[perf] fix: fix profiler discrete mode unavailability

[tongtong0613]

What does this PR do?

• Fix the issue where profiling cannot be collected in discrete mode, for both NPU and nsys.
• Adjust the corresponding unit tests accordingly.
• Adjust the npu profiler script due to changes in ref.yaml

In discrete mode, distribution is handled through the annotate class method of the DistProfiler class in verl/utils/profiler/profile.py. Adjust the annotat method of NPUProfiler and NsightSystemsProfiler to be instance method.

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[gemini-code-assist]

Code Review

This pull request fixes an issue with the profiler's discrete mode by changing the annotate methods in NPUProfiler and NsightSystemsProfiler from static methods to instance methods. This allows them to access instance-specific state. A new implementation for DistProfiler.annotate is introduced to delegate calls to the specific profiler's annotate method. The changes are logical and correctly address the issue. I've added one high-severity comment regarding silent exception handling in verl/utils/profiler/profile.py, which could hide bugs and make debugging difficult. The corresponding test files have been updated correctly to reflect these changes.

[gemini-code-assist]

Catching a broad Exception and silently ignoring it can hide significant issues and make debugging very difficult. If there's an error in the profiler's annotate method (e.g., a TypeError due to incorrect arguments), it will be suppressed, and the profiler will just fail to work without any indication of what went wrong. It's better to log the exception to aid in debugging potential problems with the profiling setup. You'll need to add import logging at the top of the file.

Suggested change

	try:
	actual_decorator = impl.annotate(
	message=message,
	color=color,
	domain=domain,
	category=category,
	**kwargs
	)
	return actual_decorator(func)(self_instance, *args, **kwargs_inner)
	except Exception as e:
	return func(self_instance, *args, **kwargs_inner)
	try:
	actual_decorator = impl.annotate(
	message=message,
	color=color,
	domain=domain,
	category=category,
	**kwargs
	)
	return actual_decorator(func)(self_instance, *args, **kwargs_inner)
	except Exception:
	logging.warning("Failed to apply profiler annotation", exc_info=True)
	return func(self_instance, *args, **kwargs_inner)

[FightingZhen]

LGTM, can we merge it? @vermouth1992