refactor: Replace hyphens from paths (#4701)

Signed-off-by: tzulingk@nvidia.com <tzulingk@nvidia.com>

tests/fault_tolerance/hardware/fault-injection-service/agents/gpu-fault-injector/agent.py → tests/fault_tolerance/hardware/fault_injection_service/agents/gpu_fault_injector/agent.py

@@ -43,7 +43,9 @@ logger = logging.getLogger(__name__)
 # Import kernel-level XID injector (for XID 79 via nsenter+kmsg)
 GPUXIDInjectorKernel: Optional[Type[Any]] = None
 try:
-    from gpu_xid_injector import GPUXIDInjectorKernel  # type: ignore[assignment]
+    from gpu_xid_injector import (  # type: ignore[no-redef, assignment]
+        GPUXIDInjectorKernel,
+    )
 
     KERNEL_XID_AVAILABLE = True
 except ImportError:

tests/fault_tolerance/hardware/fault-injection-service/cuda-fault-injection/README.md → tests/fault_tolerance/hardware/fault_injection_service/cuda_fault_injection/README.md

@@ -62,8 +62,8 @@ This library simulates **software/orchestration-level failures** that occur when
 import sys
 from pathlib import Path
 
-# Add cuda-fault-injection to path
-cuda_injection_dir = Path(__file__).parent.parent / "cuda-fault-injection"
+# Add cuda_fault_injection to path
+cuda_injection_dir = Path(__file__).parent.parent / "cuda_fault_injection"
 sys.path.insert(0, str(cuda_injection_dir))
 
 from inject_into_pods import (

tests/fault_tolerance/hardware/fault-injection-service/helpers/cuda_fault_injection.py → tests/fault_tolerance/hardware/fault_injection_service/helpers/cuda_fault_injection.py

@@ -34,7 +34,7 @@ class CUDAFaultInjector:
                     If None, uses default relative to this module.
         """
         if lib_dir is None:
-            lib_dir = Path(__file__).parent.parent / "cuda-fault-injection"
+            lib_dir = Path(__file__).parent.parent / "cuda_fault_injection"
 
         self.lib_dir = lib_dir
         self.lib_path = lib_dir / "fake_cuda_xid79.so"