design-md-consolidation 3.4 nit: drop task-ref doc-comment prefix + align def-kind list with lowercase tags

crates/ailang-core/tests/design_schema_drift.rs

@@ -1,5 +1,4 @@
-//! Sweep 3 / Task 4: drift detection between ast.rs and `docs/DESIGN.md`
-//! §"Data model".
+//! Drift detection between ast.rs and `docs/DESIGN.md` §"Data model".
 //!
 //! DESIGN.md is the canonical schema source-of-truth. Every AST enum
 //! (`Term`, `Pattern`, `Type`, `Def`, `Literal`, `ParamMode`) must have a
@@ -238,7 +237,7 @@ fn design_md_anchors_every_literal_variant() {
 
 /// Every `Def` kind must have its JSON-schema anchor present in
 /// DESIGN.md §"Data model". All five kinds (`fn`, `const`, `type`,
-/// `ClassDef`, `InstanceDef`) must be documented so an LLM can write
+/// `class`, `instance`) must be documented so an LLM can write
 /// any kind of top-level definition.
 #[test]
 fn design_md_anchors_every_def_kind() {