時 leader-follow 朝敵機
+    ENCIRCLE = "encircle"  # 4 機包圍敵機
+
+
+class MissionOrchestrator(QObject):
+    """
+    階段狀態機。透過注入的 callback 與 GUI 解耦（便於 headless 測試）：
+      make_executor()  -> MissionExecutor（complete_stops=False，hover-hold）
+      gps_provider()   -> {drone_id: {'lat','lon','alt'}}（alt 是 AMSL，勿當相對高度用）
+      rel_alt_provider(drone_id) -> 該機相對 home 的高度 z（local_pose，正向朝上）或 None
+      stop_groups_fn() -> 停掉操作員的 A/B 群組任務（重編隊時避免雙重送點）
+    """
+
+    phase_changed = pyqtSignal(str)      # MissionPhase.value
+    detection_prompt = pyqtSignal(str)   # 偵測提示（含最近友機/距離）
+    status_message = pyqtSignal(str)
+
+    def __init__(self, make_executor, gps_provider, stop_groups_fn=None,
+                 rel_alt_provider=None,
+                 r_detect=DEFAULT_R_DETECT,
+                 detect_dwell_sec=DEFAULT_DETECT_DWELL,
+                 r_engage=DEFAULT_R_ENGAGE,
+                 r_engage_exit=DEFAULT_R_ENGAGE_EXIT,
+                 replan_move_m=DEFAULT_REPLAN_MOVE_M,
+                 replan_cap_sec=DEFAULT_REPLAN_CAP_SEC,
+                 circle_radius=DEFAULT_CIRCLE_RADIUS,
+                 lon_spacing=DEFAULT_LON_SPACING,
+                 lat_offset=DEFAULT_LAT_OFFSET,
+                 formation_alt=DEFAULT_FORMATION_ALT,
+                 alt_layer_offset=DEFAULT_ALT_LAYER_OFFSET,
+                 min_alt_floor=DEFAULT_MIN_ALT_FLOOR,
+                 lead_time_cap_sec=DEFAULT_LEAD_TIME_CAP,
+                 friendly_speed=DEFAULT_FRIENDLY_SPEED,
+                 enemy_vel_window_sec=DEFAULT_ENEMY_VEL_WINDOW,
+                 parent=None):
+        super().__init__(parent)
+        self._make_executor = make_executor
+        self._gps_provider = gps_provider
+        self._rel_alt_provider = rel_alt_provider
+        self._stop_groups_fn = stop_groups_fn
+        self.r_detect = float(r_detect)
+        self.detect_dwell_sec = float(detect_dwell_sec)
+        self.r_engage = float(r_engage)
+        self.r_engage_exit = float(r_engage_exit)
+        self.replan_move_m = float(replan_move_m)
+        self.replan_cap_sec = float(replan_cap_sec)
+        self.circle_radius = float(circle_radius)
+        self.lon_spacing = float(lon_spacing)
+        self.lat_offset = float(lat_offset)
+        self.formation_alt = float(formation_alt)
+        self.alt_layer_offset = float(alt_layer_offset)
+        self.min_alt_floor = float(min_alt_floor)
+        self.lead_time_cap_sec = float(lead_time_cap_sec)
+        self.friendly_speed = float(friendly_speed)
+        self.enemy_vel_window_sec = float(enemy_vel_window_sec)
+
+        self.phase = MissionPhase.IDLE
+        self.a_drone_ids = []   # 偵察組
+        self.b_drone_ids = []   # 待機組
+        self.enemy_id = None
+
+        self._detect_since = 0.0
+        self._merged_ids = []           # PURSUE/ENCIRCLE 的 4 機（領隊優先，固定順序）
+        self._merged_ex = None          # 合併 executor（hover-hold）
+        self._last_replan_at = 0.0
+        self._last_plan_enemy = None    # 上次重算用的敵機 (lat, lon)
+        self._last_heading = (0.0, 1.0)  # 上次隊形朝向（敵機太近時沿用，避免抖動）
+        self._enemy_hist = []           # [(t, lat, lon)] 敵機軌跡（估速用）
+        self._enemy_vel = (0.0, 0.0)    # 估得的敵速 (east, north) m/s
+        self._last_enemy_rel_z = None   # 上次有效的敵機相對高度（provider 暫讀不到時沿用）
+
+    # ------------------------------------------------------------- 設定（可連續呼叫）
+    def configure(self, a_drone_ids, b_drone_ids, enemy_id):
+        """設定 A/B 組與敵機。監看/待機階段可隨時更新；進入 PURSUE 後鎖定不受影響。"""
+        if self.phase in (MissionPhase.PURSUE, MissionPhase.ENCIRCLE):
+            return False
+        self.a_drone_ids = list(a_drone_ids)
+        self.b_drone_ids = list(b_drone_ids)
+        new_enemy = enemy_id or None
+        if new_enemy != self.enemy_id:
+            self._detect_since = 0.0  # 換敵機重置 dwell
+        self.enemy_id = new_enemy
+        return True
+
+    def _configured(self):
+        return bool(self.enemy_id) and bool(self.a_drone_ids) \
+            and self.enemy_id not in set(self.a_drone_ids) | set(self.b_drone_ids) \
+            and not (set(self.a_drone_ids) & set(self.b_drone_ids))
+
+    # ------------------------------------------------------------- 重編隊 / 停止
+    def confirm_detection(self):
+        """DETECTED → PURSUE：操作員手動確認。停掉群組掃描，接管 4 機瞬時追蹤。"""
+        if self.phase != MissionPhase.DETECTED:
+            self.status_message.emit("目前不在待確認狀態")
+            return
+        gps = self._gps_provider()
+        epos = gps.get(self.enemy_id)
+        if not epos:
+            self.status_message.emit("敵機定位遺失，無法重編隊")
+            return
+        merged = self._merged_ids_leader_first(gps, epos)
+        if self._positions_for(merged, gps) is None:
+            self.status_message.emit("有無人機尚未定位，無法重編隊")
+            return
+
+        # 先停掉操作員的 A/B 群組任務，避免與合併 executor 雙重送點塞爆 adapter
+        if self._stop_groups_fn:
+            try:
+                self._stop_groups_fn()
+            except Exception as e:
+                _log("WARN", f"[orchestrator] 停止群組任務失敗: {e}")
+
+        self._merged_ids = merged
+        self._last_heading = (0.0, 1.0)
+        self._enemy_hist = []
+        self._enemy_vel = (0.0, 0.0)
+        self._update_enemy_velocity(epos)
+        slots = self._pursue_slots(gps, epos)
+        self._merged_ex = self._make_executor()
+        self._merged_ex.start(self._slots_to_plan(slots))
+        self._mark_replanned(epos)
+        self._set_phase(MissionPhase.PURSUE)
+        self.status_message.emit("重編隊確認：4 機前進中（B 追上會合）")
+
+    def stop(self):
+        """全體停止，回 IDLE。"""
+        if self._merged_ex is not None:
+            try:
+                self._merged_ex.stop()
+            except Exception:
+                pass
+            self._merged_ex = None
+        self._merged_ids = []
+        self._detect_since = 0.0
+        self._enemy_hist = []
+        self._enemy_vel = (0.0, 0.0)
+        self._set_phase(MissionPhase.IDLE)
+        self.status_message.emit("任務已停止")
+
+    # ------------------------------------------------------------- tick
+    def tick(self):
+        """GUI 週期呼叫。"""
+        # 自動進出監看（偵察飛行由操作員群組任務負責，這裡只監看偵測）
+        if self.phase == MissionPhase.IDLE and self._configured():
+            self._set_phase(MissionPhase.WATCH)
+        elif self.phase == MissionPhase.WATCH and not self._configured():
+            self._detect_since = 0.0
+            self._set_phase(MissionPhase.IDLE)
+
+        if self.phase == MissionPhase.WATCH:
+            self._tick_watch()
+        elif self.phase == MissionPhase.PURSUE:
+            self._tick_pursue()
+        elif self.phase == MissionPhase.ENCIRCLE:
+            self._tick_encircle()
+
+    def _tick_watch(self):
+        gps = self._gps_provider()
+        epos = gps.get(self.enemy_id)
+        if not epos:
+            self._detect_since = 0.0
+            return
+        nearest_id, nearest_d = None, None
+        for did in self.a_drone_ids:
+            pos = gps.get(did)
+            if not pos:
+                continue
+            d = _haversine(epos['lat'], epos['lon'], pos['lat'], pos['lon'])
+            if nearest_d is None or d < nearest_d:
+                nearest_id, nearest_d = did, d
+
+        now = time.monotonic()
+        if nearest_d is not None and nearest_d <= self.r_detect:
+            if self._detect_since == 0.0:
+                self._detect_since = now
+            elif now - self._detect_since >= self.detect_dwell_sec:
+                self._set_phase(MissionPhase.DETECTED)  # latch，等操作員手動確認
+                self.detection_prompt.emit(
+                    f"偵測到敵機（{nearest_id} 距 {nearest_d:.1f} m）— 請確認重編隊")
+        else:
+            self._detect_since = 0.0
+
+    def _tick_pursue(self):
+        gps = self._gps_provider()
+        epos = gps.get(self.enemy_id)
+        if not epos:
+            return  # 敵機定位遺失（S4 加 stale-timeout hold）
+        self._update_enemy_velocity(epos)
+        d = self._centroid_dist(gps, epos)
+        if d is None:
+            return
+        if d <= self.r_engage:
+            self._apply_slots(self._circle_slots(gps, epos), epos)
+            self._set_phase(MissionPhase.ENCIRCLE)
+            self.status_message.emit("進入包圍")
+            return
+        if self._should_replan(time.monotonic(), epos):
+            self._apply_slots(self._pursue_slots(gps, epos), epos)
+
+    def _tick_encircle(self):
+        gps = self._gps_provider()
+        epos = gps.get(self.enemy_id)
+        if not epos:
+            return
+        self._update_enemy_velocity(epos)
+        d = self._centroid_dist(gps, epos)
+        if d is None:
+            return
+        if d > self.r_engage_exit:
+            self._apply_slots(self._pursue_slots(gps, epos), epos)
+            self._set_phase(MissionPhase.PURSUE)
+            self.status_message.emit("敵機逃離，退回前進")
+            return
+        if self._should_replan(time.monotonic(), epos):
+            self._apply_slots(self._circle_slots(gps, epos), epos)
+
+    # ------------------------------------------------------------- 高度分層
+    def _enemy_base_alt(self):
+        """分層基準 = 敵機當下『相對 home』高度（來自 local_pose z，與 setpoint 同座標系）。
+        provider 暫讀不到（None）時沿用上一次有效值；連一次都沒有才退回 formation_alt。
+        注意：不可用 gps_provider 的 alt（那是 AMSL 海拔，座標系不同會炸高）。"""
+        z = None
+        if self._rel_alt_provider is not None and self.enemy_id is not None:
+            try:
+                z = self._rel_alt_provider(self.enemy_id)
+            except Exception:
+                z = None
+        if z is not None:
+            self._last_enemy_rel_z = float(z)
+            return float(z)
+        if self._last_enemy_rel_z is not None:
+            return self._last_enemy_rel_z
+        return self.formation_alt
+
+    def _alt_for(self, did, base):
+        """S3 高度分層：以敵機高度 base 為中心，A 組（含領隊）走上層 base+offset、
+        B 組走下層 base−offset（不低於地面下限）。分層後 A/B 垂直錯開避免同高交叉撞機。"""
+        if did in set(self.b_drone_ids):
+            return max(self.min_alt_floor, base - self.alt_layer_offset)
+        return base + self.alt_layer_offset
+
+    # ------------------------------------------------------------- 前置攔截（估敵速）
+    def _update_enemy_velocity(self, epos):
+        """用敵機 GPS 差分估水平速度 (east, north) m/s，視窗 enemy_vel_window_sec。"""
+        now = time.monotonic()
+        self._enemy_hist.append((now, epos['lat'], epos['lon']))
+        while (len(self._enemy_hist) >= 2
+               and now - self._enemy_hist[0][0] > self.enemy_vel_window_sec):
+            self._enemy_hist.pop(0)
+        if len(self._enemy_hist) >= 2:
+            t0, la0, lo0 = self._enemy_hist[0]
+            t1, la1, lo1 = self._enemy_hist[-1]
+            dt = t1 - t0
+            if dt > 1e-3:
+                dx, dy = _ll_to_m(la1, lo1, la0, lo0)  # sample0→sample1 位移 (m)
+                self._enemy_vel = (dx / dt, dy / dt)
+
+    def enemy_speed(self):
+        """估得的敵機水平速率 (m/s)。"""
+        return math.hypot(*self._enemy_vel)
+
+    def _aim_point(self, gps, epos):
+        """前置攔截點：敵位 + 敵速×lead_time。lead_time = gap/friendly_speed（封頂
+        lead_time_cap_sec）。敵速尚未估到時退化為瞄當下位置（等同原純追尾）。"""
+        evx, evy = self._enemy_vel
+        lp = gps.get(self._merged_ids[0]) if self._merged_ids else None
+        gap = (_haversine(lp['lat'], lp['lon'], epos['lat'], epos['lon'])
+               if lp else 0.0)
+        lead_t = min(self.lead_time_cap_sec, gap / max(self.friendly_speed, 0.1))
+        return _m_to_ll(evx * lead_t, evy * lead_t, epos['lat'], epos['lon'])
+
+    # ------------------------------------------------------------- 瞬時隊形
+    def _pursue_slots(self, gps, epos):
+        """朝『前置攔截點』的瞬時 leader-follow：領隊朝攔截點，僚機沿隊軸後方 rank×間距、左右錯開。"""
+        ids = self._merged_ids
+        tlat, tlon = self._aim_point(gps, epos)  # 前置攔截點取代敵機當下位置
+        lp = gps.get(ids[0])
+        if lp is None:
+            return None
+        lx, ly = _ll_to_m(lp['lat'], lp['lon'], tlat, tlon)  # 領隊相對攔截點
+        hx, hy = -lx, -ly                                    # 領隊 → 攔截點
+        n = math.hypot(hx, hy)
+        if n < 1.0:
+            h = self._last_heading  # 太近，沿用上次朝向避免抖動
+        else:
+            h = (hx / n, hy / n)
+        self._last_heading = h
+        px, py = -h[1], h[0]  # 左垂直
+        base = self._enemy_base_alt()  # 高度分層基準：敵機相對高度（每 tick 取一次）
+        slots = {}
+        for rank, d in enumerate(ids):
+            lat_sign = -1 if rank % 2 == 0 else 1
+            # 領隊(rank0)目標≈攔截點；僚機沿 -h 後退 rank×間距，並左右錯開
+            sx = -h[0] * (rank * self.lon_spacing) + px * (lat_sign * self.lat_offset)
+            sy = -h[1] * (rank * self.lon_spacing) + py * (lat_sign * self.lat_offset)
+            lat, lon = _m_to_ll(sx, sy, tlat, tlon)
+            slots[d] = (lat, lon, self._alt_for(d, base))
+        return slots
+
+    def _circle_slots(self, gps, epos):
+        """繞敵機的瞬時包圍：N 機均分在半徑 circle_radius 的圓周上。"""
+        ids = self._merged_ids
+        elat, elon = epos['lat'], epos['lon']
+        n = len(ids)
+        base = self._enemy_base_alt()  # 高度分層基準：敵機相對高度（每 tick 取一次）
+        slots = {}
+        for i, d in enumerate(ids):
+            theta = 2.0 * math.pi * i / max(1, n)
+            x = self.circle_radius * math.cos(theta)
+            y = self.circle_radius * math.sin(theta)
+            lat, lon = _m_to_ll(x, y, elat, elon)
+            slots[d] = (lat, lon, self._alt_for(d, base))
+        return slots
+
+    def _apply_slots(self, slots, epos):
+        """把瞬時 slot 熱替換給合併 executor 並更新重算基準。"""
+        if slots is None or self._merged_ex is None:
+            return
+        self._merged_ex.update_plan(self._slots_to_plan(slots))
+        self._mark_replanned(epos)
+
+    def _slots_to_plan(self, slots):
+        return {
+            'drone_ids': list(self._merged_ids),
+            'waypoints': [[slots[d]] for d in self._merged_ids],
+            'rendezvous_indices': [],
+        }
+
+    # ------------------------------------------------------------- 內部
+    def _centroid_dist(self, gps, epos):
+        m_pos = self._positions_for(self._merged_ids, gps)
+        if m_pos is None:
+            return None
+        cen_lat = sum(p[0] for p in m_pos) / len(m_pos)
+        cen_lon = sum(p[1] for p in m_pos) / len(m_pos)
+        return _haversine(cen_lat, cen_lon, epos['lat'], epos['lon'])
+
+    def _positions_for(self, drone_ids, gps):
+        out = []
+        for did in drone_ids:
+            p = gps.get(did)
+            if not p:
+                return None
+            out.append((p['lat'], p['lon'], p.get('alt', 0.0)))
+        return out
+
+    def _merged_ids_leader_first(self, gps, epos):
+        """A+B 合併；A 中離敵最近者當領隊(rank0)，其餘 A 維持原序，再接 B。"""
+        def dist(did):
+            p = gps.get(did)
+            return float('inf') if not p else _haversine(
+                epos['lat'], epos['lon'], p['lat'], p['lon'])
+        if not self.a_drone_ids:
+            return list(self.b_drone_ids)
+        leader = min(self.a_drone_ids, key=dist)
+        rest_a = [d for d in self.a_drone_ids if d != leader]
+        return [leader] + rest_a + list(self.b_drone_ids)
+
+    def _mark_replanned(self, epos):
+        self._last_replan_at = time.monotonic()
+        self._last_plan_enemy = (epos['lat'], epos['lon'])
+
+    def _should_replan(self, now, epos):
+        if self._last_plan_enemy is None:
+            return True
+        moved = _haversine(self._last_plan_enemy[0], self._last_plan_enemy[1],
+                           epos['lat'], epos['lon'])
+        return (moved >= self.replan_move_m
+                or (now - self._last_replan_at) >= self.replan_cap_sec)
+
+    def _set_phase(self, phase):
+        if phase == self.phase:
+            return
+        self.phase = phase
+        _log("INFO", f"[orchestrator] phase → {phase.value}")
+        self.phase_changed.emit(phase.value)
+
+
+class EngagementPanel(QWidget):
+    """
+    交戰控制面板。
+
+    - 敵機下拉 + 即時「敵機↔最近友機」距離
+    - A/B 組指派下拉
+    - 階段顯示、重編隊 / 停止 按鈕
+
+    偵察飛行用既有的群組執行按鈕控制，這裡不含「開始」。面板只發訊號，邏輯在 GUI/orchestrator。
+    """
+
+    enemy_changed = pyqtSignal(str)        # drone_id（未選擇=空字串）
+    confirm_requested = pyqtSignal()       # 重編隊
+    stop_requested = pyqtSignal()
+    groups_changed = pyqtSignal(str, str)  # (a_group_id, b_group_id)
+    apply_speed_requested = pyqtSignal(float, float)  # (friendly_speed, enemy_ratio)
+    alt_offset_changed = pyqtSignal(float)  # A/B 相對敵機高度的上下偏移 (m)
+
+    def __init__(self, parent=None, r_detect=DEFAULT_R_DETECT,
+                 friendly_speed=DEFAULT_FRIENDLY_SPEED,
+                 alt_offset=DEFAULT_ALT_LAYER_OFFSET):
+        super().__init__(parent)
+        self.r_detect = float(r_detect)
+        self._init_friendly_speed = float(friendly_speed)
+        self._init_alt_offset = float(alt_offset)
+        self._enemy_id = ""
+        self._suppress_enemy = False
+        self._suppress_group = False
+        self._group_sig = None  # 目前下拉內容的簽章，變了才重建（避免 5Hz 狂刷）
+        self._build_ui()
+
+    # ------------------------------------------------------------------ UI
+    def _build_ui(self):
+        root = QVBoxLayout(self)
+        root.setContentsMargins(12, 12, 12, 12)
+        root.setSpacing(10)
+        root.setAlignment(Qt.AlignmentFlag.AlignTop)
+
+        title = QLabel("交戰設定")
+        title.setStyleSheet(
+            "color: #DDD; font-size: 14px; font-weight: bold; padding: 2px;")
+        root.addWidget(title)
+
+        combo_css = (
+            "QComboBox { background-color: #333; color: #EEE; border: 1px solid #555;"
+            " border-radius: 3px; padding: 3px 6px; font-size: 12px; min-width: 120px; }")
+
+        enemy_row = QHBoxLayout()
+        enemy_row.setSpacing(8)
+        el = QLabel("敵機 sysid：")
+        el.setStyleSheet("color: #CCC; font-size: 12px;")
+        self.enemy_combo = QComboBox()
+        self.enemy_combo.setStyleSheet(combo_css)
+        self.enemy_combo.addItem(_NONE_LABEL)
+        self.enemy_combo.currentTextChanged.connect(self._on_enemy_changed)
+        enemy_row.addWidget(el)
+        enemy_row.addWidget(self.enemy_combo)
+        enemy_row.addStretch()
+        root.addLayout(enemy_row)
+
+        a_row = QHBoxLayout()
+        a_row.setSpacing(8)
+        al = QLabel("偵察組 A：")
+        al.setStyleSheet("color: #CCC; font-size: 12px;")
+        self.a_group_combo = QComboBox()
+        self.a_group_combo.setStyleSheet(combo_css)
+        self.a_group_combo.addItem(_NONE_LABEL, None)
+        self.a_group_combo.currentTextChanged.connect(self._on_group_changed)
+        a_row.addWidget(al)
+        a_row.addWidget(self.a_group_combo)
+        a_row.addStretch()
+        root.addLayout(a_row)
+
+        b_row = QHBoxLayout()
+        b_row.setSpacing(8)
+        bl = QLabel("待機組 B：")
+        bl.setStyleSheet("color: #CCC; font-size: 12px;")
+        self.b_group_combo = QComboBox()
+        self.b_group_combo.setStyleSheet(combo_css)
+        self.b_group_combo.addItem(_NONE_LABEL, None)
+        self.b_group_combo.currentTextChanged.connect(self._on_group_changed)
+        b_row.addWidget(bl)
+        b_row.addWidget(self.b_group_combo)
+        b_row.addStretch()
+        root.addLayout(b_row)
+
+        # 速度比例限速：友方 V、敵方 r×V，按鈕一次套用（DO_CHANGE_SPEED）
+        spin_css = (
+            "QDoubleSpinBox { background-color: #333; color: #EEE;"
+            " border: 1px solid #555; border-radius: 3px; padding: 2px 4px;"
+            " font-size: 12px; min-width: 70px; }")
+        speed_row = QHBoxLayout()
+        speed_row.setSpacing(8)
+        sl = QLabel("友機速度：")
+        sl.setStyleSheet("color: #CCC; font-size: 12px;")
+        self.friendly_speed_spin = QDoubleSpinBox()
+        self.friendly_speed_spin.setStyleSheet(spin_css)
+        self.friendly_speed_spin.setRange(0.5, 20.0)
+        self.friendly_speed_spin.setSingleStep(0.5)
+        self.friendly_speed_spin.setDecimals(1)
+        self.friendly_speed_spin.setSuffix(" m/s")
+        self.friendly_speed_spin.setValue(self._init_friendly_speed)
+        rl = QLabel("敵/友比例：")
+        rl.setStyleSheet("color: #CCC; font-size: 12px;")
+        self.enemy_ratio_spin = QDoubleSpinBox()
+        self.enemy_ratio_spin.setStyleSheet(spin_css)
+        self.enemy_ratio_spin.setRange(0.1, 1.0)
+        self.enemy_ratio_spin.setSingleStep(0.05)
+        self.enemy_ratio_spin.setDecimals(2)
+        self.enemy_ratio_spin.setValue(0.6)
+        speed_row.addWidget(sl)
+        speed_row.addWidget(self.friendly_speed_spin)
+        speed_row.addWidget(rl)
+        speed_row.addWidget(self.enemy_ratio_spin)
+        speed_row.addStretch()
+        root.addLayout(speed_row)
+
+        apply_speed_row = QHBoxLayout()
+        self.apply_speed_btn = QPushButton("套用速度")
+        self.apply_speed_btn.setStyleSheet(
+            "QPushButton { background-color: #00796B; color: white; border: none;"
+            " padding: 6px 14px; border-radius: 4px; font-weight: bold; }"
+            " QPushButton:hover { background-color: #00897B; }")
+        self.apply_speed_btn.clicked.connect(self._on_apply_speed)
+        self.enemy_speed_hint = QLabel("")
+        self.enemy_speed_hint.setStyleSheet("color: #777; font-size: 11px;")
+        self._refresh_enemy_speed_hint()
+        self.friendly_speed_spin.valueChanged.connect(self._refresh_enemy_speed_hint)
+        self.enemy_ratio_spin.valueChanged.connect(self._refresh_enemy_speed_hint)
+        apply_speed_row.addWidget(self.apply_speed_btn)
+        apply_speed_row.addWidget(self.enemy_speed_hint)
+        apply_speed_row.addStretch()
+        root.addLayout(apply_speed_row)
+
+        # 高度分層：A=敵機高度+offset、B=敵機高度−offset（即時生效，不需重編隊）
+        alt_row = QHBoxLayout()
+        alt_row.setSpacing(8)
+        altl = QLabel("高度分層 ±：")
+        altl.setStyleSheet("color: #CCC; font-size: 12px;")
+        self.alt_offset_spin = QDoubleSpinBox()
+        self.alt_offset_spin.setStyleSheet(spin_css)
+        self.alt_offset_spin.setRange(0.0, 30.0)
+        self.alt_offset_spin.setSingleStep(0.5)
+        self.alt_offset_spin.setDecimals(1)
+        self.alt_offset_spin.setSuffix(" m")
+        self.alt_offset_spin.setValue(self._init_alt_offset)
+        self.alt_offset_spin.valueChanged.connect(
+            lambda v: self.alt_offset_changed.emit(float(v)))
+        alt_hint = QLabel("（A 走上層 / B 走下層，繞敵機高度）")
+        alt_hint.setStyleSheet("color: #777; font-size: 11px;")
+        alt_row.addWidget(altl)
+        alt_row.addWidget(self.alt_offset_spin)
+        alt_row.addWidget(alt_hint)
+        alt_row.addStretch()
+        root.addLayout(alt_row)
+
+        sep = QFrame()
+        sep.setFrameShape(QFrame.Shape.HLine)
+        sep.setStyleSheet("color: #444;")
+        root.addWidget(sep)
+
+        self.distance_label = QLabel("敵機 ↔ 最近友機：—")
+        self.distance_label.setStyleSheet(
+            "color: #AAA; font-size: 13px; padding: 4px 2px;")
+        root.addWidget(self.distance_label)
+
+        hint = QLabel(f"（偵測範圍 R_detect = {self.r_detect:.0f} m）")
+        hint.setStyleSheet("color: #777; font-size: 11px;")
+        root.addWidget(hint)
+
+        self.phase_label = QLabel("階段：待機")
+        self.phase_label.setStyleSheet(
+            "color: #64B5F6; font-size: 13px; font-weight: bold; padding: 4px 2px;")
+        root.addWidget(self.phase_label)
+
+        btn_css = ("QPushButton {{ background-color: {bg}; color: {fg}; border: none;"
+                   " padding: 8px 16px; border-radius: 4px; font-weight: bold; }}"
+                   " QPushButton:hover {{ background-color: {hover}; }}"
+                   " QPushButton:disabled {{ background-color: #444; color: #888; }}")
+        btn_row = QHBoxLayout()
+        btn_row.setSpacing(8)
+        self.confirm_btn = QPushButton("重編隊")
+        self.confirm_btn.setStyleSheet(btn_css.format(bg='#F57C00', fg='white', hover='#FB8C00'))
+        self.confirm_btn.clicked.connect(lambda: self.confirm_requested.emit())
+        self.confirm_btn.setEnabled(False)
+        self.stop_btn = QPushButton("停止")
+        self.stop_btn.setStyleSheet(btn_css.format(bg='#555', fg='#DDD', hover='#666'))
+        self.stop_btn.clicked.connect(lambda: self.stop_requested.emit())
+        btn_row.addWidget(self.confirm_btn)
+        btn_row.addWidget(self.stop_btn)
+        btn_row.addStretch()
+        root.addLayout(btn_row)
+
+    # -------------------------------------------------------------- 對外 API
+    def current_enemy(self):
+        return self._enemy_id or None
+
+    def refresh_drone_list(self, drone_ids):
+        items = [_NONE_LABEL] + sorted(drone_ids)
+        current = self._enemy_id if self._enemy_id in drone_ids else ""
+        self._suppress_enemy = True
+        self.enemy_combo.clear()
+        self.enemy_combo.addItems(items)
+        idx = self.enemy_combo.findText(current) if current else 0
+        self.enemy_combo.setCurrentIndex(idx if idx >= 0 else 0)
+        self._suppress_enemy = False
+        if current != self._enemy_id:
+            self._enemy_id = current
+            self.enemy_changed.emit(self._enemy_id)
+
+    def refresh_group_list(self, group_labels):
+        """group_labels: list[(group_id, display_text)]。只有內容變動才重建，避免 5Hz 狂刷。"""
+        sig = tuple(group_labels)
+        if sig == self._group_sig:
+            return
+        self._group_sig = sig
+        self._suppress_group = True
+        for combo in (self.a_group_combo, self.b_group_combo):
+            prev = combo.currentData()
+            combo.clear()
+            combo.addItem(_NONE_LABEL, None)
+            for gid, text in group_labels:
+                combo.addItem(text, gid)
+            if prev is not None:
+                i = combo.findData(prev)
+                combo.setCurrentIndex(i if i >= 0 else 0)
+        self._suppress_group = False
+
+    def selected_group_ids(self):
+        return self.a_group_combo.currentData(), self.b_group_combo.currentData()
+
+    def set_phase_text(self, text):
+        self.phase_label.setText(f"階段：{text}")
+
+    def set_confirm_enabled(self, enabled):
+        self.confirm_btn.setEnabled(enabled)
+
+    def tick(self, drone_positions):
+        """{drone_id: (lat, lon)} 更新距離讀數。"""
+        enemy = self._enemy_id
+        base = "color: #AAA; font-size: 13px; padding: 4px 2px;"
+        if not enemy:
+            self.distance_label.setText("敵機 ↔ 最近友機：（尚未選擇敵機）")
+            self.distance_label.setStyleSheet(base)
+            return
+        epos = drone_positions.get(enemy)
+        if not epos:
+            self.distance_label.setText(f"敵機 {enemy} ↔ 最近友機：（等待敵機定位）")
+            self.distance_label.setStyleSheet(base)
+            return
+        nearest_id, nearest_d = None, None
+        for did, pos in drone_positions.items():
+            if did == enemy or not pos:
+                continue
+            d = _haversine(epos[0], epos[1], pos[0], pos[1])
+            if nearest_d is None or d < nearest_d:
+                nearest_id, nearest_d = did, d
+        if nearest_id is None:
+            self.distance_label.setText(f"敵機 {enemy} ↔ 最近友機：（無友機定位）")
+            self.distance_label.setStyleSheet(base)
+            return
+        color = "#E57373" if nearest_d <= self.r_detect else "#81C784"
+        self.distance_label.setText(
+            f"敵機 {enemy} ↔ 最近友機 {nearest_id}：{nearest_d:.1f} m")
+        self.distance_label.setStyleSheet(
+            f"color: {color}; font-size: 13px; font-weight: bold; padding: 4px 2px;")
+
+    # ----------------------------------------------------------------- 內部
+    def _on_enemy_changed(self, text):
+        if self._suppress_enemy:
+            return
+        self._enemy_id = "" if text == _NONE_LABEL else text
+        _log("INFO", f"[交戰] 敵機選擇：{self._enemy_id or '（未選擇）'}")
+        self.enemy_changed.emit(self._enemy_id)
+
+    def _on_group_changed(self, _text):
+        if self._suppress_group:
+            return
+        a_id, b_id = self.selected_group_ids()
+        self.groups_changed.emit(a_id or "", b_id or "")
+
+    def _refresh_enemy_speed_hint(self, *_):
+        v = self.friendly_speed_spin.value()
+        r = self.enemy_ratio_spin.value()
+        self.enemy_speed_hint.setText(f"→ 友機 {v:.1f} m/s、敵機 {v * r:.1f} m/s")
+
+    def _on_apply_speed(self):
+        v = self.friendly_speed_spin.value()
+        r = self.enemy_ratio_spin.value()
+        _log("INFO", f"[交戰] 套用速度：友機 {v:.1f} m/s、敵機 {v * r:.1f} m/s (比例 {r:.2f})")
+        self.apply_speed_requested.emit(v, r)