Add plugin WebUI extension page and API routing support

Introduces a plugin router registry for registering plugin-specific API routes, static resources, and extension pages. Updates the plugin manager and context to expose the router, and implements backend and frontend support for serving and displaying plugin extension pages in the WebUI. Also adds a demo extension page and static resource to the builtin plugin.

packages/napcat-onebot/network/plugin/manager.ts

@@ -8,6 +8,7 @@ import { IOB11NetworkAdapter } from '@/napcat-onebot/network/adapter';
 import { PluginConfig } from '@/napcat-onebot/config/config';
 import { NapCatConfig } from './config';
 import { PluginLoader } from './loader';
+import { PluginRouterRegistryImpl } from './router-registry';
 import {
   PluginEntry,
   PluginLogger,
@@ -24,6 +25,9 @@ export class OB11PluginManager extends IOB11NetworkAdapter<PluginConfig> impleme
   /** 插件注册表: ID -> 插件条目 */
   private plugins: Map<string, PluginEntry> = new Map();
 
+  /** 插件路由注册表: pluginId -> PluginRouterRegistry */
+  private pluginRouters: Map<string, PluginRouterRegistryImpl> = new Map();
+
   declare config: PluginConfig;
   public NapCatConfig = NapCatConfig;
 
@@ -183,6 +187,13 @@ export class OB11PluginManager extends IOB11NetworkAdapter<PluginConfig> impleme
       error: (...args: any[]) => coreLogger.logError(pluginPrefix, ...args),
     };
 
+    // 创建或获取插件路由注册器
+    let router = this.pluginRouters.get(entry.id);
+    if (!router) {
+      router = new PluginRouterRegistryImpl(entry.id, entry.pluginPath);
+      this.pluginRouters.set(entry.id, router);
+    }
+
     return {
       core: this.core,
       oneBot: this.obContext,
@@ -195,6 +206,7 @@ export class OB11PluginManager extends IOB11NetworkAdapter<PluginConfig> impleme
       adapterName: this.name,
       pluginManager: this,
       logger: pluginLogger,
+      router,
     };
   }
 
@@ -391,6 +403,20 @@ export class OB11PluginManager extends IOB11NetworkAdapter<PluginConfig> impleme
     return path.join(this.getPluginDataPath(pluginId), 'config.json');
   }
 
+  /**
+   * 获取插件路由注册器
+   */
+  public getPluginRouter (pluginId: string): PluginRouterRegistryImpl | undefined {
+    return this.pluginRouters.get(pluginId);
+  }
+
+  /**
+   * 获取所有插件路由注册器
+   */
+  public getAllPluginRouters (): Map<string, PluginRouterRegistryImpl> {
+    return this.pluginRouters;
+  }
+
   // ==================== 事件处理 ====================
 
   async onEvent<T extends OB11EmitEventContent> (event: T): Promise<void> {