feat(clickhouse): add support for ClickHouse Cloud Query API integration

[pedrofrxncx]

• Introduced ClickHouseQueryApiConfig for authentication using OpenAPI keys.
• Updated monitoring engines to support both URL-based and Query API configurations.
• Enhanced settings to include new ClickHouse service ID, key ID, and key secret.
• Modified rollup table creation to utilize Query API when configured, ensuring backward compatibility with existing deployments.

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• PR title is clear and descriptive
• Changes are tested and working
• Documentation is updated (if needed)
• No breaking changes

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Summary by cubic

Adds ClickHouse Cloud Query API support for monitoring using OpenAPI keys, with automatic fallback to the existing URL client. Existing deployments keep working; Query API is used only when configured.

• New Features

  • Added ClickHouseQueryApiEngine and resolveClickHouseQueryApiConfig for OpenAPI key auth.
  • Query API takes precedence when configured; otherwise use URL client; otherwise DuckDB.
  • Rollup DDL runs via Query API when set, else via @clickhouse/client.
  • New settings/env vars: CLICKHOUSE_SERVICE_ID, CLICKHOUSE_KEY_ID, CLICKHOUSE_KEY_SECRET.

• Migration

  • No breaking changes.
  • To use the Query API, set CLICKHOUSE_SERVICE_ID, CLICKHOUSE_KEY_ID, and CLICKHOUSE_KEY_SECRET (you may keep or omit CLICKHOUSE_URL).
  • The key needs DDL rights to create rollups; otherwise queries fall back to the raw table automatically.

^{Written for commit 7ddec45. Summary will update on new commits.}

Review in cubic

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Suggested: Minor (2.368.0) — based on feat: prefix

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🚀	Major	3.0.0

Current version: 2.367.31

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