CLI 4.212.0

⛰️ Features

• store and collect commit coverage, Git history and test-selection data (#13561)

🐛 Bug Fixes

• backport local package registry override fix to 4.212 (#14074)
• keep code coverage when Xcode 27 cache prefix mapping is on (#13826)
• preserve Swift warning group flags (#13812)
• restore cached targets whose outputs include an empty file (#13782)
• stop signature verification from slowing local-hit generates (#13772)
• accept once on project creation and hide it from shipped clients (#13762)
• accept project build systems clients don't know yet (#13760)
• resolve REAPI module cache stalls on 4.211 cold generate (#13753)
• drop redundant -swift-version flag from swiftLanguageMode mapping (#13755)
• resolve /^root snapshot paths against the checkout (#13737)
• keep schemes with hand-written test plans on their emptied project so selective testing runs them (#13702)
• make byte formatting thread-safe on Linux (#13696)
• name the REAPI call a module cache upload failed on (#13672)
• bundle dSYMs into cached XCFrameworks warmed for release (#13638)

⚡ Performance

• stop StaticXCFrameworkModuleMapGraphMapper from walking every target's closure (#13783)
• execute generation side effects concurrently and without quadratic link checks (#13683)