added storage library

backend/storage/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "storage"
+description = "Internal object storage library"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+aws-sdk-s3 = "1.94.0"
+aws-config = "1.8"
+azure_core = "0.25.0"
+azure_storage = "0.21.0"
+azure_storage_blobs = "0.21.0"
+async-trait = "0.1"
+tokio = { version = "1.0", features = ["full"] }
+thiserror = "2.0.12"