Add OCI DevOps build spec and CI/CD architecture docs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

build_spec.yaml

@@ -0,0 +1,52 @@
+version: 0.1
+component: build
+timeoutInSeconds: 1200
+runAs: root
+shell: bash
+
+env:
+  variables:
+    REGISTRY: "icn.ocir.io/idyhsdamac8c/tasteby"
+  exportedVariables:
+    - IMAGE_TAG
+    - BACKEND_IMAGE
+    - FRONTEND_IMAGE
+
+steps:
+  - type: Command
+    name: "Set image tag"
+    command: |
+      IMAGE_TAG="${OCI_BUILD_RUN_ID:0:8}-$(date +%Y%m%d%H%M)"
+      BACKEND_IMAGE="${REGISTRY}/backend:${IMAGE_TAG}"
+      FRONTEND_IMAGE="${REGISTRY}/frontend:${IMAGE_TAG}"
+      echo "IMAGE_TAG=${IMAGE_TAG}"
+      echo "BACKEND_IMAGE=${BACKEND_IMAGE}"
+      echo "FRONTEND_IMAGE=${FRONTEND_IMAGE}"
+
+  - type: Command
+    name: "Build backend image"
+    command: |
+      cd backend-java
+      docker build --platform linux/arm64 \
+        -t "${BACKEND_IMAGE}" \
+        -t "${REGISTRY}/backend:latest" \
+        .
+
+  - type: Command
+    name: "Build frontend image"
+    command: |
+      cd frontend
+      docker build --platform linux/arm64 \
+        --build-arg NEXT_PUBLIC_GOOGLE_MAPS_API_KEY="${NEXT_PUBLIC_GOOGLE_MAPS_API_KEY}" \
+        --build-arg NEXT_PUBLIC_GOOGLE_CLIENT_ID="${NEXT_PUBLIC_GOOGLE_CLIENT_ID}" \
+        -t "${FRONTEND_IMAGE}" \
+        -t "${REGISTRY}/frontend:latest" \
+        .
+
+outputArtifacts:
+  - name: backend-image
+    type: DOCKER_IMAGE
+    location: ${BACKEND_IMAGE}
+  - name: frontend-image
+    type: DOCKER_IMAGE
+    location: ${FRONTEND_IMAGE}