fix(neo4j): route queries to the configured database

[mehulp93]

Summary

Neo4jDriver.execute_query put database_ in Cypher parameters_, so the Neo4j client ignored it and every query ran against the connection's home database. This passes database_ as the client's routing keyword (per-call override, including None for the home database, otherwise self._database) and sends delete_all_indexes through the same path. Query error logs now record parameter names only.

Type of Change

• Bug fix
• New feature
• Performance improvement
• Documentation/Tests

Objective

N/A (bug fix): honor Neo4jDriver(..., database=...) for reads, writes via execute_query, and index deletion.

Testing

• Unit tests added/updated
• Integration tests added/updated
• All existing tests pass

Mocked routing tests in tests/driver/test_neo4j_driver_routing.py cover the configured database, per-call override, explicit None, default 'neo4j', and delete_all_indexes. pytest tests/driver/ passed; ruff and pyright are clean.

Breaking Changes

• This PR contains breaking changes

Checklist

• Code follows project style guidelines (make lint passes)
• Self-review completed
• Documentation updated where necessary
• No secrets or sensitive information committed

Related Issues

Closes #1481
Related: #798, #851, #354, #875

Made with Cursor