fix: register directory-loaded library files with OntoEnv

_load_shapes_from_directory loaded every file in a library directory
straight into the shape collection's graph via Oxigraph's native
loader, but never told OntoEnv these ontologies exist. Any owl:imports
referencing them - e.g. mediumOffice_constraints.ttl importing
urn:ashrae/g36, which guideline36.ttl declares - couldn't be resolved
by name, so OntoEnv fell back to treating the import as a relative
file path and failed with "No such file or directory".

Register each file with the ontology environment alongside the
existing bulk graph load. Files without their own owl:Ontology header
(guideline36's per-equipment fragments) just get a harmless synthetic
name; files that do declare an identity (Brick's imports/*.ttl, which
import each other) become resolvable the same way single-file
Library.load(ontology_graph=...) already registers them.

Verified: without this change, missing_imports() on a graph importing
urn:ashrae/g36 reports it as missing after loading the guideline36
directory; with it, the import resolves.

Author: gtfierro

buildingmotif/dataclasses/library.py

@@ -376,6 +376,18 @@ def _load_shapes_from_directory(
                     f"Could not parse file {filename}: {e}"
                 )
                 raise e
+            # Register the file with OntoEnv under its own declared name (if
+            # any), independent of the bulk load above. Directory-loaded
+            # libraries often bundle several files that only make sense
+            # merged (e.g. guideline36's per-equipment fragments have no
+            # owl:Ontology header of their own), alongside files that
+            # declare a real ontology identity and import each other or
+            # ontologies outside the directory (e.g. Brick's imports/*.ttl).
+            # Without this, those names are never known to OntoEnv, so any
+            # owl:imports referencing them - from inside or outside this
+            # directory - fails to resolve instead of finding the
+            # already-loaded content.
+            bm.ontology_environment.add(filename, fetch_imports=False, overwrite=True)
         # Native loading does not propagate file prefixes to the rdflib
         # namespace manager; restore the standard BuildingMOTIF prefixes so
         # serialization stays readable.