特性：增加创始人专享的在线 SMTP 配置系统并在 AppServiceProvider 中动态加载以拦截系统发件

app/Http/Controllers/Admin/SmtpController.php

@@ -0,0 +1,84 @@
+<?php
+
+/**
+ * 文件功能：系统邮件 SMTP 专属配置控制器
+ *
+ * @author   ChatRoom Laravel
+ *
+ * @version  1.0.0
+ */
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\SysParam;
+use App\Services\ChatStateService;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Mail;
+use Illuminate\View\View;
+
+class SmtpController extends Controller
+{
+    public function __construct(
+        private readonly ChatStateService $chatState
+    ) {}
+
+    /**
+     * 显示 SMTP 专属配置表单
+     */
+    public function edit(): View
+    {
+        // 仅抓取以 smtp_ 开头的配置项
+        $params = SysParam::where('alias', 'like', 'smtp_%')->pluck('body', 'alias')->toArray();
+        $descriptions = SysParam::where('alias', 'like', 'smtp_%')->pluck('guidetxt', 'alias')->toArray();
+
+        return view('admin.smtp.edit', compact('params', 'descriptions'));
+    }
+
+    /**
+     * 更新 SMTP 配置，并刷新全站 Cache 缓存
+     */
+    public function update(Request $request): RedirectResponse
+    {
+        $data = $request->except(['_token', '_method']);
+
+        foreach ($data as $alias => $body) {
+            SysParam::updateOrCreate(
+                ['alias' => $alias],
+                ['body' => $body ?? '']
+            );
+
+            // 写入 Cache 保证极速读取
+            $this->chatState->setSysParam($alias, $body ?? '');
+
+            // 清除 Sysparam 模型的内部缓存
+            SysParam::clearCache($alias);
+        }
+
+        return redirect()->route('admin.smtp.edit')->with('success', 'SMTP 发信配置已成功保存更新！');
+    }
+
+    /**
+     * 发送测试邮件
+     */
+    public function test(Request $request): RedirectResponse
+    {
+        $request->validate([
+            'test_email' => 'required|email'
+        ]);
+
+        $testEmail = $request->input('test_email');
+
+        try {
+            Mail::raw('您好，这是一封来自【飘落流星聊天室】系统的测试邮件，当您看到这封邮件，说明系统后台您的 SMTP 设置已经完全畅通无误。', function ($message) use ($testEmail) {
+                $message->to($testEmail)
+                    ->subject('飘落流星聊天室 - SMTP 发信测试');
+            });
+
+            return redirect()->route('admin.smtp.edit')->with('success', "测试邮件已成功发送至 {$testEmail}，请注意查收。");
+        } catch (\Exception $e) {
+            return redirect()->route('admin.smtp.edit')->with('error', "测试发出失败，原因：" . $e->getMessage());
+        }
+    }
+}

app/Http/Controllers/Admin/SystemController.php

@@ -31,10 +31,12 @@ class SystemController extends Controller
     {
         // 读取数据库中最新的参数 (剔除专属模块已接管的配置，避免重复显示)
         $params = SysParam::whereNotIn('alias', ['chatbot_enabled'])
+            ->where('alias', 'not like', 'smtp_%')
             ->get()->pluck('body', 'alias')->toArray();
 
         // 为后台界面准备的文案对照 (可动态化或硬编码)
         $descriptions = SysParam::whereNotIn('alias', ['chatbot_enabled'])
+            ->where('alias', 'not like', 'smtp_%')
             ->get()->pluck('guidetxt', 'alias')->toArray();
 
         return view('admin.system.edit', compact('params', 'descriptions'));