freeze: macro platform complete; default ON with profiles; env consolidation; docs + smokes\n\n- Profiles: --profile {lite|dev|ci|strict} (dev-like default for macros)\n- Macro paths: prefer NYASH_MACRO_PATHS (legacy envs deprecated with warnings)\n- Selfhost pre-expand: auto mode, PyVM-only, add smokes (array/map)\n- Docs: user-macros updated; new macro-profiles guide; AGENTS freeze note; CURRENT_TASK freeze\n- Compat: non-breaking; legacy envs print deprecation notices\n

apps/macros/examples/echo_macro.nyash

@@ -0,0 +1,9 @@
+// Example user macro: echo (identity)
+// Contract: expand(json: string) -> string (AST JSON v0)
+
+static box MacroBoxSpec {
+  expand(json) {
+    // In real macros, parse and transform AST JSON here.
+    return json
+  }
+}