推进 OPFS 机器会话快照保存入口

wasm-port/tests/browser/ini_panel_smoke.html

@@ -17,6 +17,7 @@
     import {
       createMachineSessionSnapshotPayload,
       loadSessionSnapshot,
+      saveMachineSessionSnapshot,
       saveSessionSnapshot,
     } from "../../runtime/opfs/snapshot-store.js";
     import {
@@ -204,6 +205,42 @@ TOOL_TABLE = browser-tool.tbl
         customSnapshot.metadata.source,
         "custom snapshot metadata",
       );
+      const machineSessionSnapshot = await saveMachineSessionSnapshot(
+        "browser-machine-session",
+        "browser-smoke",
+        {
+          filename: "browser-machine-snapshot.json",
+          parameterFilename: "browser-linuxcnc.var",
+          toolTableFilename: "browser-tool.tbl",
+          gcodeFilename: "browser-smoke.ngc",
+          createdAt: "2026-06-08T00:00:00.000Z",
+          metadata: { source: "browser-machine-session" },
+        },
+      );
+      const loadedMachineSessionSnapshot = await loadSessionSnapshot(
+        "browser-machine-session",
+        { filename: "browser-machine-snapshot.json" },
+      );
+      assertEqual(
+        machineSessionSnapshot.payload.files.parameters,
+        "linuxcnc/machines/browser-smoke/browser-linuxcnc.var",
+        "machine session snapshot parameter file",
+      );
+      assertEqual(
+        machineSessionSnapshot.payload.files.toolTable,
+        "linuxcnc/machines/browser-smoke/browser-tool.tbl",
+        "machine session snapshot tool table",
+      );
+      assertEqual(
+        loadedMachineSessionSnapshot.payload.files.gcode,
+        "linuxcnc/gcode/browser-smoke.ngc",
+        "machine session snapshot G-code",
+      );
+      assertEqual(
+        loadedMachineSessionSnapshot.metadata.source,
+        "browser-machine-session",
+        "machine session snapshot metadata",
+      );
       await assertRejects(
         "browser snapshot invalid filename save",
         () => saveSessionSnapshot("browser-session", {}, {