feat: track explicit debugger and profiler configuration

[nargokul]

Issue #, if available:

N/A

Description of changes:

• Record whether debugger_hook_config and profiler_config were provided directly to an estimator before SDK defaults and training preparation transform those values.
• Extend the telemetry emitter with opt-in instance attribute fields.
• Emit x-debuggerHookConfigExplicitlyProvided and x-profilerConfigExplicitlyProvided on estimator.fit.

Testing done:

• PYTHONPATH=/tmp/sagemaker-v2-test-deps:src python -m pytest -q tests/unit/test_estimator.py (276 passed)
• PYTHONPATH=/tmp/sagemaker-v2-test-deps:src python -m pytest -q tests/unit/sagemaker/telemetry/test_telemetry_logging.py (19 passed)
• Black, Flake8, and git diff --check

Merge Checklist

General

• I certify that the changes I am introducing will be backward compatible.
• I used the commit message format described in CONTRIBUTING.
• No S3 or STS clients are introduced by this change.
• No documentation updates are required for internal telemetry fields.

Tests

• I have added tests that prove the feature works.
• I have added unit tests to ensure backward compatibility.
• The tests are not configured for a specific account.
• No dependencies are added.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.