diff --git a/.gitea/workflows/build_RC.yml b/.gitea/workflows/build_RC.yml
index 15cb53df..c0709781 100644
--- a/.gitea/workflows/build_RC.yml
+++ b/.gitea/workflows/build_RC.yml
@@ -106,11 +106,6 @@ jobs:
           provenance: false
           sbom: false
 
-      - name: Temporarily update userfront nginx port
-        run: |
-          sed -i 's/listen 5000;/listen 80;/g' userfront/nginx.conf
-          sed -i 's/proxy_pass http:\/\/baron_backend:3000;/proxy_pass http:\/\/baron_backend:3010;/g' userfront/nginx.conf
-
       - name: Build and push userfront RC image
         uses: docker/build-push-action@v5
         with:
diff --git a/.gitea/workflows/staging_release.yml b/.gitea/workflows/staging_release.yml
index 8b0632c2..0f272c64 100644
--- a/.gitea/workflows/staging_release.yml
+++ b/.gitea/workflows/staging_release.yml
@@ -45,26 +45,35 @@ jobs:
 
           # Sanity check
           if [ -z "${STAGE_USER}" ] || [ -z "${STAGE_HOST}" ] || [ -z "${DEPLOY_PATH}" ]; then
-            echo "::error::Missing required vars (STAGE_USER/STAGE_HOST/DEPLOY_PATH). Check Gitea repo variables."
+            echo "::error::Missing required vars (STAGE_USER/STAGE_HOST/DEPLOY_PATH)."
             exit 1
           fi
 
           ssh-keyscan -H "${STAGE_HOST}" >> ~/.ssh/known_hosts
-
           ssh "${STAGE_USER}@${STAGE_HOST}" "mkdir -p '${DEPLOY_PATH}'"
 
-          # Create .env for Staging using a HEREDOC to prevent shell expansion issues
+          # .env 파일 생성
           cat <<'EOF' > .env
-          APP_ENV=stage
+          APP_ENV=${{ vars.APP_ENV }}
           TZ=Asia/Seoul
           IDP_PROVIDER=ory
+
+          # DB & Clickhouse
           DB_PORT=${{ vars.DB_PORT }}
           CLICKHOUSE_PORT_HTTP=${{ vars.CLICKHOUSE_PORT_HTTP }}
           CLICKHOUSE_PORT_NATIVE=${{ vars.CLICKHOUSE_PORT_NATIVE }}
+          CLICKHOUSE_HOST=${{ vars.CLICKHOUSE_HOST }}
+          CLICKHOUSE_USER=${{ vars.CLICKHOUSE_USER }}
+          CLICKHOUSE_PASSWORD=${{ vars.CLICKHOUSE_PASSWORD }}
+
+
           BACKEND_PORT=${{ vars.BACKEND_PORT }}
           ADMINFRONT_PORT=${{ vars.ADMINFRONT_PORT }}
           DEVFRONT_PORT=${{ vars.DEVFRONT_PORT }}
           USERFRONT_PORT=${{ vars.USERFRONT_PORT }}
+          
+          OATHKEEPER_API_URL=${{ vars.OATHKEEPER_API_URL }}
+
           DB_USER=${{ vars.DB_USER }}
           DB_PASSWORD=${{ secrets.STG_DB_PASSWORD }}
           DB_NAME=${{ vars.DB_NAME }}
@@ -117,20 +126,29 @@ jobs:
           OATHKEEPER_HEALTH_ENABLED=${{ vars.OATHKEEPER_HEALTH_ENABLED }}
           CSRF_COOKIE_NAME=${{ vars.CSRF_COOKIE_NAME }}
           CSRF_COOKIE_SECRET=${{ secrets.STG_CSRF_COOKIE_SECRET }}
-          OATHKEEPER_INTROSPECT_CLIENT_ID=${{ vars.OATHKEEPER_INTROSPECT_CLIENT_ID }}
-          OATHKEEPER_INTROSPECT_CLIENT_SECRET=${{ secrets.STG_OATHKEEPER_INTROSPECT_CLIENT_SECRET }}
+          # OATHKEEPER_INTROSPECT_CLIENT_ID=${{ vars.OATHKEEPER_INTROSPECT_CLIENT_ID }}
+          # OATHKEEPER_INTROSPECT_CLIENT_SECRET=${{ secrets.STG_OATHKEEPER_INTROSPECT_CLIENT_SECRET }}
           EOF
 
-          # Copy artifacts to remote
-          # Using compose.infra.yaml as base for staging (assuming simplified structure compared to prod)
-          # OR use docker-compose.template.yaml if staging follows prod structure strictly
+          # 파일 복사
+          ssh "${STAGE_USER}@${STAGE_HOST}" "mkdir -p ${DEPLOY_PATH}/docker"
+          
+          # [중요] docker/ory 폴더 복사 (여기에 init-db/1-createdb.sql이 있어야 함)
+          scp -r docker/ory "${STAGE_USER}@${STAGE_HOST}:${DEPLOY_PATH}/docker/"
+          
+          if [ -d "docker/init-metadata" ]; then
+            scp -r docker/init-metadata "${STAGE_USER}@${STAGE_HOST}:${DEPLOY_PATH}/docker/"
+          fi
+          
+          if [ -d "gateway" ]; then
+             scp -r gateway "${STAGE_USER}@${STAGE_HOST}:${DEPLOY_PATH}/"
+          fi
+
           scp docker/docker-compose.staging.template.yaml .env "${STAGE_USER}@${STAGE_HOST}:${DEPLOY_PATH}/"
           scp docker/compose.infra.yaml "${STAGE_USER}@${STAGE_HOST}:${DEPLOY_PATH}/compose.infra.yml"
-          # Ory compose files might be needed too
           scp docker/compose.ory.yaml "${STAGE_USER}@${STAGE_HOST}:${DEPLOY_PATH}/compose.ory.yml"
-          scp -r docker/ory "${STAGE_USER}@${STAGE_HOST}:${DEPLOY_PATH}/docker/"
 
-          # Deploy
+          # 배포 실행
           echo "${HARBOR_ROBOT_KEY}" | ssh "${STAGE_USER}@${STAGE_HOST}" \
             "export DEPLOY_PATH='${DEPLOY_PATH}'; \
              export BACKEND_IMAGE_NAME='${BACKEND_IMAGE_NAME}'; \
@@ -140,18 +158,33 @@ jobs:
              export IMAGE_TAG='${IMAGE_TAG}'; \
              export HARBOR_ENDPOINT='${HARBOR_ENDPOINT}'; \
              export HARBOR_ROBOT_ACCOUNT='${HARBOR_ROBOT_ACCOUNT}'; \
-             set -e; \
              cd \"\${DEPLOY_PATH}\"; \
              docker login \"\${HARBOR_ENDPOINT}\" -u \"\${HARBOR_ROBOT_ACCOUNT}\" --password-stdin; \
-             set -a; \
-             . ./.env; \
-             set +a; \
-            for net in baron_net public_net ory-net hydranet kratosnet; do
-              docker network inspect "\$net" >/dev/null 2>&1 || docker network create "\$net"
-            done
-             # Assuming template usage similar to prod
+             set -a; . ./.env; set +a; \
+             
+             # 네트워크 생성
+             for net in baron_net public_net ory-net hydranet kratosnet; do
+               docker network inspect \"\$net\" >/dev/null 2>&1 || docker network create \"\$net\"
+             done
+             
              envsubst < docker-compose.staging.template.yaml > docker-compose.yml; \
-             # Pull & Up
-             # Assuming staging runs both infra, ory, and app stack
+
+             # [중요] 설정 파일 권한 문제 해결 (Ory 이미지는 root가 아닌 사용자로 실행됨)
+             chmod -R 777 docker/ory
+             
              docker compose -f compose.infra.yml -f compose.ory.yml -f docker-compose.yml pull; \
-             docker compose -f compose.infra.yml -f compose.ory.yml -f docker-compose.yml up -d"
+             
+             # [주의] DB 초기화 스크립트는 '새로운 볼륨'에서만 실행됨. 
+             # DB 초기화 문제를 확실히 해결하기 위해 기존 볼륨을 날리고 다시 띄움 (데이터 삭제됨 주의)
+             # 스테이징이므로 초기화 진행. 데이터 보존이 필요하면 이 줄 제거하고 수동으로 DB 만들어야 함.
+             docker compose -f compose.infra.yml -f compose.ory.yml -f docker-compose.yml down -v || true
+             
+             docker compose -f compose.infra.yml -f compose.ory.yml -f docker-compose.yml up -d --remove-orphans; \
+             
+             # 배포 후 상태 확인 (실패 시 로그 출력을 위함)
+             sleep 10; \
+             if [ \$(docker inspect -f '{{.State.ExitCode}}' baron-sso-staging-kratos-migrate-1) -ne 0 ]; then \
+                echo 'Kratos Migrate Failed. Logs:'; \
+                docker logs baron-sso-staging-kratos-migrate-1; \
+                exit 1; \
+             fi"
\ No newline at end of file
diff --git a/docker/compose.ory.yaml b/docker/compose.ory.yaml
index 4c8a508f..7b58b802 100644
--- a/docker/compose.ory.yaml
+++ b/docker/compose.ory.yaml
@@ -31,7 +31,7 @@ services:
       - KRATOS_SELFSERVICE_ALLOWED_RETURN_URLS='["${KRATOS_UI_URL:-http://localhost:5000}","${USERFRONT_URL:-http://localhost:5000}"]'
     volumes:
       - ./docker/ory/kratos:/etc/config/kratos
-    command: migrate sql -c /etc/config/kratos/kratos.yml --yes
+    command: migrate sql up -e -c /etc/config/kratos/kratos.yml --yes
     depends_on:
       postgres_ory:
         condition: service_healthy
@@ -62,7 +62,7 @@ services:
     image: oryd/hydra:${HYDRA_VERSION:-v25.4.0}
     environment:
       - DSN=postgres://${ORY_POSTGRES_USER}:${ORY_POSTGRES_PASSWORD}@postgres_ory:5432/${HYDRA_DB:-ory_hydra}?sslmode=disable&max_conns=20
-    command: migrate sql -e --yes
+    command: migrate sql up -e --yes
     depends_on:
       postgres_ory:
         condition: service_healthy
@@ -74,10 +74,10 @@ services:
     container_name: ory_hydra
     environment:
       - DSN=postgres://${ORY_POSTGRES_USER}:${ORY_POSTGRES_PASSWORD}@postgres_ory:5432/${HYDRA_DB:-ory_hydra}?sslmode=disable&max_conns=20
-      - URLS_SELF_ISSUER="${USERFRONT_URL:-http://localhost:5000}/oidc"
-      - URLS_LOGIN="${USERFRONT_URL:-http://localhost:5000}/login"
-      - URLS_CONSENT="${USERFRONT_URL:-http://localhost:5000}/consent"
-      - SECRETS_SYSTEM="${ORY_POSTGRES_PASSWORD}"
+      - URLS_SELF_ISSUER=${USERFRONT_URL:-http://localhost:5000}/oidc
+      - URLS_LOGIN=${USERFRONT_URL:-http://localhost:5000}/login
+      - URLS_CONSENT=${USERFRONT_URL:-http://localhost:5000}/consent
+      - SECRETS_SYSTEM=${ORY_POSTGRES_PASSWORD}
     volumes:
       - ./docker/ory/hydra:/etc/config/hydra
     command: serve -c /etc/config/hydra/hydra.yml all --dev
@@ -88,6 +88,31 @@ services:
       - ory-net
       - hydranet
 
+  # [수정됨] Oathkeeper 서비스 추가 (Backend 연결 문제 해결)
+  oathkeeper:
+    image: oryd/oathkeeper:${OATHKEEPER_VERSION:-v0.40.6}
+    container_name: oathkeeper
+    restart: unless-stopped
+    depends_on:
+      kratos:
+        condition: service_started
+    environment:
+      - LOG_LEVEL=debug
+    command: serve proxy --config /etc/config/oathkeeper/oathkeeper.yml
+    volumes:
+      - ./docker/ory/oathkeeper:/etc/config/oathkeeper
+    networks:
+      - ory-net
+      - baron_net  # Backend가 통신하기 위해 필수
+      - public_net
+    ports:
+      - "4455:4455" # Proxy
+      - "4456:4456" # API (Backend 헬스체크용)
+    healthcheck:
+      test: ["CMD", "wget", "-qO-", "http://127.0.0.1:4456/health/ready"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
 volumes:
   ory_postgres_data:
 
@@ -104,3 +129,7 @@ networks:
   public_net:
     external: true
     name: public_net
+  # [수정됨] Baron Net 추가 정의 (Oathkeeper 연결용)
+  baron_net:
+    external: true
+    name: baron_net
\ No newline at end of file
diff --git a/docker/docker-compose.staging.template.yaml b/docker/docker-compose.staging.template.yaml
index 9ec87368..e23578c5 100644
--- a/docker/docker-compose.staging.template.yaml
+++ b/docker/docker-compose.staging.template.yaml
@@ -2,41 +2,32 @@ name: baron-sso-staging
 
 services:
   backend:
-    image: ${BACKEND_IMAGE_NAME}:${IMAGE_TAG}
-    container_name: baron_backend
-    restart: unless-stopped
-    env_file:
-      - .env
-    environment:
-      - APP_ENV=stage
-      - GO_ENV=stage
-      - COOKIE_SECRET="${COOKIE_SECRET}"
-      - DB_HOST=postgres
-      - CLICKHOUSE_HOST=clickhouse
-      - CLICKHOUSE_PORT="${CLICKHOUSE_PORT_NATIVE:-9000}"
-      - CLICKHOUSE_USER="${CLICKHOUSE_USER:-baron}"
-      - CLICKHOUSE_PASSWORD="${CLICKHOUSE_PASSWORD:-password}"
-      - USERFRONT_URL="${USERFRONT_URL:-https://sso.hmac.kr}"
-      - REDIS_ADDR="${REDIS_ADDR:-redis:6389}"
-      - IDP_PROVIDER=ory
-      - KRATOS_ADMIN_URL="${KRATOS_ADMIN_URL:-http://ory_kratos:4434}"
-      - HYDRA_ADMIN_URL="${HYDRA_ADMIN_URL:-http://ory_hydra:4445}"
-      - HYDRA_PUBLIC_URL="${HYDRA_PUBLIC_URL:-http://ory_hydra:4444}"
-      - PROFILE_CACHE_TTL="${PROFILE_CACHE_TTL:-30m}"
-    ports:
-      - "${BACKEND_PORT:-3000}:3000"
-    depends_on:
-      infra_check:
-        condition: service_started
-    networks:
-      - baron_net
-      - ory-net
-    healthcheck:
-      test: ["CMD", "wget", "-qO-", "http://127.0.0.1:3000/health"]
-      interval: 10s
-      timeout: 5s
-      retries: 3
-      start_period: 10s
+      image: ${BACKEND_IMAGE_NAME}:${IMAGE_TAG}
+      container_name: baron_backend
+      restart: unless-stopped
+      env_file:
+        - .env
+      environment:
+        - DB_HOST=baron_postgres
+        - IDP_PROVIDER=ory
+        - OATHKEEPER_API_URL=http://oathkeeper:4456 
+        - PROFILE_CACHE_TTL="${PROFILE_CACHE_TTL:-30m}"
+      ports:
+        - "${BACKEND_PORT:-3000}:3000"
+      depends_on:
+        oathkeeper:
+          condition: service_healthy
+        infra_check:
+          condition: service_started
+      networks:
+        - baron_net
+        - ory-net
+      healthcheck:
+        test: ["CMD", "wget", "-qO-", "http://127.0.0.1:3000/health"]
+        interval: 10s
+        timeout: 5s
+        retries: 10
+        start_period: 60s
 
   adminfront:
     image: ${ADMINFRONT_IMAGE_NAME}:${IMAGE_TAG}
@@ -84,8 +75,8 @@ services:
         condition: service_healthy
     command: >
       /bin/sh -c "mkdir -p /usr/share/nginx/html/assets &&
-                  echo \"BACKEND_URL=$${BACKEND_URL}\" >> /usr/share/nginx/html/assets/.env &&
-                  echo \"USERFRONT_URL=$${USERFRONT_URL}\" >> /usr/share/nginx/html/assets/.env &&
+                  echo \"BACKEND_URL=${BACKEND_URL}\" >> /usr/share/nginx/html/assets/.env &&
+                  echo \"USERFRONT_URL=${USERFRONT_URL}\" >> /usr/share/nginx/html/assets/.env &&
                   echo \"APP_ENV=stage\" >> /usr/share/nginx/html/assets/.env &&
                   cp /usr/share/nginx/html/assets/.env /usr/share/nginx/html/.env &&
                   nginx -g 'daemon off;'"
@@ -93,8 +84,8 @@ services:
       test: ["CMD", "wget", "-qO-", "http://127.0.0.1:5000/"]
       interval: 10s
       timeout: 5s
-      retries: 3
-      start_period: 10s
+      retries: 5
+      start_period: 30s
 
   infra_check:
     image: alpine
@@ -111,4 +102,4 @@ networks:
     name: ory-net
   public_net:
     external: true
-    name: public_net
\ No newline at end of file
+    name: public_net
diff --git a/userfront/lib/core/services/auth_proxy_service.dart b/userfront/lib/core/services/auth_proxy_service.dart
index d5178f06..50658953 100644
--- a/userfront/lib/core/services/auth_proxy_service.dart
+++ b/userfront/lib/core/services/auth_proxy_service.dart
@@ -13,7 +13,11 @@ class AuthProxyService {
     return dotenv.env[key] ?? fallback;
   }
 
-  static String get _baseUrl => _envOrDefault('BACKEND_URL', 'https://sso.hmac.kr');
+  static String get _baseUrl {
+    final rawUrl = _envOrDefault('BACKEND_URL', 'https://sso.hmac.kr');
+    // 배포 환경에서 $ 기호나 공백이 섞여 들어오는 경우를 방지하기 위해 정제합니다.
+    return rawUrl.replaceAll(r'$', '').trim().replaceAll(RegExp(r'/$'), '');
+  }
   static bool get _isProd {
     final env = _envOrDefault('APP_ENV', 'dev').toLowerCase();
     return env == 'prod' || env == 'production';