fix: resolve core bugs and enhance logging for AI insights

Fix aggressive activity analysis and loop bug, add detailed logs, and introduce test trigger button.

Co-authored-by: Jason <159670257+Jasonzhu1207@users.noreply.github.com>

electron/preload.ts

@@ -447,6 +447,7 @@ contextBridge.exposeInMainWorld('electronAPI', {
   // AI 见解
   insight: {
     testConnection: () => ipcRenderer.invoke('insight:testConnection'),
-    getTodayStats: () => ipcRenderer.invoke('insight:getTodayStats')
+    getTodayStats: () => ipcRenderer.invoke('insight:getTodayStats'),
+    triggerTest: () => ipcRenderer.invoke('insight:triggerTest')
   }
 })