feat(admin): LLM config, knowledge base, and WeCom AI binding

Add owner-scoped model API settings, uploadable knowledge bases, and WeCom bot AI/KB wiring with OpenAI-compatible URL normalization.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/dukang-api/src/integrations/wecom/wecom-aibot.service.ts

@@ -12,6 +12,7 @@ import {
 } from '@dukang/shared-types';
 import { PrismaService } from '../../common/prisma/prisma.module';
 import { WecomBotActionsService } from './wecom-bot-actions.service';
+import { WecomBotAiService } from './wecom-bot-ai.service';
 import type { WecomBotRuntimeConfig } from './wecom-bot.types';
 
 const DEFAULT_WELCOMES: Record<WecomBotRole, string> = {
@@ -62,6 +63,7 @@ export class WecomAibotService implements OnModuleInit, OnModuleDestroy {
   constructor(
     private readonly prisma: PrismaService,
     private readonly actions: WecomBotActionsService,
+    private readonly ai: WecomBotAiService,
   ) {}
 
   async onModuleInit() {
@@ -150,6 +152,9 @@ export class WecomAibotService implements OnModuleInit, OnModuleDestroy {
     avatarUrl: string | null;
     welcome: string | null;
     permissions: string;
+    aiEnabled: boolean;
+    llmConfigId: bigint | null;
+    knowledgeBaseId: bigint | null;
     enabled: boolean;
   }): WecomBotRuntimeConfig {
     const role = (isWecomRole(row.role) ? row.role : 'CUSTOM') as WecomBotRole;
@@ -164,6 +169,9 @@ export class WecomAibotService implements OnModuleInit, OnModuleDestroy {
       avatarUrl: row.avatarUrl,
       welcome: row.welcome?.trim() || DEFAULT_WELCOMES[role],
       permissions: resolveWecomBotPermissions(role, row.permissions),
+      aiEnabled: row.aiEnabled,
+      llmConfigId: row.llmConfigId?.toString() ?? null,
+      knowledgeBaseId: row.knowledgeBaseId?.toString() ?? null,
     };
   }
 
@@ -258,8 +266,24 @@ export class WecomAibotService implements OnModuleInit, OnModuleDestroy {
         await this.replyText(client, frame, this.formatStatusMarkdown());
         return;
       }
-      const reply = await this.actions.handleCommand(cfg, wecomUserId, content);
-      await this.replyText(client, frame, reply);
+      const useAi = cfg.aiEnabled && !!cfg.llmConfigId;
+      const reply = await this.actions.handleCommand(cfg, wecomUserId, content, {
+        skipNaturalFallback: useAi,
+      });
+      if (reply != null) {
+        await this.replyText(client, frame, reply);
+        return;
+      }
+      if (useAi) {
+        const aiReply = await this.ai.replyIfConfigured(cfg, content);
+        await this.replyText(
+          client,
+          frame,
+          aiReply ?? `未识别指令。\n\n${this.actions.buildHelp(cfg)}`,
+        );
+        return;
+      }
+      await this.replyText(client, frame, `未识别指令。\n\n${this.actions.buildHelp(cfg)}`);
     } catch (e) {
       const msg = e instanceof Error ? e.message : String(e);
       this.logger.error(`[${cfg.key}] handle text failed: ${msg}`);