Fixed file open operations on Windows for bash command output: The bash command runner now opens its output log file using the portable string flag "w" (write) on Windows, instead of the bitwise POSIX flags O_WRONLY | O_CREAT | O_TRUNC, which may not behave correctly on Windows. Non-Windows platforms continue to use the POSIX flags with O_NOFOLLOW for symlink safety. (search for process.platform === "win32" in pj1 at line ~269290)
Fixed file open operations on Windows for task output appending: The task output writer class now opens files using the portable string flag "a" (append) on Windows, instead of the bitwise POSIX flags O_WRONLY | O_APPEND | O_CREAT. Previously, there was no Windows-specific handling in this code path. (search for process.platform === "win32" in class z31 at line ~130992)
Fixed file open operations on Windows for task output creation: The task output file creation function now uses the portable string flag "wx" (exclusive write) on Windows, instead of the bitwise POSIX flags O_WRONLY | O_CREAT | O_EXCL. This ensures exclusive-create semantics work correctly on Windows. (search for process.platform === "win32" in bq8 at line ~131075)
