fix(orchestrator): encrypt OpenClaw provider tokens at rest

apps/orchestrator/src/api/agent-providers/agent-providers.module.ts

@@ -1,12 +1,13 @@
 import { Module } from "@nestjs/common";
 import { PrismaModule } from "../../prisma/prisma.module";
 import { OrchestratorApiKeyGuard } from "../../common/guards/api-key.guard";
+import { EncryptionService } from "../../security/encryption.service";
 import { AgentProvidersController } from "./agent-providers.controller";
 import { AgentProvidersService } from "./agent-providers.service";
 
 @Module({
   imports: [PrismaModule],
   controllers: [AgentProvidersController],
-  providers: [OrchestratorApiKeyGuard, AgentProvidersService],
+  providers: [OrchestratorApiKeyGuard, EncryptionService, AgentProvidersService],
 })
 export class AgentProvidersModule {}