phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0

local_tests/test_basic_wasm.hako

@@ -0,0 +1,7 @@
+static box Main {
+    main() {
+        print("WASM Box Operations Test")
+        print(42 + 8)
+        return 50
+    }
+}