fix(deploy): resolve frontend deployment failure by fixing workspace detection and dependency installation

devfront/Dockerfile

@@ -9,11 +9,12 @@ ENV CI=true
 RUN corepack enable && corepack prepare pnpm@10.5.2 --activate
 
 # Copy workspace configs and common package
+COPY pnpm-workspace.yaml pnpm-lock.yaml ./
 COPY common ./common
 COPY devfront ./devfront
 
 # Install dependencies for the workspace
-RUN cd common && pnpm install --no-frozen-lockfile --ignore-scripts
+RUN pnpm install --filter devfront... --filter baron-sso... --no-frozen-lockfile --ignore-scripts
 
 # 프로덕션 서빙을 위한 serve 패키지 글로벌 설치
 RUN npm install -g serve