diff --git a/.github/workflows/build-push-ecr.yml b/.github/workflows/build-push-ecr.yml
deleted file mode 100644
index c514981..0000000
--- a/.github/workflows/build-push-ecr.yml
+++ /dev/null
@@ -1,186 +0,0 @@
-name: Build and Push to ECR
-
-on:
-  workflow_dispatch:
-
-permissions:
-  id-token: write
-  contents: read
-
-jobs:
-  validate:
-    name: Validation & Security
-    if: github.ref == 'refs/heads/main'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Source Code
-        uses: actions/checkout@v4
-
-      - name: Set up Node.js Environment
-        uses: actions/setup-node@v4
-        with:
-          node-version: '24'
-          cache: 'npm'
-
-      - name: Authenticate to AWS
-        uses: aws-actions/configure-aws-credentials@v4
-        with:
-          role-to-assume: ${{ secrets.AWS_CI_ROLE_ARN }}
-          aws-region: ap-southeast-1
-
-      - name: Get SSM Parameters - Key Value Pairs
-        id: ssm-param
-        uses: Armadillidiid/ssm-get-parameters-action@v1
-        with:
-          by-path: true
-          secret: /durianpy/cms/prod/
-          with-decryption: true
-          mask-values: true
-          recursive: true
-
-      - name: Install Project Dependencies
-        run: npm ci --legacy-peer-deps
-
-      - name: Static Analysis (NPM Vulnerability Scan)
-        uses: aquasecurity/trivy-action@a9c7b0f06e461e9d4b4d1711f154ee024b8d7ab8 # v0.36.0
-        with:
-          scan-type: 'fs'
-          scan-ref: '.'
-          format: 'table'
-          output: 'trivy-fs-report.txt'
-          severity: 'CRITICAL,HIGH'
-
-      - name: Publish FS Scan to Summary
-        if: always()
-        run: |
-          echo "### 🛡️ Filesystem Security Scan" >> $GITHUB_STEP_SUMMARY
-          if [ -s trivy-fs-report.txt ]; then
-            echo "\`\`\`text" >> $GITHUB_STEP_SUMMARY
-            cat trivy-fs-report.txt >> $GITHUB_STEP_SUMMARY
-            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
-          else
-            echo "No high/critical vulnerabilities found." >> $GITHUB_STEP_SUMMARY
-          fi
-
-      - name: Lint Codebase
-        run: npm run lint
-
-      - name: Execute Integration Tests
-        env:
-          PAYLOAD_SECRET: ${{ steps.ssm-param.outputs.PAYLOAD_SECRET }}
-          DATABASE_URL: ${{ steps.ssm-param.outputs.DATABASE_URL }}
-        run: npm run test:int
-
-  deploy:
-    name: Build & Production Deploy
-    needs: validate
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Source Code
-        uses: actions/checkout@v4
-
-      - name: Authenticate to AWS
-        uses: aws-actions/configure-aws-credentials@v4
-        with:
-          role-to-assume: ${{ secrets.AWS_CI_ROLE_ARN }}
-          aws-region: ap-southeast-1
-
-      - name: Login to Amazon ECR
-        id: login-ecr
-        uses: aws-actions/amazon-ecr-login@v2
-
-      - name: Set up Node.js Environment
-        uses: actions/setup-node@v4
-        with:
-          node-version: '24'
-          cache: 'npm'
-
-      - name: Get SSM Parameters for Deployment
-        id: ssm-param
-        uses: Armadillidiid/ssm-get-parameters-action@v1
-        with:
-          by-path: true
-          secret: /durianpy/cms/prod/
-          with-decryption: true
-          mask-values: true
-          recursive: true
-
-      - name: Install Dependencies and Build
-        env:
-          ENVIRONMENT: 'production'
-          PAYLOAD_SECRET: ${{ steps.ssm-param.outputs.PAYLOAD_SECRET }}
-          DATABASE_URL: ${{ steps.ssm-param.outputs.DATABASE_URL }}
-          NEXT_PUBLIC_SERVER_URL: ${{ steps.ssm-param.outputs.NEXT_PUBLIC_SERVER_URL }}
-          CLOUDFRONT_DISTRIBUTION_DOMAIN: ${{ steps.ssm-param.outputs.CLOUDFRONT_DISTRIBUTION_DOMAIN }}
-        run: |
-          npm ci --legacy-peer-deps
-          npm run build
-
-      - name: Sync Static Assets to S3
-        run: |
-          aws s3 sync .next/static s3://${{ steps.ssm-param.outputs.S3_BUCKET }}/artifacts/_next/static --delete
-          aws s3 sync public s3://${{ steps.ssm-param.outputs.S3_BUCKET }}/public --delete
-
-      - name: Fetch Lambda Layer URL
-        id: layer-url
-        run: |
-          LAYER_URL=$(aws lambda get-layer-version-by-arn --arn arn:aws:lambda:ap-southeast-1:044395824272:layer:AWS-Parameters-and-Secrets-Lambda-Extension:61 --query 'Content.Location' --output text)
-          echo "url=$LAYER_URL" >> $GITHUB_OUTPUT
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Build Image
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          file: docker/lambda/Dockerfile
-          load: true
-          tags: |
-            ${{ steps.login-ecr.outputs.registry }}/durianpy-cms-prod:${{ github.sha }}
-          secrets: |
-            payload_secret=${{ steps.ssm-param.outputs.PAYLOAD_SECRET }}
-            database_url=${{ steps.ssm-param.outputs.DATABASE_URL }}
-            cloudfront_domain=${{ steps.ssm-param.outputs.CLOUDFRONT_DISTRIBUTION_DOMAIN }}
-            s3_bucket=${{ steps.ssm-param.outputs.S3_BUCKET }}
-            next_public_server_url=${{ steps.ssm-param.outputs.NEXT_PUBLIC_SERVER_URL }}
-          build-args: |
-            LAYER_URL=${{ steps.layer-url.outputs.url }}
-            AWS_DEFAULT_REGION=ap-southeast-1
-            ENVIRONMENT=production
-
-      - name: Image Scan (Container Check)
-        uses: aquasecurity/trivy-action@a9c7b0f06e461e9d4b4d1711f154ee024b8d7ab8 # v0.36.0
-        with:
-          image-ref: ${{ steps.login-ecr.outputs.registry }}/durianpy-cms-prod:${{ github.sha }}
-          format: 'table'
-          output: 'trivy-image-report.txt'
-          severity: 'CRITICAL,HIGH'
-          exit-code: '0' # Temporarily allow build to pass even if vulnerabilities are found, but report them.
-
-      - name: Push Image
-        if: success()
-        run: |
-          docker push ${{ steps.login-ecr.outputs.registry }}/durianpy-cms-prod:${{ github.sha }}
-
-      - name: Summarize Build and Scan
-        if: always()
-        run: |
-          echo "### 🚢 Deployment Summary" >> $GITHUB_STEP_SUMMARY
-          echo "Image: \`${{ steps.login-ecr.outputs.registry }}/durianpy-cms-prod:${{ github.sha }}\`" >> $GITHUB_STEP_SUMMARY
-
-          echo "### 🛡️ Container Image Scan" >> $GITHUB_STEP_SUMMARY
-          if [ -s trivy-image-report.txt ]; then
-            echo "\`\`\`text" >> $GITHUB_STEP_SUMMARY
-            cat trivy-image-report.txt >> $GITHUB_STEP_SUMMARY
-            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
-          else
-            echo "No high/critical vulnerabilities found." >> $GITHUB_STEP_SUMMARY
-          fi
-
-      - name: Deploy to AWS Lambda
-        if: success()
-        run: |
-          aws lambda update-function-code \
-            --function-name durianpy-cms-prod \
-            --image-uri ${{ steps.login-ecr.outputs.registry }}/durianpy-cms-prod:${{ github.sha }}