fix(infra): resolve CORS error and Nginx 502 Bad Gateway

- Update Hydra and Kratos CORS config to specify allowed origins explicitly instead of using wildcard with allow_credentials: true
- Fix Nginx upstream resolution for Oathkeeper to use correct container hostname (ory_oathkeeper)

docker/ory/hydra/hydra.yml

@@ -7,7 +7,15 @@ serve:
         cors:
             enabled: true
             allowed_origins:
-                - "*"
+                - http://localhost:5173
+                - http://localhost:5174
+                - http://localhost:5175
+                - http://localhost:5000
+                - https://ssologin.hmac.kr
+                - https://sso-test.hmac.kr
+                - https://app.brsw.kr
+                - https://sss.hmac.kr
+                - https://sso.hmac.kr
             allowed_methods:
                 - POST
                 - GET
@@ -37,7 +45,15 @@ serve:
         cors:
             enabled: true
             allowed_origins:
-                - "*"
+                - http://localhost:5173
+                - http://localhost:5174
+                - http://localhost:5175
+                - http://localhost:5000
+                - https://ssologin.hmac.kr
+                - https://sso-test.hmac.kr
+                - https://app.brsw.kr
+                - https://sss.hmac.kr
+                - https://sso.hmac.kr
             allowed_methods:
                 - POST
                 - GET