Add exact-identity target storage adapter

crates/remora-target/src/lib.rs

@@ -0,0 +1,27 @@
+//! Target storage adapter (WP-08).
+//!
+//! OpenDAL-backed create-only attempt objects, multipart recovery, exact
+//! identity reads and deletes, independent SHA-256, version retention, and
+//! exact time-limited access against S3-compatible target stores.
+
+mod body;
+mod config;
+mod digest;
+mod error;
+mod identity;
+mod multipart;
+mod store;
+
+pub use body::{OpenDalTargetBody, StoredWrite};
+pub use config::TargetStoreConfig;
+pub use digest::{ContentSha256, hash_bytes, sha256_equal};
+pub use error::TargetError;
+pub use identity::{
+    CompletedPart, MultipartIdentity, ObjectIdentity, REMORA_SHA256_METADATA_KEY,
+    RESERVED_NAMESPACE_SEGMENT, attempt_manifest_key, attempt_object_key, is_reserved_key,
+    validate_attempt_key,
+};
+pub use store::{
+    CreateObjectRequest, MultipartSession, ObjectMetadata, StoredObject, TargetStore,
+    TimeLimitedAccess, finish_create_only,
+};