功能：送花/礼物系统完整开发

- 新增 Gift 模型和 gifts 数据表（7种默认花卉，各有图片/金币/魅力配置）
- 7张花卉图片生成并存放于 public/images/gifts/
- 名片弹窗新增送礼物 UI：图片选择列表、金币/魅力标注、数量选择
- sendFlower 控制器方法：按 gift_id 查找礼物、扣金币、加魅力、广播消息
- 聊天消息渲染支持显示礼物图片（含弹跳动画效果）
- 后台可在 gifts 表中管理花卉类型（名称、图标、图片、金币、魅力、排序、启禁用）

app/Http/Controllers/ChatController.php

@@ -17,8 +17,10 @@ use App\Events\UserLeft;
 use App\Http\Requests\SendMessageRequest;
 use App\Jobs\SaveMessageJob;
 use App\Models\Autoact;
+use App\Models\Gift;
 use App\Models\Room;
 use App\Models\Sysparam;
+use App\Models\User;
 use App\Services\ChatStateService;
 use App\Services\MessageFilterService;
 use App\Services\VipService;
@@ -433,6 +435,99 @@ class ChatController extends Controller
         ]);
     }
 
+    /**
+     * 送花/礼物：消耗金币给目标用户增加魅力值
+     *
+     * 根据 gift_id 查找 gifts 表中的礼物类型，读取对应的金币消耗和魅力增量。
+     * 送花成功后在聊天室广播带图片的消息。
+     */
+    public function sendFlower(Request $request): JsonResponse
+    {
+        $request->validate([
+            'to_user' => 'required|string',
+            'room_id' => 'required|integer',
+            'gift_id' => 'required|integer',
+            'count' => 'sometimes|integer|min:1|max:99',
+        ]);
+
+        $user = Auth::user();
+        if (! $user) {
+            return response()->json(['status' => 'error', 'message' => '请先登录'], 401);
+        }
+
+        $toUsername = $request->input('to_user');
+        $roomId = $request->input('room_id');
+        $giftId = $request->integer('gift_id');
+        $count = $request->integer('count', 1);
+
+        // 不能给自己送花
+        if ($toUsername === $user->username) {
+            return response()->json(['status' => 'error', 'message' => '不能给自己送花哦～']);
+        }
+
+        // 查找礼物类型
+        $gift = Gift::where('id', $giftId)->where('is_active', true)->first();
+        if (! $gift) {
+            return response()->json(['status' => 'error', 'message' => '礼物不存在或已下架']);
+        }
+
+        // 查找目标用户
+        $toUser = User::where('username', $toUsername)->first();
+        if (! $toUser) {
+            return response()->json(['status' => 'error', 'message' => '用户不存在']);
+        }
+
+        $totalCost = $gift->cost * $count;
+        $totalCharm = $gift->charm * $count;
+
+        // 检查金币余额
+        if (($user->jjb ?? 0) < $totalCost) {
+            return response()->json([
+                'status' => 'error',
+                'message' => "金币不足！送 {$count} 份【{$gift->name}】需要 {$totalCost} 金币，您当前有 ".($user->jjb ?? 0).' 枚。',
+            ]);
+        }
+
+        // 扣除金币、增加对方魅力
+        $user->jjb = ($user->jjb ?? 0) - $totalCost;
+        $user->save();
+
+        $toUser->meili = ($toUser->meili ?? 0) + $totalCharm;
+        $toUser->save();
+
+        // 构建礼物图片 URL
+        $giftImageUrl = $gift->image ? "/images/gifts/{$gift->image}" : '';
+
+        // 广播送花消息（含图片标记，前端识别后渲染图片）
+        $countText = $count > 1 ? " {$count} 份" : '';
+        $sysMsg = [
+            'id' => $this->chatState->nextMessageId($roomId),
+            'room_id' => $roomId,
+            'from_user' => '系统传音',
+            'to_user' => '大家',
+            'content' => "{$gift->emoji} {$user->username} 向 {$toUsername} 送出了{$countText}【{$gift->name}】！魅力 +{$totalCharm}！",
+            'is_secret' => false,
+            'font_color' => '#e91e8f',
+            'action' => '',
+            'sent_at' => now()->toDateTimeString(),
+            'gift_image' => $giftImageUrl,
+            'gift_name' => $gift->name,
+        ];
+
+        $this->chatState->pushMessage($roomId, $sysMsg);
+        broadcast(new MessageSent($roomId, $sysMsg));
+        SaveMessageJob::dispatch($sysMsg);
+
+        return response()->json([
+            'status' => 'success',
+            'message' => "送花成功！花费 {$totalCost} 金币，{$toUsername} 魅力 +{$totalCharm}",
+            'data' => [
+                'my_jjb' => $user->jjb,
+                'target_charm' => $toUser->meili,
+            ],
+        ]);
+    }
+
     /**
      * 解析奖励数值配置（支持固定值或范围格式）
      *

app/Models/Gift.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * 文件功能：礼物/鲜花模型
+ * 存储各种礼物的名称、图标、金币消耗、魅力增量等信息。
+ * 后台可完整 CRUD 管理，前端名片弹窗中展示可送的礼物列表。
+ *
+ * @author   ChatRoom Laravel
+ *
+ * @version  1.0.0
+ */
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Gift extends Model
+{
+    /** @var string 表名 */
+    protected $table = 'gifts';
+
+    /** @var array 可批量赋值字段 */
+    protected $fillable = [
+        'name',
+        'emoji',
+        'image',
+        'cost',
+        'charm',
+        'sort_order',
+        'is_active',
+    ];
+
+    /** @var array 类型转换 */
+    protected $casts = [
+        'cost' => 'integer',
+        'charm' => 'integer',
+        'sort_order' => 'integer',
+        'is_active' => 'boolean',
+    ];
+
+    /**
+     * 获取所有启用的礼物列表（按排序字段排列）
+     *
+     * @return \Illuminate\Database\Eloquent\Collection
+     */
+    public static function activeList()
+    {
+        return static::where('is_active', true)
+            ->orderBy('sort_order')
+            ->orderBy('cost')
+            ->get();
+    }
+}