[FEATURE] Tool development for Search Alerts Tool

[minalsha]

Is your feature request related to a problem?
Agent framework (#1161 ) needs tools to extend functionality. This issue propose to add search monitor and alert tools to it.

Get alerts: read information on
1. most recently triggered alerts
2. other alerts related to that alert by time, service attributes, or infrastructure tags or severity
3. historical trends on that alert and similar alerts
4. any unusual trends in the system behavior as reflected in anomalies or spikes/troughs
5. root cause of the system behavior that generated the alert

What solution would you like?

Agent framework (#1161 ) will provide a general tool framework. We can build search monitor/alerts tools with that framework.

1. Build against the Tool interface on the agent_framework_dev branch: https://github.com/opensearch-project/ml-commons/blob/feature/agent_framework_dev/spi/src/main/java/org/opensearch/ml/common/spi/tools/Tool.java
2. Review example tools in the Agent Framework POC commit: 1b85cff where there are 6 tools under ml-algorithms/src/main/java/org/opensearch/ml/engine/tools/. A good example is the CatIndices tool: https://github.com/opensearch-project/ml-commons/blob/feature/agent_framework_dev/ml-algorithms/src/main/java/org/opensearch/ml/engine/tools/CatIndexTool.java which shows how to use the NodeClient (IndicesAdminClient) to fetch Cluster Health statistics.
3. Implement a similar tool using OpenSearch search functionality for Alerts by index, time, service attributes, and infrastructure tabs

What alternatives have you considered?
N/A

Do you have any additional context?
N/A

[ohltyler]

Closed via #1629