XDRemux v1.2

Highlights

Keeps the Swift CLI as the recommended macOS conversion entry point.
Moves the Swift CLI from xdremux/swift/XDRemux.swift to xdremux/swift-cli/XDRemux.swift.
Moves the macOS SwiftUI app from xdremux/swift/XDRemuxApp to apps/macos/XDRemuxApp so the CLI and GUI shell are not mixed in one source directory.
Documents the current hybrid input-processing branch as the production default.
Preserves the Python CLI as the cross-platform entry point.
Clarifies OPPO compatibility behavior: clean Apple/ImageIO-compatible output by default, with --oppo-compat using the OPPO Gallery recognition path without appending any private local.uhdr.* / jxrs tail.
Fixes OPPO UserComment tagflag expansion for short source tags such as oplus_262144, so --oppo-compat can write the UltraHDR flag without corrupting HEIC item offsets.
Standardizes repository layout documentation and keeps reusable local automation in scripts/.

Users should invoke the main converters through xdremux/swift-cli/XDRemux.swift or xdremux/python/XDRemux.py.

The macOS app helper script remains scripts/build_and_run.sh, but it now targets the app project under apps/macos/XDRemuxApp.

This release was validated on macOS with:

Swift CLI typecheck for xdremux/swift-cli/XDRemux.swift.
macOS app core typecheck for apps/macos/XDRemuxApp/Sources/XDRemuxCore.swift and AppStrings.swift.
Python syntax compilation for the XDRemux Python modules.
Real UHDR sample conversion with --oppo-compat, confirming no local.uhdr.*, no jxrs, and zero bytes after the final mdat.
Real 18-file OPPO batch conversion with --oppo-compat on, confirming 18 converted files and 0 failures after UserComment expansion.
Byte-for-byte comparison against the GitHub origin/main baseline for Swift system, hybrid, and passthrough outputs when OPPO compatibility is disabled.
Byte-for-byte comparison against the GitHub origin/main baseline for the Python default output when OPPO compatibility is disabled.
xcodebuild Debug build of apps/macos/XDRemuxApp.