功能：id=1 超管无需职务即可发放奖励金币

前端（frame.blade.php）：
- Auth::id()===1 时 myMaxReward=-1（不限），送金币按钮始终显示

后端（AdminCommandController::reward）：
- isSuperAdmin=true 时跳过职务检查和①②③④限额校验
- 全局接收次数⑤对超管同样生效（防止刷奖励）
- 履职记录 user_position_id 允许 null（超管无职务时）
- 发放备注改用 positionName 变量（超管显示「超级管理员」）

顺带修复：②操作人单日累计统计之前误查 target_user_id，
已改为正确的 user_id（操作人自己今日已发总额）

app/Http/Controllers/AdminCommandController.php

@@ -442,64 +442,73 @@ class AdminCommandController extends Controller
             return response()->json(['status' => 'error', 'message' => '不能给自己发放奖励'], 422);
         }
 
-        // 必须有在职职务且职务配置了 max_reward
-        $userPosition = $admin->activePosition;
-        if (! $userPosition) {
-            return response()->json(['status' => 'error', 'message' => '你当前没有在职职务，无权发放奖励'], 403);
-        }
-
-        $position = $userPosition->position;
-        if (! $position?->max_reward) {
-            return response()->json(['status' => 'error', 'message' => '你的职务未配置奖励权限'], 403);
-        }
-
         // 目标用户必须存在
         $target = User::where('username', $targetUsername)->first();
         if (! $target) {
             return response()->json(['status' => 'error', 'message' => '用户不存在'], 404);
         }
 
-        // ① 单次上限校验
-        if ($amount > $position->max_reward) {
-            return response()->json([
-                'status' => 'error',
-                'message' => "单次奖励上限为 {$position->max_reward} 金币，请调整金额",
-            ], 422);
-        }
+        // id=1 超级管理员：无需职务，无限额限制
+        $isSuperAdmin = $admin->id === 1;
+        $userPosition = null;
+        $position = null;
 
-        // ② 操作人单日累计上限校验
-        if ($position->daily_reward_limit) {
-            $todayTotal = PositionAuthorityLog::where('target_user_id', $target->id)
-                ->where('action_type', 'reward')
-                ->whereDate('created_at', today())
-                ->sum('amount');
+        if (! $isSuperAdmin) {
+            // ① 必须有在职职务
+            $userPosition = $admin->activePosition;
+            if (! $userPosition) {
+                return response()->json(['status' => 'error', 'message' => '你当前没有在职职务，无权发放奖励'], 403);
+            }
 
-            if ($todayTotal + $amount > $position->daily_reward_limit) {
-                $remaining = max(0, $position->daily_reward_limit - $todayTotal);
+            $position = $userPosition->position;
 
+            // 职务 max_reward = 0 表示禁止，null 表示不限，正整数表示有上限
+            if ($position?->max_reward === 0) {
+                return response()->json(['status' => 'error', 'message' => '你的职务未配置奖励权限'], 403);
+            }
+
+            // ② 单次上限校验（max_reward > 0 时才限制，null = 不限）
+            if ($position->max_reward && $amount > $position->max_reward) {
                 return response()->json([
                     'status' => 'error',
-                    'message' => "今日剩余可发放额度为 {$remaining} 金币，超出单日上限（{$position->daily_reward_limit}）",
+                    'message' => "单次奖励上限为 {$position->max_reward} 金币，请调整金额",
                 ], 422);
             }
+
+            // ③ 操作人单日累计上限校验
+            if ($position->daily_reward_limit) {
+                $todayTotal = PositionAuthorityLog::where('user_id', $admin->id)
+                    ->where('action_type', 'reward')
+                    ->whereDate('created_at', today())
+                    ->sum('amount');
+
+                if ($todayTotal + $amount > $position->daily_reward_limit) {
+                    $remaining = max(0, $position->daily_reward_limit - $todayTotal);
+
+                    return response()->json([
+                        'status' => 'error',
+                        'message' => "今日剩余可发放额度为 {$remaining} 金币，超出单日上限（{$position->daily_reward_limit}）",
+                    ], 422);
+                }
+            }
+
+            // ④ 职务级别：接收者每日次数上限
+            if ($position->recipient_daily_limit) {
+                $recipientCount = PositionAuthorityLog::where('target_user_id', $target->id)
+                    ->where('action_type', 'reward')
+                    ->whereDate('created_at', today())
+                    ->count();
+
+                if ($recipientCount >= $position->recipient_daily_limit) {
+                    return response()->json([
+                        'status' => 'error',
+                        'message' => "{$targetUsername} 今日已由全体职务人员累计发放 {$recipientCount} 次奖励，已达每日上限（{$position->recipient_daily_limit}）",
+                    ], 422);
+                }
+            }
         }
 
-        // ③ 同一接收者每日次数上限校验（统计今日所有职务持有者对该用户的累计发放次数）
-        if ($position->recipient_daily_limit) {
-            $recipientCount = PositionAuthorityLog::where('target_user_id', $target->id)
-                ->where('action_type', 'reward')
-                ->whereDate('created_at', today())
-                ->count();
-
-            if ($recipientCount >= $position->recipient_daily_limit) {
-                return response()->json([
-                    'status' => 'error',
-                    'message' => "{$targetUsername} 今日已由全体职务人员累计发放 {$recipientCount} 次奖励，已达每日上限（{$position->recipient_daily_limit}）",
-                ], 422);
-            }
-        }
-
-        // ④ 全局系统级别：每位用户单日最多接收奖励次数（后台职务管理页统一配置）
+        // ⑤ 全局系统级别：每位用户单日最多接收奖励次数（所有操作人通用，含超管）
         $globalMax = (int) Sysparam::getValue('reward_recipient_daily_max', '0');
         if ($globalMax > 0) {
             $globalCount = PositionAuthorityLog::where('target_user_id', $target->id)
@@ -516,19 +525,20 @@ class AdminCommandController extends Controller
         }
 
         // 发放金币（通过 UserCurrencyService 原子性更新 + 写流水）
+        $positionName = $isSuperAdmin ? '超级管理员' : ($position->name ?? '职务');
         $this->currencyService->change(
             $target,
             'gold',
             $amount,
             CurrencySource::POSITION_REWARD,
-            "{$admin->username}（{$position->name}）职务奖励",
+            "{$admin->username}（{$positionName}）职务奖励",
             $roomId,
         );
 
-        // 写履职记录（PositionAuthorityLog）
+        // 写履职记录（PositionAuthorityLog；超管无职务时 user_position_id 留 null）
         PositionAuthorityLog::create([
             'user_id' => $admin->id,
-            'user_position_id' => $userPosition->id,
+            'user_position_id' => $userPosition?->id,
             'action_type' => 'reward',
             'target_user_id' => $target->id,
             'amount' => $amount,