SHACL template ontologies owl:imports themselves #10

Summary

The bundled SHACL templates declare their ontology as importing itself, which is a no-op
(and can send import-resolving loaders into a redundant self-fetch).

Where

# core/src/test/resources/shacl-templates/battery_pass_shacl.ttl:8-9
<http://example.org/battery-passport> a owl:Ontology ;
    owl:imports <http://example.org/battery-passport> .

Same pattern in:

• core/src/test/resources/shacl-templates/vehicle_shacl.ttl:9-10
• core/src/test/resources/shacl-templates/electronics_shacl.ttl:8-9
• api/rest/src/test/resources/shacl-templates/test-addition.ttl:8-9
• datastore/pgsql/src/test/resources/shacl-templates/test-addition.ttl:8-9

Suggested fix

Drop the self-referential owl:imports line from each template (or point it at a real
imported vocabulary if an import was intended).

Context

Spotted while building an implementer node against your suite. Happy to send a one-line PR if useful — just wanted to flag it separately from the
shapes contribution in #9.