feat: implement heal subsystem for automatic data repair

- Add heal module with core types (HealType, HealRequest, HealTask)
- Implement HealManager for task scheduling and execution
- Add HealStorageAPI trait and ECStoreHealStorage implementation
- Integrate heal capabilities into scanner for automatic repair
- Support multiple heal types: object, bucket, disk, metadata, MRF, EC decode
- Add progress tracking and event system for heal operations
- Merge heal and scanner error types for unified error handling
- Include comprehensive logging and metrics for heal operations

Signed-off-by: junxiang Mu <1948535941@qq.com>

crates/ahm/src/heal/progress.rs

@@ -0,0 +1,141 @@
+// Copyright 2024 RustFS Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use serde::{Deserialize, Serialize};
+use std::time::SystemTime;
+
+#[derive(Debug, Default, Clone, Serialize, Deserialize)]
+pub struct HealProgress {
+    /// 已扫描对象数
+    pub objects_scanned: u64,
+    /// 已修复对象数
+    pub objects_healed: u64,
+    /// 修复失败对象数
+    pub objects_failed: u64,
+    /// 已处理字节数
+    pub bytes_processed: u64,
+    /// 当前处理的对象
+    pub current_object: Option<String>,
+    /// 进度百分比
+    pub progress_percentage: f64,
+    /// 开始时间
+    pub start_time: Option<SystemTime>,
+    /// 最后更新时间
+    pub last_update_time: Option<SystemTime>,
+    /// 预计完成时间
+    pub estimated_completion_time: Option<SystemTime>,
+}
+
+impl HealProgress {
+    pub fn new() -> Self {
+        Self {
+            start_time: Some(SystemTime::now()),
+            last_update_time: Some(SystemTime::now()),
+            ..Default::default()
+        }
+    }
+
+    pub fn update_progress(&mut self, scanned: u64, healed: u64, failed: u64, bytes: u64) {
+        self.objects_scanned = scanned;
+        self.objects_healed = healed;
+        self.objects_failed = failed;
+        self.bytes_processed = bytes;
+        self.last_update_time = Some(SystemTime::now());
+
+        // 计算进度百分比
+        let total = scanned + healed + failed;
+        if total > 0 {
+            self.progress_percentage = (healed as f64 / total as f64) * 100.0;
+        }
+    }
+
+    pub fn set_current_object(&mut self, object: Option<String>) {
+        self.current_object = object;
+        self.last_update_time = Some(SystemTime::now());
+    }
+
+    pub fn is_completed(&self) -> bool {
+        self.progress_percentage >= 100.0 || self.objects_scanned > 0 && self.objects_healed + self.objects_failed >= self.objects_scanned
+    }
+
+    pub fn get_success_rate(&self) -> f64 {
+        let total = self.objects_healed + self.objects_failed;
+        if total > 0 {
+            (self.objects_healed as f64 / total as f64) * 100.0
+        } else {
+            0.0
+        }
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct HealStatistics {
+    /// 总 heal 任务数
+    pub total_tasks: u64,
+    /// 成功完成的任务数
+    pub successful_tasks: u64,
+    /// 失败的任务数
+    pub failed_tasks: u64,
+    /// 正在运行的任务数
+    pub running_tasks: u64,
+    /// 总修复对象数
+    pub total_objects_healed: u64,
+    /// 总修复字节数
+    pub total_bytes_healed: u64,
+    /// 最后更新时间
+    pub last_update_time: SystemTime,
+}
+
+impl HealStatistics {
+    pub fn new() -> Self {
+        Self {
+            total_tasks: 0,
+            successful_tasks: 0,
+            failed_tasks: 0,
+            running_tasks: 0,
+            total_objects_healed: 0,
+            total_bytes_healed: 0,
+            last_update_time: SystemTime::now(),
+        }
+    }
+
+    pub fn update_task_completion(&mut self, success: bool) {
+        if success {
+            self.successful_tasks += 1;
+        } else {
+            self.failed_tasks += 1;
+        }
+        self.last_update_time = SystemTime::now();
+    }
+
+    pub fn update_running_tasks(&mut self, count: u64) {
+        self.running_tasks = count;
+        self.last_update_time = SystemTime::now();
+    }
+
+    pub fn add_healed_objects(&mut self, count: u64, bytes: u64) {
+        self.total_objects_healed += count;
+        self.total_bytes_healed += bytes;
+        self.last_update_time = SystemTime::now();
+    }
+
+    pub fn get_success_rate(&self) -> f64 {
+        let total = self.successful_tasks + self.failed_tasks;
+        if total > 0 {
+            (self.successful_tasks as f64 / total as f64) * 100.0
+        } else {
+            0.0
+        }
+    }
+}