按规划继续工作

结论：补齐机器会话显式参数文件和刀具表文件名优先于 INI 派生值的 Node 与 Chromium 验证，保持该策略在 OPFS/SDK 主机边界内，并通过 host/WASM/browser 聚合验证。

wasm-port/tests/opfs/node/verify_file_service.mjs

@@ -209,6 +209,13 @@ const bridgeIniSdk = {
     ) {
       return "custom.var";
     }
+    if (
+      path === "/work/ini-override-session.ini" &&
+      section === "RS274NGC" &&
+      tag === "PARAMETER_FILE"
+    ) {
+      return "ignored.var";
+    }
     if (
       path === "/work/invalid-ini-file-session.ini" &&
       section === "RS274NGC" &&
@@ -223,6 +230,13 @@ const bridgeIniSdk = {
     ) {
       return "custom-tool.tbl";
     }
+    if (
+      path === "/work/ini-override-session.ini" &&
+      section === "EMCIO" &&
+      tag === "TOOL_TABLE"
+    ) {
+      return "ignored-tool.tbl";
+    }
     if (
       path === "/work/invalid-tool-file-session.ini" &&
       section === "EMCIO" &&
@@ -430,6 +444,53 @@ assert.equal(
   "tooldata_load=0\nload_tool_path=/work/ini-file-session-tool.tbl\nrandom_toolchanger=0\n",
 );
 
+await saveMachineTextFiles("ini-override-session", {
+  ini: [
+    "[EMC]",
+    "MACHINE = ini-override-session",
+    "",
+    "[RS274NGC]",
+    "PARAMETER_FILE = ignored.var",
+    "",
+    "[EMCIO]",
+    "TOOL_TABLE = ignored-tool.tbl",
+    "",
+  ].join("\n"),
+}, { storage });
+await saveTextFile(
+  "linuxcnc/machines/ini-override-session/explicit.var",
+  "5161 11.0\n5162 22.0\n",
+  storage,
+);
+await saveTextFile(
+  "linuxcnc/machines/ini-override-session/explicit-tool.tbl",
+  "T3 P3 Z1.75 D0.375\n",
+  storage,
+);
+const loadedIniOverrideSession = await loadMachineSessionFromOpfs(
+  bridgeInterp,
+  "ini-override-session",
+  {
+    storage,
+    iniSdk: bridgeIniSdk,
+    iniWasmPath: "/work/ini-override-session.ini",
+    parameterFilename: "explicit.var",
+    parameterWasmPath: "/work/ini-override-session.var",
+    toolTableFilename: "explicit-tool.tbl",
+    toolTableWasmPath: "/work/ini-override-session-tool.tbl",
+  },
+);
+assert.equal(
+  loadedIniOverrideSession.parameters.opfsPath,
+  "linuxcnc/machines/ini-override-session/explicit.var",
+);
+assert.equal(
+  loadedIniOverrideSession.toolTable.opfsPath,
+  "linuxcnc/machines/ini-override-session/explicit-tool.tbl",
+);
+assert.equal(bridgeFiles.get("/work/ini-override-session.var"), "5161 11.0\n5162 22.0\n");
+assert.equal(bridgeFiles.get("/work/ini-override-session-tool.tbl"), "T3 P3 Z1.75 D0.375\n");
+
 await saveMachineTextFiles("invalid-ini-file-session", {
   ini: [
     "[EMC]",