feat(ITC-WP-0016): establish PracticePattern language

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a025c2-407a-7a32-b40a-f37a52f03f62

tests/test_cli.py

@@ -11,7 +11,7 @@ def test_cli_inspect_emits_json(capsys) -> None:
     assert exit_code == 0
     payload = json.loads(capsys.readouterr().out)
     assert payload["ok"] is True
-    assert payload["infospace"]["artifact_count"] == 68
+    assert payload["infospace"]["artifact_count"] == 70
 
 
 def test_cli_missing_profile_uses_structured_error(capsys) -> None:

tests/test_service.py

@@ -5,6 +5,7 @@ from info_tech_canon.service import (
     generate_indexes,
     generate_tree,
     inspect_canon,
+    list_artifacts,
     list_models,
     list_standards,
     profile_graph,
@@ -24,7 +25,7 @@ def test_inspect_canon_counts_artifact_kinds() -> None:
 
     assert payload["ok"] is True
     assert payload["infospace"]["slug"] == "canon"
-    assert payload["infospace"]["artifact_count"] == 68
+    assert payload["infospace"]["artifact_count"] == 70
     assert payload["infospace"]["kinds"] == {
         "access-descriptor-set": 1,
         "alignment-review-kit": 1,
@@ -58,6 +59,8 @@ def test_inspect_canon_counts_artifact_kinds() -> None:
         "native-concept-map": 1,
         "pattern": 1,
         "practice": 1,
+        "practice-pattern": 1,
+        "practice-pattern-scheme": 1,
         "profile-alignment": 1,
         "profile": 1,
         "profile-artifact": 13,
@@ -96,17 +99,27 @@ def test_validate_canon_passes_scaffold() -> None:
     assert payload["ok"] is True
     assert payload["errors"] == []
     assert "warnings" in payload
-    assert payload["details"]["artifact_count"] == 68
+    assert payload["details"]["artifact_count"] == 70
 
 
 def test_graph_exports_relationship_summary() -> None:
     payload = artifact_graph()
 
     assert payload["ok"] is True
-    assert payload["graph"]["node_count"] == 68
+    assert payload["graph"]["node_count"] == 70
     assert payload["graph"]["edge_count"] > 15
 
 
+def test_interface_deprecation_strangler_is_a_registered_practice_pattern() -> None:
+    payload = list_artifacts(kind="practice-pattern")
+
+    assert payload["count"] == 1
+    pattern = payload["artifacts"][0]
+    assert pattern["id"] == "practice-pattern/interface-deprecation-strangler"
+    assert pattern["title"] == "InterfaceDeprecationStrangler"
+    assert pattern["path"] == "patterns/InterfaceDeprecationStrangler.md"
+
+
 def test_capability_review_joins_a_minimal_record(tmp_path) -> None:
     record = {
         "record_id": "test",