[codex] Add draft DSR theory operational kernel artifact

[dochabski]

Summary

• Adds artifacts/ policy for nested draft artifact packages developed inside dsr-framework before a standalone repository or release decision.
• Imports the current DSR theory operational synthesis as artifacts/dsr-theory-operational-kernel/, including concept inventory, competency questions, ontology, SHACL shapes, SKOS vocabulary, JSON Schema, and authoring templates.
• Adds retained local source-basis, validation, and concept-to-ontology coverage records for the draft artifact package.
• Updates README, manifest, package inventory, and retained validation summary so the new files are controlled and inventoried.

Validation

• python scripts/validate-package.py --write-summary -> pass, 0 errors, 0 warnings, inventory 174/174
• python scripts/validate-package.py --release-candidate --write-summary -> pass, 0 errors, 0 warnings, inventory 174/174
• git diff --check -> pass

Conformance impact

• Host package remains 1.0.2_stable with l4_reusable_stable conformance.
• The imported DSR theory operational kernel is a nested draft artifact package with l2_reviewable_draft posture.
• No new L5 archival/publication-ready claim is introduced.
• No new release or tag is created by this PR.

Review notes

The concept-to-ontology coverage record explicitly retains current draft gaps: 26 class identifiers, 22 object-property identifiers, and 12 datatype-property identifiers from the concept inventory are not yet represented by ontology identifiers. The package is controlled and parseable, but those gaps should be repaired or dispositioned before stronger ontology-completeness or standalone release claims.

[dochabski]

Updated the PR with a second commit, 5c2a0c4, that closes the concept-inventory to ontology identifier coverage gaps.

Additional validation:

• Local Turtle parse: ontology 3307 triples, SHACL 1132 triples, SKOS 11097 triples.
• Coverage record now reports 98/98 classes, 52/52 object properties, 34/34 datatype properties, and 23/23 controlled vocabularies represented by identifier.
• Nonstandard SHACL target/path gaps are now 0.
• python scripts/validate-package.py --write-summary -> pass, 0 errors, 0 warnings, inventory 174/174.
• python scripts/validate-package.py --release-candidate --write-summary -> pass, 0 errors, 0 warnings, inventory 174/174.
• git diff --check -> pass.

The kernel remains a nested draft artifact package: this improves reviewability and semantic consistency, but it still does not claim independent semantic review, empirical downstream utility, standalone stable release, or L5 archival/publication-ready status.