拆分仿真测试程序目录

结论：将内置 G-code 测试程序从 simulation-app.js 移入 runtime/ui/simulation/programs/，建立一程序一模块的目录化程序库，并保持页面 API 与验证 gate 兼容。

wasm-port/runtime/ui/simulation/programs/pocket-z.js

@@ -0,0 +1,17 @@
+export const pocketZProgram = {
+  id: "pocket-z",
+  label: "Pocket with Z moves",
+  category: "Linear",
+  text: [
+    "G90 G17 G0 X0 Y0 Z1",
+    "G1 Z-0.25 F40",
+    "G1 X2 Y0 F120",
+    "G1 X2 Y1",
+    "G1 X0 Y1",
+    "G1 X0 Y0",
+    "G0 Z1",
+    "M2",
+    "",
+  ].join("\n"),
+  expectedMotionTypes: ["STRAIGHT_TRAVERSE", "STRAIGHT_FEED"],
+};