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_canvas_wasm.hako

@@ -0,0 +1,14 @@
+// Canvas WASM test - ExternCall経由でCanvas操作
+local result = 42
+
+// 赤い矩形を描画
+canvas.fillRect(10, 10, 100, 50, 255, 0, 0, 255)
+
+// 青い矩形を描画
+canvas.fillRect(120, 10, 100, 50, 0, 0, 255, 255)
+
+// 黒いテキストを描画
+canvas.fillText("Hello Nyash!", 10, 100, 0, 0, 0, 255, 24, "Arial")
+
+// コンソールに出力
+console.log("Canvas drawing complete!")