tech: add platform to launchdarkly context

src/backend/flags/flags.ts

@@ -1,14 +1,26 @@
 import { logInfo, LogPrefix } from 'backend/logger/logger'
 import { LDUser } from 'common/types'
+import { app } from 'electron'
 import * as LDElectron from 'launchdarkly-electron-client-sdk'
+import { platform } from 'os'
 
 export let ldMainClient: LDElectron.LDElectronMainClient
 export const LDEnvironmentId = import.meta.env.VITE_LD_ENVIRONMENT_ID
 
 export function initLDClient(ldUser: LDUser) {
-  ldMainClient = LDElectron.initializeInMain(LDEnvironmentId!, ldUser, {
-    streaming: true
-  })
+  ldMainClient = LDElectron.initializeInMain(
+    LDEnvironmentId!,
+    {
+      ...ldUser,
+      custom: {
+        appVersion: app.getVersion(),
+        platform: platform()
+      }
+    },
+    {
+      streaming: true
+    }
+  )
 
   ldMainClient.on('ready', () => {
     logInfo('LaunchDarkly client initialized', LogPrefix.Backend)

src/frontend/index.tsx

@@ -119,11 +119,13 @@ const root = createRoot(container!) // createRoot(container!) if you use TypeScr
 const renderApp = async () => {
   const ldConfig = await window.api.getLDEnvConfig()
   const appVersion = await window.api.getAppVersion()
+  const platform = await window.api.getPlatform()
 
   const context = {
     ...ldConfig.ldUser,
     appVersion,
-    languageCode
+    languageCode,
+    platform
   }
 
   window.api.logInfo(