test(设备证据): 第一次真机读回通过闸（前台=ours）—— 收两份真实证据

1. fixtures/aa-dump-l-ours-foreground.txt：**真实**的我们前台样本（此前那条正例是**对调状态合成的**，
   这份是真的）——闸判 ours、mayAssertOn=true。
2. fixtures/ui-layout-ours.json： 实采的控件树（33,899 B），
   带 bounds/backgroundColor/text 等属性 —— 这是把 harmony-appearance / appearance-defaults /
   cross-client-theme 三条从验形状升成真机读回的原料。

顺序按 pi 的更正：**先拿窗口（探测说静默）再 aa start**，然后取 dump 过闸。

client/electron/test/fixtures/aa-dump-l-ours-foreground.txt

@@ -0,0 +1,25 @@
+User ID #100
+  current mission lists:{
+    Mission ID #31  mission name #[#com.example.homeagent:entry:EntryAbility]  lockedState #0  mission affinity #[]
+      AbilityRecord ID #37
+        app name [com.example.homeagent]
+        main name [EntryAbility]
+        bundle name [com.example.homeagent]
+        ability type [PAGE]
+        state #BACKGROUND  start time [363747]
+        app state #BACKGROUND
+        ready #1  window attached #0  launcher #0
+        callee connections: 
+        isKeepAlive: false
+    Mission ID #32  mission name #[#com.jianf.agentmail:entry:EntryAbility]  lockedState #0  mission affinity #[]
+      AbilityRecord ID #39
+        app name [com.jianf.agentmail]
+        main name [EntryAbility]
+        bundle name [com.jianf.agentmail]
+        ability type [PAGE]
+        state #FOREGROUND  start time [530008]
+        app state #FOREGROUND
+        ready #1  window attached #0  launcher #0
+        callee connections: 
+        isKeepAlive: false
+ }