feat: add S3-compatible storage interface (Layer 1)

.github/workflows/integration-tests.yml

@@ -146,9 +146,18 @@ jobs:
       - name: Run demo
         run: just demo
 
+      - name: Build file system client
+        run: cargo build --release -p file-system-client --examples
+
       - name: Run file system integration test
         run: just fs-demo-ci
 
+      - name: Build S3 client
+        run: cargo build --release -p s3-client --examples
+
+      - name: Run S3 integration test
+        run: just s3-demo-ci
+
       - name: Stop services
         if: always()
         run: |