fix(docker): shared 심링크 /usr/shared 추가 — routes depth 3 대응

routes/ 하위 파일에서 ../../../shared/는 /usr/shared를 참조.
기존 /usr/src/shared 심링크만으로 부족. /usr/shared 추가.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

system1-factory/api/Dockerfile

@@ -15,7 +15,7 @@ RUN apk add --no-cache --virtual .build-deps python3 make g++ && \
 COPY system1-factory/api/ ./
 
 # shared 모듈 심링크 (routes에서 ../../../shared/ 경로 호환)
-RUN ln -s /usr/src/app/shared /usr/src/shared
+RUN ln -s /usr/src/app/shared /usr/src/shared && ln -s /usr/src/app/shared /usr/shared
 
 # 로그/업로드 디렉토리 생성
 RUN mkdir -p logs uploads/issues uploads/equipments uploads/purchase_requests

system2-report/api/Dockerfile

@@ -12,7 +12,7 @@ RUN npm install --omit=dev
 
 COPY system2-report/api/ ./
 
-RUN ln -s /usr/src/app/shared /usr/src/shared
+RUN ln -s /usr/src/app/shared /usr/src/shared && ln -s /usr/src/app/shared /usr/shared
 RUN mkdir -p logs uploads
 RUN chown -R node:node /usr/src/app
 USER node

tksupport/api/Dockerfile

@@ -9,7 +9,7 @@ RUN npm install --omit=dev
 
 COPY tksupport/api/ ./
 
-RUN ln -s /usr/src/app/shared /usr/src/shared
+RUN ln -s /usr/src/app/shared /usr/src/shared && ln -s /usr/src/app/shared /usr/shared
 RUN chown -R node:node /usr/src/app
 USER node
 

user-management/api/Dockerfile

@@ -10,7 +10,7 @@ RUN npm install --omit=dev
 COPY user-management/api/ ./
 COPY user-management/migrations/ /usr/src/migrations/
 
-RUN ln -s /usr/src/app/shared /usr/src/shared
+RUN ln -s /usr/src/app/shared /usr/src/shared && ln -s /usr/src/app/shared /usr/shared
 RUN mkdir -p /usr/src/app/uploads/consumables && \
     chown -R node:node /usr/src/app /usr/src/migrations
 USER node