fix(wsl): translate Codex preflight through WSLENV

src/main/pty/codex-shell-launch-preflight.test.ts

@@ -343,26 +343,23 @@ describe('Codex shell launch preflight command', () => {
     ).toBe(launcherPath)
   })
 
-  it.skipIf(process.platform !== 'win32')(
-    'carries the packaged Windows launcher as a guest-absolute WSL path',
-    () => {
-      const { userDataPath, resourcesPath } = makeCliRoot()
-      const launcherPath = join(resourcesPath, 'bin', 'orca.exe')
-      writeExecutable(launcherPath, '#!/bin/sh\nexit 0\n')
+  it('carries the packaged Windows launcher for WSLENV path translation', () => {
+    const { userDataPath, resourcesPath } = makeCliRoot()
+    const launcherPath = join(resourcesPath, 'bin', 'orca.exe')
+    writeExecutable(launcherPath, '#!/bin/sh\nexit 0\n')
 
-      expect(
-        resolveCodexShellLaunchPreflightCommand({
-          hooksEnabled: true,
-          isPackaged: true,
-          isWsl: true,
-          managedHomePath: '/home/jin/.local/share/orca/codex-runtime-home/home',
-          userDataPath,
-          resourcesPath,
-          platform: 'win32'
-        })
-      ).toMatch(/^\/mnt\/[a-z]\//)
-    }
-  )
+    expect(
+      resolveCodexShellLaunchPreflightCommand({
+        hooksEnabled: true,
+        isPackaged: true,
+        isWsl: true,
+        managedHomePath: '/home/jin/.local/share/orca/codex-runtime-home/home',
+        userDataPath,
+        resourcesPath,
+        platform: 'win32'
+      })
+    ).toBe(launcherPath)
+  })
 
   it('never returns an unqualified command name that a profile-rewritten PATH could hijack', () => {
     const { userDataPath, resourcesPath } = makeCliRoot()

src/main/pty/codex-shell-launch-preflight.ts

@@ -1,6 +1,5 @@
 import { accessSync, constants, statSync } from 'node:fs'
 import { join } from 'node:path'
-import { toLinuxPath } from '../../shared/wsl-paths'
 import { getBundledLauncherPath } from '../cli/bundled-cli-launcher-path'
 
 const DEV_LAUNCHER_DIR = ['cli', 'bin']
@@ -49,8 +48,8 @@ export function resolveCodexShellLaunchPreflightCommand(
   if (!options.isWsl) {
     return candidate
   }
-  // Why: WSL executes the verified Windows launcher through interop; its guest path crosses WSLENV untranslated.
-  return platform === 'win32' && options.isPackaged ? toLinuxPath(candidate) : null
+  // Why: WSLENV /p translates the verified Windows launcher with the distro's configured automount root.
+  return platform === 'win32' && options.isPackaged ? candidate : null
 }
 
 function isExecutableFileOnDisk(path: string, platform: NodeJS.Platform): boolean {

src/main/pty/wsl-orca-env.test.ts

@@ -84,7 +84,7 @@ describe('addOrcaWslInteropEnv', () => {
     expect(env.WSLENV).toContain('ORCA_TERMINAL_HANDLE/u')
     expect(env.WSLENV).toContain('ORCA_USER_DATA_PATH/p')
     expect(env.WSLENV).toContain('ORCA_CLI_COMMAND/u')
-    expect(env.WSLENV).toContain('ORCA_CODEX_LAUNCH_PREFLIGHT/u')
+    expect(env.WSLENV).toContain('ORCA_CODEX_LAUNCH_PREFLIGHT/p')
     expect(env.WSLENV).toContain('ORCA_OMP_STATUS_EXTENSION/p')
     expect(env.WSLENV).not.toContain('ORCA_PRIME_AGENT_STATUS_EXTENSION')
     expect(env.WSLENV).toContain('ORCA_PANE_KEY/u')

src/main/pty/wsl-orca-env.ts

@@ -77,7 +77,7 @@ export function addOrcaWslInteropEnv(env: Record<string, string>): void {
     // and it cannot derive the hash segment from ORCA_USER_DATA_PATH alone.
     'ORCA_SHELL_READY_ROOT/p',
     'ORCA_CLI_COMMAND/u',
-    'ORCA_CODEX_LAUNCH_PREFLIGHT/u',
+    'ORCA_CODEX_LAUNCH_PREFLIGHT/p',
     'ORCA_PANE_KEY/u',
     'ORCA_TAB_ID/u',
     'ORCA_WORKTREE_ID/u',