fix: auto-resolve sync conflicts and hide Dock icon by default

[bifrost-proxy]

Summary

• automatically publish a deterministic superseding operation when configuration or dictionary values conflict across devices
• avoid resolution write loops when concurrent operations already contain identical payloads
• hide the Dock icon by default for new profiles while preserving an existing explicit preference
• declare LSUIElement at launch so the icon does not flash before preferences load

User-visible behavior

• the sync settings page no longer leaves duplicate/conflicting configuration or dictionary entries waiting for manual intervention; the immutable operation log converges automatically
• fresh installs run as a menu-bar app without requiring the user to enable “Hide Dock Icon”
• users who explicitly chose to show the Dock icon keep that setting

Compatibility and privacy

• existing sync files are not deleted or rewritten; resolution is append-only and supersedes all observed candidates
• deterministic selection uses the existing register policy, including dictionary add-wins behavior
• no secrets, audio, or additional user data are synchronized

Risk and rollback

• risk: an automatically selected concurrent configuration value may differ from one device's local edit; the winner follows the existing deterministic materialization rule
• rollback: revert this commit; existing resolution operations remain valid append-only history and old app versions can still read the resolved value

Verification

• git diff --check
• make check
• xcodebuild test -project VoiceInk.xcodeproj -scheme VoiceInk -destination 'platform=macOS,arch=arm64' -only-testing:VoiceInkTests -parallel-testing-enabled NO CODE_SIGNING_ALLOWED=NO ENABLE_TESTABILITY=YES
  • 442 tests in 35 suites passed
• tests cover deterministic resolution, equal-value no-op behavior, steady-state no-loop behavior, configuration integration, dictionary integration, and registered Dock preference semantics

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve the legacy Dock setting for existing profiles

On upgrade, established users who never toggled “Hide Dock Icon” have no persistent IsMenuBarOnly value because the previous register(defaults:) value was only a registration-domain fallback. Changing that fallback to true therefore makes those existing profiles start in menu-bar-only mode and hides their main window, rather than limiting the new behavior to fresh installs as intended. Add an installation-aware migration that persists false for established profiles lacking the key before registering the new default.

AGENTS.md reference: AGENTS.md:L153-L158

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