first (part 3: src directory)

src/modules/gemini/gemini.config.ts

@@ -0,0 +1,7 @@
+import { registerAs } from '@nestjs/config';
+
+export const geminiConfig = registerAs('gemini', () => ({
+  enabled: process.env.ENABLE_GEMINI === 'true',
+  apiKey: process.env.GOOGLE_API_KEY,
+  defaultModel: process.env.GEMINI_MODEL || 'gemini-2.5-flash',
+}));