fix(claude): route stream-json launch through process wrapper

src/main/claude/claude-stream-json-connection.test.ts

@@ -1,7 +1,7 @@
 import { EventEmitter } from 'node:events'
 import { PassThrough } from 'node:stream'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import type { spawn } from 'node:child_process'
+import type { spawnProcess } from '../../shared/child-process/run-process'
 import {
   openClaudeStreamJsonConnection,
   type ClaudeControlRequest
@@ -22,10 +22,8 @@ function fakeSpawn() {
   child.stdout = new PassThrough()
   child.stderr = new PassThrough()
   child.kill = vi.fn(() => true)
-  const spawnMock = vi.fn(
-    (_command: string, _args: readonly string[], _options: { env?: NodeJS.ProcessEnv }) => child
-  )
-  const spawnImpl = spawnMock as unknown as typeof spawn
+  const spawnMock = vi.fn((_spec: Parameters<typeof spawnProcess>[0]) => child)
+  const spawnImpl = spawnMock as unknown as typeof spawnProcess
   return { child, spawnImpl, spawnMock }
 }
 
@@ -75,12 +73,12 @@ describe('Claude stream-json connection', () => {
 
     await expect(listing).resolves.toEqual({ models: [{ value: 'sonnet' }] })
     expect(process.spawnImpl).toHaveBeenCalledWith(
-      'claude',
-      ['-p'],
       expect.objectContaining({
+        program: 'claude',
+        args: ['-p'],
         cwd: '/work/repo',
         env: expect.objectContaining({ CLAUDE_CONFIG_DIR: '/accounts/one' }),
-        windowsHide: true
+        stdio: ['pipe', 'pipe', 'pipe']
       })
     )
   })
@@ -173,7 +171,7 @@ describe('Claude stream-json connection', () => {
       process.spawnImpl
     )
 
-    const env = process.spawnMock.mock.calls[0]?.[2]?.env
+    const env = process.spawnMock.mock.calls[0]?.[0]?.env
     expect(env).toMatchObject({
       ANTHROPIC_AUTH_TOKEN: 'configured-token',
       ANTHROPIC_BASE_URL: 'https://gateway.example.test',

src/main/claude/claude-stream-json-connection.ts

@@ -1,4 +1,4 @@
-import { spawn, type ChildProcessWithoutNullStreams } from 'node:child_process'
+import { spawnProcess } from '../../shared/child-process/run-process'
 import { waitForProcessExitUntil } from '../codex/codex-process-exit-deadline'
 import { killCodexAppServerProcessTree } from '../codex/codex-app-server-session'
 import { buildClaudeChildProcessEnv } from './claude-child-process-environment'
@@ -82,14 +82,15 @@ function exitError(stderrTail: string, cause?: Error): Error {
 export async function openClaudeStreamJsonConnection(
   launch: ClaudeStreamJsonLaunch,
   handlers: ClaudeStreamJsonConnectionHandlers = {},
-  spawnImpl: typeof spawn = spawn
+  spawnImpl: typeof spawnProcess = spawnProcess
 ): Promise<ClaudeStreamJsonConnection> {
-  const child = spawnImpl(launch.command, launch.args, {
+  const child = spawnImpl({
+    program: launch.command,
+    args: launch.args,
     cwd: launch.cwd,
     env: buildClaudeChildProcessEnv(launch.env),
-    stdio: ['pipe', 'pipe', 'pipe'],
-    windowsHide: true
-  }) as ChildProcessWithoutNullStreams
+    stdio: ['pipe', 'pipe', 'pipe']
+  })
   const pending = new Map<string, PendingRequest>()
   let nextRequestId = 1
   let stderrTail = ''