added simple sanitizer methods for nodes and realtionships

[gajazlikovac]

Description

Cypher code was breaking if "-" was in the name of relation. Same with non-ASCII characters.
Added simple sanitiser for relationship and node names.
New node and relation names follow neo4j convention (UPPERCASE and PascalCase, respectively)

Fixes #3020

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Manually tested. Try imputing the prompts form the issue above and log the results. :)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

Maintainer Checklist

• closes Relation contains hyphens #3020
• Made sure Checks passed

[CLAassistant]

All committers have signed the CLA.

[akshat1423]

Hey! Thanks for your contribution.

I have noticed that the _remove_spaces_from_entities function now includes additional sanitization logic like title-casing node labels and upper-casing relationships (via _sanitize_node_label and _sanitize_relationship_type).

This introduces a few concerns:

Breaking change risk: We currently store and match entity names using lowercase with underscores (e.g., customer_account). Changing this format might cause entity mismatches or duplicate nodes in Neo4j.

Inconsistent mapping: The entity_type_map and various Cypher queries assume the previous normalized format, and updating one side without the other could lead to silent failures.

Would you mind reverting to the original space-to-underscore normalization for now and possibly exploring a safer transition plan separately?

[gajazlikovac]

Hey @akshat1423,
I did not know that. Thanks for the info. I will ignore the neo4j naming convention for now.
This means the the pr will include only one sanitiser function, to get rid of hyphens and non-ASCII chars.

The space to _ will stay.

You can expect the the new pr soon.
Thanks,
Stefan

[parshvadaftari]

Looks good. Thank you for the contributions.