macOS: ensure /tmp/clawdbot exists for launchd logs

apps/macos/Sources/Clawdbot/LogLocator.swift

@@ -5,12 +5,17 @@ enum LogLocator {
     private static let stdoutLog = logDir.appendingPathComponent("clawdbot-stdout.log")
     private static let gatewayLog = logDir.appendingPathComponent("clawdbot-gateway.log")
 
+    private static func ensureLogDirExists() {
+        try? FileManager.default.createDirectory(at: self.logDir, withIntermediateDirectories: true)
+    }
+
     private static func modificationDate(for url: URL) -> Date {
         (try? url.resourceValues(forKeys: [.contentModificationDateKey]).contentModificationDate) ?? .distantPast
     }
 
     /// Returns the newest log file under /tmp/clawdbot/ (rolling or stdout), or nil if none exist.
     static func bestLogFile() -> URL? {
+        self.ensureLogDirExists()
         let fm = FileManager.default
         let files = (try? fm.contentsOfDirectory(
             at: self.logDir,
@@ -26,11 +31,13 @@ enum LogLocator {
 
     /// Path to use for launchd stdout/err.
     static var launchdLogPath: String {
-        stdoutLog.path
+        self.ensureLogDirExists()
+        return stdoutLog.path
     }
 
     /// Path to use for the Gateway launchd job stdout/err.
     static var launchdGatewayLogPath: String {
-        gatewayLog.path
+        self.ensureLogDirExists()
+        return gatewayLog.path
     }
 }

apps/macos/Tests/ClawdbotIPCTests/LogLocatorTests.swift

@@ -0,0 +1,21 @@
+import Foundation
+import Testing
+@testable import Clawdbot
+
+@Suite struct LogLocatorTests {
+    @Test func launchdGatewayLogPathEnsuresTmpDirExists() throws {
+        let dirPath = "/tmp/clawdbot"
+        let fm = FileManager.default
+
+        // Simulate a clean machine state where /tmp/clawdbot does not exist.
+        if fm.fileExists(atPath: dirPath) {
+            try? fm.removeItem(atPath: dirPath)
+        }
+
+        _ = LogLocator.launchdGatewayLogPath
+
+        var isDir: ObjCBool = false
+        #expect(fm.fileExists(atPath: dirPath, isDirectory: &isDir))
+        #expect(isDir.boolValue == true)
+    }
+}