推进 OPFS G-code 程序路径 helper

wasm-port/tests/browser/ini_panel_smoke.html

@@ -22,6 +22,7 @@
       saveSessionSnapshot,
     } from "../../runtime/opfs/snapshot-store.js";
     import {
+      gcodeFilenameFromProgramPath,
       loadGcodeProgram,
       loadMachineTextFiles,
       saveGcodeProgram,
@@ -328,6 +329,16 @@ TOOL_TABLE = browser-tool.tbl
         "linuxcnc/gcode/browser-custom.ngc",
         "custom G-code path",
       );
+      assertEqual(
+        gcodeFilenameFromProgramPath("linuxcnc/gcode/browser-custom.ngc"),
+        "browser-custom.ngc",
+        "custom G-code filename from OPFS path",
+      );
+      await assertRejects(
+        "browser G-code invalid program OPFS path",
+        () => Promise.resolve(gcodeFilenameFromProgramPath("linuxcnc/machines/browser-custom.ngc")),
+        /Invalid G-code program OPFS path/,
+      );
       await saveGcodeProgram("browser-smoke.ngc", "G0 X0 Y0\nM2\n");
       assertEqual(await loadGcodeProgram("browser-smoke.ngc"), "G0 X0 Y0\nM2\n", "gcode text");
       await saveGcodeProgram("browser-custom.ngc", "G1 X1 F10\nM2\n");