feat(backend): Add configuration file for GEMINI API integration

core/config.py

@@ -0,0 +1,14 @@
+# app/core/config.py
+import os
+from dotenv import load_dotenv
+import google.generativeai as genai
+
+load_dotenv()
+
+GEMINI_API_KEY = os.getenv("GEMINI_API_KEY")
+
+if GEMINI_API_KEY:
+    genai.configure(api_key=GEMINI_API_KEY) # type: ignore
+    GEMINI_MODEL = genai.GenerativeModel("gemini-2.5-flash") # type: ignore
+else:
+    raise ValueError("Missing GEMINI_API_KEY in .env file")