fix(mac): load menu session previews

apps/macos/Tests/ClawdbotIPCTests/SessionMenuPreviewTests.swift

@@ -0,0 +1,26 @@
+import Foundation
+import Testing
+@testable import Clawdbot
+
+@Suite(.serialized)
+struct SessionMenuPreviewTests {
+    @Test func loaderReturnsCachedItems() async {
+        await SessionPreviewCache.shared._testReset()
+        let items = [SessionPreviewItem(id: "1", role: .user, text: "Hi")]
+        await SessionPreviewCache.shared._testSet(items: items, for: "main")
+
+        let snapshot = await SessionMenuPreviewLoader.load(sessionKey: "main", maxItems: 10)
+        #expect(snapshot.status == .ready)
+        #expect(snapshot.items.count == 1)
+        #expect(snapshot.items.first?.text == "Hi")
+    }
+
+    @Test func loaderReturnsEmptyWhenCachedEmpty() async {
+        await SessionPreviewCache.shared._testReset()
+        await SessionPreviewCache.shared._testSet(items: [], for: "main")
+
+        let snapshot = await SessionMenuPreviewLoader.load(sessionKey: "main", maxItems: 10)
+        #expect(snapshot.status == .empty)
+        #expect(snapshot.items.isEmpty)
+    }
+}