fix(web-probe): accept stdin prompts for observe commands (#724)

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

scripts/src/hwlab-node-impl.ts

@@ -6923,7 +6923,7 @@ function parseNodeWebProbeObserveOptions(
     "--label",
       "--session-id",
       "--provider",
-  ]), new Set(["--force", "--full"]));
+  ]), new Set(["--force", "--full", "--text-stdin"]));
   const commandTypeRaw = optionValue(args, "--type") ?? null;
   const commandType = commandTypeRaw === null ? null : parseNodeWebProbeObserveCommandType(commandTypeRaw);
   const stateDir = optionValue(args, "--state-dir") ?? indexed?.stateDir ?? null;
@@ -6937,6 +6937,15 @@ function parseNodeWebProbeObserveOptions(
   if (observeActionRaw !== "start" && stateDir === null && jobId === null) {
     throw new Error("web-probe observe status|command|stop|collect|analyze requires --state-dir or --job-id");
   }
+  const commandTextOption = optionValue(args, "--text") ?? null;
+  const commandTextFromStdin = args.includes("--text-stdin");
+  if (commandTextFromStdin && observeActionRaw !== "command") {
+    throw new Error("web-probe observe --text-stdin is only supported for observe command");
+  }
+  if (commandTextFromStdin && commandTextOption !== null) {
+    throw new Error("web-probe observe command accepts either --text or --text-stdin, not both");
+  }
+  const commandText = commandTextFromStdin ? readFileSync(0, "utf8") : commandTextOption;
   return {
     action: "observe",
     observeAction: observeActionRaw,
@@ -6962,7 +6971,7 @@ function parseNodeWebProbeObserveOptions(
     jobId,
     force: args.includes("--force"),
     commandType,
-    commandText: optionValue(args, "--text") ?? null,
+    commandText,
     commandPath: optionValue(args, "--path") ?? null,
     commandLabel: optionValue(args, "--label") ?? null,
     commandSessionId: optionValue(args, "--session-id") ?? null,