Adding tools: delete-entity and execute-entity

[souvikghosh04]

Why make this change?

Note: This PR is work in progress. Description and other details will be updated with more details.

• Reference associated issue using # syntax. e.g. Closes #XX
  • delete-record: [Enh]: Add DML tool: delete_entity #2830
  • execute-entity: [Enh]: Add DML tool: execute_entity #2831

What is this change?

This PR implements built-int tools delete-entity and execute-entity as part of built-in tools to support delete operation and execution of stored procedures.

How was this tested?

Functional testing using Insomnia client by running DAB in localhost and local SQL DB database

• MCP endpoint: http://localhost:5000/mcp
• JSON payload (details below)
• Querying and validating data in local database
• TODO: Test in MCP clients and MCP inspector

Sample Request(s)

• delete-record

POST: http://localhost:5000/mcp

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "delete-record",
    "arguments": {
      "entityName": "Book",
      "primaryKey": {
        "id": 5003
      }
    }
  },
  "id": 1
}

• execute-entity

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "execute-entity",
    "arguments": {
      "entityName": "GetBook",
      "parameters": {
				"id": 5
			}
    }
  },
  "id": 2
}


{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "execute-entity",
    "arguments": {
      "entityName": "UpdateBookTitle",
      "parameters": {
				"id": 5,
				"title": "Vampire Diaries"
			}
    }
  },
  "id": 5
}