feat(storage): refactor audit and notification with OperationHelper (#825)

* improve code for audit

* improve code ecfs.rs

* improve code

* improve code for ecfs.rs

* feat(storage): refactor audit and notification with OperationHelper

This commit introduces a significant refactoring of the audit logging and event notification mechanisms within `ecfs.rs`.

The core of this change is the new `OperationHelper` struct, which encapsulates and simplifies the logic for both concerns. It replaces the previous `AuditHelper` and manual event dispatching.

Key improvements include:

- **Unified Handling**: `OperationHelper` manages both audit and notification builders, providing a single, consistent entry point for S3 operations.
- **RAII for Automation**: By leveraging the `Drop` trait, the helper automatically dispatches logs and notifications when it goes out of scope. This simplifies S3 method implementations and ensures cleanup even on early returns.
- **Fluent API**: A builder-like pattern with methods such as `.object()`, `.version_id()`, and `.suppress_event()` makes the code more readable and expressive.
- **Context-Aware Logic**: The helper's `.complete()` method intelligently populates log details based on the operation's `S3Result` and only triggers notifications on success.
- **Modular Design**: All helper logic is now isolated in `rustfs/src/storage/helper.rs`, improving separation of concerns and making `ecfs.rs` cleaner.

This refactoring significantly enhances code clarity, reduces boilerplate, and improves the robustness of logging and notification handling across the storage layer.

* fix

* fix

* fix

* fix

* fix

* fix

* fix

* improve code for audit and notify

* fix

* fix

* fix

Cargo.toml

@@ -123,7 +123,7 @@ tower-http = { version = "0.6.6", features = ["cors"] }
 
 # Serialization and Data Formats
 bytes = { version = "1.10.1", features = ["serde"] }
-bytesize = "2.1.0"
+bytesize = "2.2.0"
 byteorder = "1.5.0"
 flatbuffers = "25.9.23"
 form_urlencoded = "1.2.2"
@@ -226,7 +226,6 @@ rumqttc = { version = "0.25.0" }
 rust-embed = { version = "8.9.0" }
 rustc-hash = { version = "2.1.1" }
 s3s = { version = "0.12.0-rc.3", features = ["minio"] }
-scopeguard = "1.2.0"
 serial_test = "3.2.0"
 shadow-rs = { version = "1.4.0", default-features = false }
 siphasher = "1.0.1"
@@ -280,7 +279,7 @@ mimalloc = "0.1"
 
 
 [workspace.metadata.cargo-shear]
-ignored = ["rustfs", "rustfs-mcp", "tokio-test", "scopeguard"]
+ignored = ["rustfs", "rustfs-mcp", "tokio-test"]
 
 [profile.release]
 opt-level = 3