feat: Added DQL Metadata like scannedBytes to execute_dql tool

[christian-kreuzberger-dtx]

The goal is to alert the user when too many data are queried via execute_dql.

For now, we are logging and returning scanned bytes from the API, which the user can also find via DQL:

fetch dt.system.events
| filter event.kind == "QUERY_EXECUTION_EVENT" and contains(client.client_context, "dynatrace-mcp")
| fields timestamp, query_id, query_string, scanned_bytes, table, bucket, user.id, user.email, client.client_context
| sort timestamp desc

The result in the tool call:

[MrManny]

Left some minor notes, but nothing dramatic.

[Copilot]

Pull Request Overview

This PR enhances the execute_dql tool to provide detailed metadata about query execution, particularly focusing on cost tracking through scanned bytes information. The changes aim to help users understand and monitor their Dynatrace consumption when executing DQL queries.

Key Changes:

• Enhanced DQL execution response to include metadata like scanned bytes, records, execution time, and sampling information
• Added user-friendly formatting with cost warnings based on data usage thresholds
• Updated all DQL-consuming functions to work with the new response structure that includes both records and metadata

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/capabilities/execute-dql.ts	Core enhancement adding metadata extraction, logging, and new return type structure
src/index.ts	Updated execute_dql tool to format metadata nicely and handle new response structure; fixed list-problems tool
src/capabilities/list-vulnerabilities.ts	Updated to access records from new response structure
src/capabilities/get-monitored-entity-details.ts	Updated to access records from new response structure
src/capabilities/find-monitored-entity-by-name.ts	Updated to access records from new response structure
integration-tests/execute-dql.integration.test.ts	Updated tests to validate new response structure and metadata fields
README.md	Enhanced cost documentation with query for tracking usage
CHANGELOG.md	Added entry for the new metadata feature