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

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

infospace/agent/briefs/scheme-practice-pattern.md

@@ -0,0 +1,32 @@
+---
+id: agent-brief/scheme-practice-pattern
+artifact_id: scheme/practice-pattern
+source_path: patterns/PracticePatternScheme.md
+source_kind: practice-pattern-scheme
+generated: true
+---
+
+<!-- GENERATED by info_tech_canon; do not edit by hand. -->
+
+# Agent Brief: PracticePattern Scheme
+
+- Artifact ID: `scheme/practice-pattern`
+- Kind: `practice-pattern-scheme`
+- Canonical path: `patterns/PracticePatternScheme.md`
+- Full source: `patterns/PracticePatternScheme.md`
+- Summary: Contract for canon PracticePattern artifacts: PracticePattern Scheme.
+
+## Retrieval Hints
+
+Imports and anchors:
+- `kernel/itc-core`
+
+## Owned Concepts
+
+- `PatternLanguage`
+- `PracticePattern`
+- `PracticePattern Scheme`
+
+## Related Distinctions
+
+No common distinction is anchored directly on this artifact.