Replace keychain password storage with file-based storage (#576)

Moves socket control password from the macOS login keychain to a
plain file at ~/Library/Application Support/cmux/socket-control-password.
This eliminates the system keychain prompt that interrupts users on
first launch or after keychain changes.

- Directory created with 0700, file written with 0600 permissions
- One-time migration copies existing keychain password to the file,
  deletes the keychain entry, and records a migration version in
  UserDefaults so it runs only once
- CLI SocketPasswordResolver also reads from the file path
- Security framework import is now conditional (#if canImport)
- Adds SocketControlPasswordStoreTests covering round-trip, env
  priority, path resolution, and migration behavior

Fixes https://github.com/manaflow-ai/cmux/issues/541
This commit is contained in:
Lawrence Chen 2026-02-26 14:29:12 -08:00 committed by GitHub
parent 780f959a48
commit 163f8572e4
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GPG key ID: B5690EEEBB952194
5 changed files with 276 additions and 90 deletions

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