Windows: ARM64EC support, long paths, and indirect OpenCL import patching

[milishar]

• Detect ARM64/ARM64EC platforms in CMake via CMAKE_GENERATOR_PLATFORM.
• cliloader: compare PE header machine types instead of IsWow64Process, which cannot distinguish ARM64EC from ARM64. Warn and continue if a type is unknown.
• cliloader: while loading the intercept DLL into the loader process, disable the controls that create log, trace, and report files, then restore them so the target process does not inherit the overrides.
• Skip the report at shutdown if no enqueues occurred.
• Patch the IAT of every loaded module so DLLs that import opencl.dll indirectly (e.g. SYCL runtimes) are also intercepted. Links Psapi.
• Add Utils::OpenOutputFile() and use it for all dump files. Together with CreateDirectoryW for dump directories, this uses the ?\ prefix on Windows to support paths longer than MAX_PATH.