feat: support mdtodo workspace-root web-probe config (#899)

Co-authored-by: Codex <codex@noreply.local>

scripts/src/hwlab-node-impl.ts

@@ -148,6 +148,7 @@ interface NodeWebProbeObserveOptions {
   commandStatus: string | null;
   commandHwpodId: string | null;
   commandNodeId: string | null;
+  commandWorkspaceRoot: string | null;
   commandRoot: string | null;
 }
 
@@ -7582,6 +7583,8 @@ function parseNodeWebProbeObserveOptions(
       "--status",
       "--hwpod-id",
       "--node-id",
+      "--workspace-root",
+      "--workspace-root-ref",
       "--root",
   ]), new Set(["--force", "--full", "--text-stdin"]));
   const commandTypeRaw = optionValue(args, "--type") ?? null;
@@ -7635,6 +7638,7 @@ function parseNodeWebProbeObserveOptions(
   const commandStatus = optionValue(args, "--status") ?? null;
   const commandHwpodId = optionValue(args, "--hwpod-id") ?? null;
   const commandNodeId = optionValue(args, "--node-id") ?? null;
+  const commandWorkspaceRoot = optionValue(args, "--workspace-root") ?? optionValue(args, "--workspace-root-ref") ?? null;
   const commandRoot = optionValue(args, "--root") ?? null;
   for (const [label, value] of [
     ["--source-id", commandSourceId],
@@ -7646,6 +7650,7 @@ function parseNodeWebProbeObserveOptions(
     ["--status", commandStatus],
     ["--hwpod-id", commandHwpodId],
     ["--node-id", commandNodeId],
+    ["--workspace-root/--workspace-root-ref", commandWorkspaceRoot],
     ["--root", commandRoot],
   ] as const) {
     if (value !== null && (value.includes("\0") || value.length > 500)) throw new Error(`unsafe web-probe observe ${label}: expected 1-500 non-NUL chars`);
@@ -7697,6 +7702,7 @@ function parseNodeWebProbeObserveOptions(
     commandStatus,
     commandHwpodId,
     commandNodeId,
+    commandWorkspaceRoot,
     commandRoot,
   };
 }
@@ -8419,6 +8425,7 @@ function runNodeWebProbeObserveCommand(options: NodeWebProbeObserveOptions, spec
     status: options.commandStatus,
     hwpodId: options.commandHwpodId,
     nodeId: options.commandNodeId,
+    workspaceRoot: options.commandWorkspaceRoot,
     root: options.commandRoot,
   };
   const preStopStatus = options.force && stopCommand