接续L4-TOOL-DB浏览器Worker边界

结论：浏览器 Tool DB Worker 传输层已接入并明确阻塞缺失的 Python/WASM runtime，未冒充 DB_PROGRAM 执行就绪。

wasm-port/tests/sdk/node/verify_sdk_surface.mjs

@@ -90,6 +90,7 @@ import {
   createProjectReleaseReadinessArtifactValidationSummaryViewModel,
   createProjectReleaseReadinessReport,
   createProjectReleaseReadinessSummaryViewModel,
+  createLinuxCncToolDbBrowserWorkerAdapter,
   createLinuxCncToolDbProcessPort,
   createToolDbProcessDiagnostics,
   createToolDbTransactionPlan,
@@ -522,6 +523,7 @@ const requiredExports = [
   ["saveMachineTextFiles", saveMachineTextFiles],
   ["loadMachineTextFiles", loadMachineTextFiles],
   ["gcodeFilenameFromProgramPath", gcodeFilenameFromProgramPath],
+  ["createLinuxCncToolDbBrowserWorkerAdapter", createLinuxCncToolDbBrowserWorkerAdapter],
   ["createLinuxCncToolDbProcessPort", createLinuxCncToolDbProcessPort],
   ["createToolDbProcessDiagnostics", createToolDbProcessDiagnostics],
   ["createToolDbTransactionPlan", createToolDbTransactionPlan],

wasm-port/tests/sdk/node/verify_tool_db_node_runtime_adapter.mjs

@@ -83,6 +83,7 @@ const port = createLinuxCncToolDbProcessPort({
 const startResult = await port.start();
 assert.equal(startResult.runtimeMode, "node-linuxcnc-db-program");
 assert.equal(startResult.runtimeExecutionReady, true);
+assert.equal(startResult.status, "node_linuxcnc_db_program_started");
 assert.equal(startResult.executionEnabled, false);
 assert.equal(startResult.promotionAllowed, false);
 

wasm-port/tests/sdk/node/verify_tool_db_process_port.mjs

@@ -1,5 +1,8 @@
 import assert from "node:assert/strict";
 
+import {
+  createLinuxCncToolDbBrowserWorkerAdapter,
+} from "../../../runtime/sdk/src/tool-db-browser-worker-adapter.js";
 import {
   TOOL_DB_PROCESS_PORT_CONTRACT_VERSION,
   TOOL_DB_TRANSACTION_PLAN,
@@ -37,6 +40,7 @@ const startResult = await port.start();
 assert.deepEqual(startResult, {
   runtimeMode: "contract-only",
   runtimeExecutionReady: false,
+  status: null,
   executionEnabled: false,
   promotionAllowed: false,
 });
@@ -48,6 +52,53 @@ assert.equal(blockedPlan.executionEnabled, false);
 assert.equal(blockedPlan.promotionAllowed, false);
 assert.equal(blockedPlan.tblFallbackSufficient, false);
 
+class FakeBlockedWorker {
+  constructor() {
+    this.listeners = new Map();
+  }
+
+  addEventListener(type, listener) {
+    this.listeners.set(type, listener);
+  }
+
+  postMessage(message) {
+    queueMicrotask(() => {
+      this.listeners.get("message")?.({
+        data: {
+          id: message.id,
+          type: message.type,
+          ok: true,
+          runtimeExecutionReady: false,
+          status: "blocked_browser_python_wasm_runtime_missing",
+          executionEnabled: false,
+          promotionAllowed: false,
+        },
+      });
+    });
+  }
+
+  terminate() {}
+}
+
+const browserWorkerAdapter = createLinuxCncToolDbBrowserWorkerAdapter({
+  workerUrl: "./tool-db-python-worker.js",
+  workerFactory: () => new FakeBlockedWorker(),
+});
+const browserWorkerPort = createLinuxCncToolDbProcessPort({
+  dbProgramPath: "./db_nonran.py",
+  runtimeMode: browserWorkerAdapter.runtimeMode,
+  runtimeAdapter: browserWorkerAdapter,
+});
+const browserWorkerStart = await browserWorkerPort.start();
+assert.equal(browserWorkerStart.runtimeMode, "browser-python-wasm-worker");
+assert.equal(browserWorkerStart.runtimeExecutionReady, false);
+assert.equal(browserWorkerStart.status, "blocked_browser_python_wasm_runtime_missing");
+const browserWorkerBlockedPlan = await browserWorkerPort.runTransactionPlan();
+assert.equal(browserWorkerBlockedPlan.status, "blocked_browser_python_wasm_runtime_missing");
+assert.equal(browserWorkerBlockedPlan.runtimeExecutionReady, false);
+assert.equal(browserWorkerBlockedPlan.promotionAllowed, false);
+await browserWorkerPort.close();
+
 const transcript = [
   { direction: "read", line: "v2.1" },
   { direction: "write", line: "g" },