Document Neo4j logging schema

[omribz156]

What changed

Added the missing technology/neo4j/neo4j-logging-schema.adoc page referenced from the Neo4j technology index and navigation.

The new page summarizes the Neo4j logging graph for pipelines, workflows, execution hierarchy, the Neo4j Get Logging Info transform, and the richer Neo4j execution information location graph.

Why

The existing Neo4j docs and navigation link to neo4j-logging-schema.adoc, but that page is missing. This closes the broken documentation target and gives users a source-backed overview of the nodes and relationships Hop writes to Neo4j.

Fixes #7095.

Verification

• Checked the new page has the standard Apache license header.
• Checked all xrefs added by the page resolve to existing documentation pages in the repository.
• Ran git diff --cached --check before committing.
• Did not run mvn clean install apache-rat:check; this is a focused docs-only change and a full Hop build is larger than needed for the page addition.

This was implemented with Codex assistance, with the patch manually reviewed and kept to the missing documentation page.

---

Thank you for your contribution! Follow this checklist to help us incorporate your contribution quickly and easily:

• Run mvn clean install apache-rat:check to make sure basic checks pass. A more thorough check will be performed on your pull request automatically.
• If you have a group of commits related to the same change, please squash your commits into one and force push your branch using git rebase -i.
• Mention the appropriate issue in your description (for example: addresses #123), if applicable.

To make clear that you license your contribution under the Apache License Version 2.0, January 2004
you have to acknowledge this by using the following check-box.

• I hereby declare this contribution to be licensed under the Apache License Version 2.0, January 2004
• In any other case, please file an Apache Individual Contributor License Agreement.