ruby binding 追加

- FFI gem (libptouch)、exe ptouch-print-png（PNG のみ）
- ステータス 32 バイトを Hash に展開（parse_status / status_hash）
- CMake: libptouch 共有ライブラリ（ptouch_shared）
- RuboCop、gemspec（homepage / source_code_uri）

Made-with: Cursor

CMakeLists.txt

@@ -22,14 +22,24 @@ configure_file(
 )
 
 add_library(ptouch STATIC src/libptouch.c)
+add_library(ptouch_shared SHARED src/libptouch.c)
+set_target_properties(ptouch_shared PROPERTIES OUTPUT_NAME ptouch
+	SOVERSION ${PROJECT_VERSION_MAJOR})
 target_include_directories(ptouch PUBLIC
 	"$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>"
 	"$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>"
 	"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
 )
+target_include_directories(ptouch_shared PUBLIC
+	"$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>"
+	"$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>"
+	"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
+)
 target_link_libraries(ptouch PRIVATE PkgConfig::LIBUSB PNG::PNG)
+target_link_libraries(ptouch_shared PRIVATE PkgConfig::LIBUSB PNG::PNG)
 if(NOT MSVC)
 	target_compile_options(ptouch PRIVATE -Wall -Wextra -Wpedantic)
+	target_compile_options(ptouch_shared PRIVATE -Wall -Wextra -Wpedantic)
 endif()
 
 add_executable(ptouch-print src/cli/main.c)
@@ -40,6 +50,8 @@ if(NOT MSVC)
 endif()
 
 install(TARGETS ptouch ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}")
+install(TARGETS ptouch_shared LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+	RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
 install(TARGETS ptouch-print RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
 install(FILES
 	"${CMAKE_CURRENT_SOURCE_DIR}/include/libptouch.h"