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/index.js

@@ -0,0 +1,28 @@
+import { arcG2G3Program } from "./arc-g2-g3.js";
+import { drillG81Program } from "./drill-g81.js";
+import { incrementalLoopProgram } from "./incremental-loop.js";
+import { pocketZProgram } from "./pocket-z.js";
+import { squareLinearProgram } from "./square-linear.js";
+
+export const SIMULATION_TEST_PROGRAMS = [
+  squareLinearProgram,
+  pocketZProgram,
+  incrementalLoopProgram,
+  arcG2G3Program,
+  drillG81Program,
+];
+
+export const DEFAULT_SIMULATION_PROGRAM_ID = SIMULATION_TEST_PROGRAMS[0].id;
+export const DEFAULT_SIMULATION_PROGRAM = SIMULATION_TEST_PROGRAMS[0].text;
+
+export function getSimulationTestPrograms() {
+  return SIMULATION_TEST_PROGRAMS.map((program) => ({ ...program }));
+}
+
+export function getSimulationTestProgram(programId = DEFAULT_SIMULATION_PROGRAM_ID) {
+  const program = SIMULATION_TEST_PROGRAMS.find(({ id }) => id === programId);
+  if (!program) {
+    throw new Error(`unknown simulation test program: ${programId}`);
+  }
+  return program;
+}