实现AlarmRuleService告警规则服务

- AlarmRuleService使用内存存储实现CRUD操作
- 实现GetAllAlarmRulesAsync、CreateAlarmRuleAsync等方法
- 修正AlarmRule属性名匹配
- dotnet build 0 Error

Haoliang.Core/Services/StubServices.cs

@@ -596,13 +596,62 @@ namespace Haoliang.Core.Services
 
     public class AlarmRuleService : IAlarmRuleService
     {
-        public Task<IEnumerable<AlarmRule>> GetAllAlarmRulesAsync() => Task.FromResult<IEnumerable<AlarmRule>>(new List<AlarmRule>());
-        public Task<AlarmRule?> GetAlarmRuleByIdAsync(int ruleId) => Task.FromResult<AlarmRule?>(null);
-        public Task<AlarmRule> CreateAlarmRuleAsync(AlarmRule rule) => Task.FromResult(rule);
-        public Task<AlarmRule?> UpdateAlarmRuleAsync(int ruleId, AlarmRule rule) => Task.FromResult<AlarmRule?>(null);
-        public Task<bool> DeleteAlarmRuleAsync(int ruleId) => Task.FromResult(false);
+        private static readonly List<AlarmRule> _rules = new List<AlarmRule>();
+        private static int _nextId = 1;
+        
+        public Task<IEnumerable<AlarmRule>> GetAllAlarmRulesAsync() => Task.FromResult<IEnumerable<AlarmRule>>(_rules);
+        
+        public Task<AlarmRule?> GetAlarmRuleByIdAsync(int ruleId)
+        {
+            var rule = _rules.FirstOrDefault(r => r.Id == ruleId);
+            return Task.FromResult(rule);
+        }
+        
+        public Task<AlarmRule> CreateAlarmRuleAsync(AlarmRule rule)
+        {
+            rule.Id = _nextId++;
+            rule.CreatedAt = DateTime.Now;
+            rule.UpdatedAt = DateTime.Now;
+            _rules.Add(rule);
+            return Task.FromResult(rule);
+        }
+        
+        public Task<AlarmRule?> UpdateAlarmRuleAsync(int ruleId, AlarmRule rule)
+        {
+            var existing = _rules.FirstOrDefault(r => r.Id == ruleId);
+            if (existing == null) return Task.FromResult<AlarmRule?>(null);
+            
+            existing.RuleName = rule.RuleName;
+            existing.Condition = rule.Condition;
+            existing.AlarmType = rule.AlarmType;
+            existing.AlarmLevel = rule.AlarmLevel;
+            existing.IsEnabled = rule.IsEnabled;
+            existing.DeviceId = rule.DeviceId;
+            existing.UpdatedAt = DateTime.Now;
+            
+            return Task.FromResult<AlarmRule?>(existing);
+        }
+        
+        public Task<bool> DeleteAlarmRuleAsync(int ruleId)
+        {
+            var rule = _rules.FirstOrDefault(r => r.Id == ruleId);
+            if (rule == null) return Task.FromResult(false);
+            
+            _rules.Remove(rule);
+            return Task.FromResult(true);
+        }
+        
         public Task TestAlarmRuleAsync(int ruleId) => Task.CompletedTask;
-        public Task SetAlarmRuleEnabledAsync(int ruleId, bool enabled) => Task.CompletedTask;
+        public Task SetAlarmRuleEnabledAsync(int ruleId, bool enabled)
+        {
+            var rule = _rules.FirstOrDefault(r => r.Id == ruleId);
+            if (rule != null)
+            {
+                rule.IsEnabled = enabled;
+                rule.UpdatedAt = DateTime.Now;
+            }
+            return Task.CompletedTask;
+        }
     }
 
     public class AlarmNotificationService : IAlarmNotificationService