v0.6.1

Release v0.6.1: MIF Spec Migration, Version Rewrite

Changed

• [MIF Spec Migration]: Replaced MIF git submodule with canonical mif-spec.dev schemas
  • Removed mif git submodule and .gitmodules
  • Bundled fallback ontologies are now the primary source (no submodule required)
  • All schema $id and schema_url references updated to https://mif-spec.dev/schema/
  • OntologyLoader resolution order simplified: bundled fallback -> user -> project
  • OntologyLoader exposes MIF_SCHEMA_URL and ONTOLOGY_SCHEMA_URL class constants

Removed

• [MIF Submodule]: Git submodule mif (https://github.com/zircote/MIF.git)
• [populate_fallback.py]: Obsolete script for copying from submodule to fallback