feat: plugin controller config system with guest_comm_config hook integration

- Add HasPluginConfig trait and PluginController base class
- Integrate guest_comm_config hook in CommController for plugin frontend config injection
- Add user creation functionality to UserService and fix null value handling
- Enhance AbstractPlugin.getConfig() with key parameter support
- Multiple service layer optimizations and architecture improvements

app/Traits/HasPluginConfig.php

@@ -0,0 +1,129 @@
+<?php
+
+namespace App\Traits;
+
+use App\Models\Plugin;
+use Illuminate\Support\Facades\Cache;
+
+trait HasPluginConfig
+{
+    /**
+     * 缓存的插件配置
+     */
+    protected ?array $pluginConfig = null;
+
+    /**
+     * 插件代码
+     */
+    protected ?string $pluginCode = null;
+
+    /**
+     * 获取插件配置
+     */
+    public function getConfig(?string $key = null, $default = null): mixed
+    {
+        $config = $this->getPluginConfig();
+        
+        if ($key) {
+            return $config[$key] ?? $default;
+        }
+        
+        return $config;
+    }
+
+    /**
+     * 获取完整的插件配置
+     */
+    protected function getPluginConfig(): array
+    {
+        if ($this->pluginConfig === null) {
+            $pluginCode = $this->getPluginCode();
+
+            \Log::channel('daily')->info('Telegram Login: 获取插件配置', [
+                'plugin_code' => $pluginCode
+            ]);
+
+            $this->pluginConfig = Cache::remember(
+                "plugin_config_{$pluginCode}",
+                3600,
+                function () use ($pluginCode) {
+                    $plugin = Plugin::where('code', $pluginCode)
+                        ->where('is_enabled', true)
+                        ->first();
+
+                    if (!$plugin || !$plugin->config) {
+                        return [];
+                    }
+
+                    return json_decode($plugin->config, true) ?? [];
+                }
+            );
+        }
+
+        return $this->pluginConfig;
+    }
+
+    /**
+     * 获取插件代码
+     */
+    public function getPluginCode(): string
+    {
+        if ($this->pluginCode === null) {
+            $this->pluginCode = $this->autoDetectPluginCode();
+        }
+
+        return $this->pluginCode;
+    }
+
+    /**
+     * 设置插件代码（如果自动检测不准确可以手动设置）
+     */
+    public function setPluginCode(string $pluginCode): void
+    {
+        $this->pluginCode = $pluginCode;
+        $this->pluginConfig = null; // 重置配置缓存
+    }
+
+    /**
+     * 自动检测插件代码
+     */
+    protected function autoDetectPluginCode(): string
+    {
+        $reflection = new \ReflectionClass($this);
+        $namespace = $reflection->getNamespaceName();
+        
+        // 从命名空间提取插件代码
+        // 例如: Plugin\TelegramLogin\Controllers => telegram_login
+        if (preg_match('/^Plugin\\\\(.+?)\\\\/', $namespace, $matches)) {
+            return $this->convertToKebabCase($matches[1]);
+        }
+        
+        throw new \RuntimeException('Unable to detect plugin code from namespace: ' . $namespace);
+    }
+
+    /**
+     * 将 StudlyCase 转换为 kebab-case
+     */
+    protected function convertToKebabCase(string $string): string
+    {
+        return strtolower(preg_replace('/([a-z])([A-Z])/', '$1_$2', $string));
+    }
+
+    /**
+     * 检查插件是否启用
+     */
+    public function isPluginEnabled(): bool
+    {
+        return (bool) $this->getConfig('enable', false);
+    }
+
+    /**
+     * 清除插件配置缓存
+     */
+    public function clearConfigCache(): void
+    {
+        $pluginCode = $this->getPluginCode();
+        Cache::forget("plugin_config_{$pluginCode}");
+        $this->pluginConfig = null;
+    }
+}