fix: bundle node runtime for mac app

apps/macos/Sources/Clawdbot/GatewayEnvironment.swift

@@ -71,6 +71,12 @@ enum GatewayEnvironment {
         return FileManager.default.isExecutableFile(atPath: path) ? path : nil
     }
 
+    static func bundledNodeExecutable() -> String? {
+        guard let res = Bundle.main.resourceURL else { return nil }
+        let path = res.appendingPathComponent("Relay/node").path
+        return FileManager.default.isExecutableFile(atPath: path) ? path : nil
+    }
+
     static func gatewayPort() -> Int {
         if let raw = ProcessInfo.processInfo.environment["CLAWDBOT_GATEWAY_PORT"] {
             let trimmed = raw.trimmingCharacters(in: .whitespacesAndNewlines)
@@ -107,13 +113,15 @@ enum GatewayEnvironment {
 
         if let bundled = self.bundledGatewayExecutable() {
             let installed = self.readGatewayVersion(binary: bundled)
+            let bundledNode = self.bundledNodeExecutable()
+            let bundledNodeVersion = bundledNode.flatMap { self.readNodeVersion(binary: $0) }
             if let expected, let installed, !installed.compatible(with: expected) {
                 let message =
                     "Bundled gateway \(installed.description) is incompatible with app " +
                     "\(expected.description); rebuild the app bundle."
                 return GatewayEnvironmentStatus(
                     kind: .incompatible(found: installed.description, required: expected.description),
-                    nodeVersion: nil,
+                    nodeVersion: bundledNodeVersion,
                     gatewayVersion: installed.description,
                     requiredGateway: expected.description,
                     message: message)
@@ -121,10 +129,10 @@ enum GatewayEnvironment {
             let gatewayVersionText = installed?.description ?? "unknown"
             return GatewayEnvironmentStatus(
                 kind: .ok,
-                nodeVersion: nil,
+                nodeVersion: bundledNodeVersion,
                 gatewayVersion: gatewayVersionText,
                 requiredGateway: expected?.description,
-                message: "Bundled gateway \(gatewayVersionText) (bun)")
+                message: "Bundled gateway \(gatewayVersionText) (node \(bundledNodeVersion ?? "unknown"))")
         }
 
         let projectRoot = CommandResolver.projectRoot()
@@ -351,4 +359,26 @@ enum GatewayEnvironment {
         else { return nil }
         return Semver.parse(version)
     }
+
+    private static func readNodeVersion(binary: String) -> String? {
+        let process = Process()
+        process.executableURL = URL(fileURLWithPath: binary)
+        process.arguments = ["--version"]
+        process.environment = ["PATH": CommandResolver.preferredPaths().joined(separator: ":")]
+
+        let pipe = Pipe()
+        process.standardOutput = pipe
+        process.standardError = pipe
+        do {
+            try process.run()
+            process.waitUntilExit()
+            let data = pipe.fileHandleForReading.readToEndSafely()
+            let raw = String(data: data, encoding: .utf8)?
+                .trimmingCharacters(in: .whitespacesAndNewlines)
+                .replacingOccurrences(of: "^v", with: "", options: .regularExpression)
+            return raw?.isEmpty == false ? raw : nil
+        } catch {
+            return nil
+        }
+    }
 }