feat(analytics): add privacy-safe product telemetry

Add self-hosted Umami reporting alongside existing telemetry across Desktop and CLI Web.

Track normalized startup, import, feature, and AI usage with a stable anonymous ID and strict privacy allowlists. Keep incremental usage platform-independent and preserve accurate failure classifications and platform metadata across import paths.

apps/desktop/preload/apis/chat.ts

@@ -10,6 +10,7 @@ import type { ImportProgress } from '../../../../src/types/base'
 interface ChatImportResult {
   success: boolean
   sessionId?: string
+  platform?: string
   error?: string
   importMode?: 'created' | 'incremental'
   matchedBy?: 'source-session-id' | 'stable-id' | 'trailing-messages'
@@ -90,6 +91,7 @@ export const chatApi = {
     newMessageCount: number
     duplicateCount: number
     totalInFile: number
+    platform?: string
     error?: string
     diagnosis?: { suggestion?: string }
   }> => ipcRenderer.invoke('chat:analyzeIncrementalImport', sessionId, filePath),

apps/desktop/preload/apis/core.ts

@@ -2,6 +2,7 @@
  * 核心 API - 基础 IPC 通信和系统功能
  */
 import { ipcRenderer } from 'electron'
+import type { AnalyticsEventName } from '@openchatlab/shared-types'
 
 // Custom APIs for renderer
 export const api = {
@@ -95,6 +96,9 @@ export const extendedApi = {
     trackDailyActive: (locale: string): Promise<void> => {
       return ipcRenderer.invoke('analytics:trackDailyActive', locale)
     },
+    trackAnalyticsEvent: (eventName: AnalyticsEventName, properties?: Record<string, unknown>): Promise<void> => {
+      return ipcRenderer.invoke('analytics:track', eventName, properties)
+    },
     /**
      * 重启应用
      */