fd6efdbcf6
Walks the implementer from a fresh directory to a green test sweep (splitter_unit, spec_completeness, example_roundtrip, token_balance) plus two checked-in rendered/*.md files. Visitor borrowed verbatim from schema_coverage; master/examples authored fresh as a curated 13- fixture set (one per AST variant cluster); master/spec.md authored in 13 sections with form-only blocks balanced by the ±5% gate. Open authoring deferrals to the implementer (named at the planner level, intentional): exact ParamMode enum names and the canonical prelude function names — both retrieved from current source by reading ailang-core/src/ast.rs and the prelude module at authoring time, rather than pinned in the plan against a possibly-stale recall.