[Bug] Cowork session spawn fails: Bridge socket creation exhausted after 5 attempts

Bug Description
Cowork fails consistently on every session spawn. App 1.3036.0, macOS [bitte sw_vers ergänzen]. VM boots cleanly, then claude-code process exits with code 1 after 1s with Error: Failed to create bridge sockets after 5 attempts (see cowork_vm_node.log). Reproducible after full app restart, killing all helper processes, and removing bridge-state.json. Claude Code VM SDK version 2.1.111. Issue started around the 15.04.2026 Cowork GA / Desktop rewrite.

Environment Info

• Platform: darwin
• Terminal: kitty
• Version: 2.1.111
• Feedback ID: 9903f9f8-4c27-4628-8399-6a39c5332127

Errors

[{"error":"Error: Failed to delete keychain entry: security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n    at uAq (/$bunfs/root/src/entrypoints/cli.js:253:283569)\n    at async huq (/$bunfs/root/src/entrypoints/cli.js:406:898)\n    at async BS6 (/$bunfs/root/src/entrypoints/cli.js:406:796)\n    at async m8_ (/$bunfs/root/src/entrypoints/cli.js:2724:2084)\n    at async cjH (/$bunfs/root/src/entrypoints/cli.js:2749:5698)\n    at async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:2773:3363)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-16T19:23:11.994Z"}]