fix: add retry logic to daemon machine registration for transient connection errors

Add exponential backoff retry mechanism to handle ECONNREFUSED errors when the
server isn't ready yet during daemon startup. This includes:

- New errorUtils module with error classification helpers
- withRetry function in time.ts supporting configurable exponential backoff
- Machine registration retry with sensible defaults (60 attempts, 1-30s delays)
- Error refactoring to consolidate extractErrorInfo utility

close #35

cli/src/commands/claude.ts

@@ -10,43 +10,9 @@ import { initializeToken } from '@/ui/tokenInit'
 import { spawnHappyCLI } from '@/utils/spawnHappyCLI'
 import { maybeAutoStartServer } from '@/utils/autoStartServer'
 import { withBunRuntimeEnv } from '@/utils/bunRuntime'
+import { extractErrorInfo } from '@/utils/errorUtils'
 import type { CommandDefinition } from './types'
 
-function extractErrorInfo(error: unknown): {
-    message: string
-    messageLower: string
-    axiosCode?: string
-    httpStatus?: number
-    responseErrorText: string
-} {
-    const message = error instanceof Error ? error.message : 'Unknown error'
-    const messageLower = message.toLowerCase()
-
-    if (typeof error !== 'object' || error === null) {
-        return { message, messageLower, responseErrorText: '' }
-    }
-
-    const record = error as Record<string, unknown>
-    const axiosCode = typeof record.code === 'string' ? record.code : undefined
-    const response = typeof record.response === 'object' && record.response !== null
-        ? (record.response as Record<string, unknown>)
-        : undefined
-    const httpStatus = typeof response?.status === 'number' ? response.status : undefined
-    const responseData = response?.data
-    const responseError = typeof responseData === 'object' && responseData !== null
-        ? (responseData as Record<string, unknown>).error
-        : undefined
-    const responseErrorText = typeof responseError === 'string' ? responseError : ''
-
-    return {
-        message,
-        messageLower,
-        axiosCode,
-        httpStatus,
-        responseErrorText
-    }
-}
-
 export const claudeCommand: CommandDefinition = {
     name: 'default',
     requiresRuntimeAssets: true,