Adiciona controller do Ollama e reestrutura arquitetura

src/modules/ollama/ollama.controller.spec.ts

@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { OllamaController } from './ollama.controller';
+
+describe('OllamaController', () => {
+  let controller: OllamaController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [OllamaController],
+    }).compile();
+
+    controller = module.get<OllamaController>(OllamaController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});