opx v0.4.0 - Argument Parsing Fix

🐛 Bug Fixes

Fixed: Multi-Account Flag Positioning

• --account flag now works both before and after command
• Previously only worked: opx --account=X read "op://..."
• Now also works: opx read "op://..." --account=X

🔧 Improvements

• Refactored argument parsing into single tested function
• Added comprehensive test suite (19 test cases)
• Simplified main() from ~50 lines to 3 lines
• Performance: 136 ns/op with minimal allocations

📦 Artifacts

• Server and client distributed separately
• macOS binaries (arm64) - Code signed
• SHA256 checksums included

Note: Binaries are signed with Apple Development certificate. For production use, you may need to allow the app in System Preferences > Security & Privacy.

Full changelog: v0.3.0...v0.4.0