fix: 수정된 API 키 파일 경로 및 오류 메시지 개선

Author: WoongheeLee

commitgen/config.py

@@ -3,9 +3,9 @@
 import yaml
 
 def load_api_key():
-    path = os.path.join(os.getcwd(), ".api_keys", "openai.json")
+    path = os.path.join(os.path.expanduser("~/.api_keys"), "openai.json")
     if not os.path.exists(path):
-        raise FileNotFoundError("❌ API key file not found: .api_keys/openai.json")
+        raise FileNotFoundError(f"❌ API key file not found: {path}")
     with open(path, "r") as f:
         data = json.load(f) 
         return data["api_key"]
@@ -16,4 +16,4 @@ def load_prompt_template(path: str = './prompt_template.yml'):
         raise FileNotFoundError(f"❌ Prompt template not found: {path}")
     with open(path, "r", encoding='utf-8') as f:
         config = yaml.safe_load(f)
-        return config['commit_format'], config['commit_type']
+        return config['commit_format'], config['commit_type']