fix(detector): detect aliased method default replay

[prasannakotyal]

KernelGuard-Red-Submission: 298

Detects entrypoints assigned to class methods that replay from a mutable default argument.

The pass requires:

• module-level custom_kernel = Class.method aliasing
• a class method with a mutable default storage parameter
• a no-compute fast path whose test does not depend on the live input
• a fast-path return from that default storage
• mutation of the default storage inside the method

Local validation:

• uv run python -m py_compile kernelguard.py
• uv run python /home/nino/repos/paradigma/kernelguard_bypasses/eval_blue_patch.py /home/nino/repos/paradigma/competition_state/kernelguard_mirror/kernelguard.py

Target red fixture: red_134_classmethod_default_replay.py

[github-actions]

KernelGuard Blue Evaluation

• Evaluation job: 119
• Blue submission: 91
• Result: passed
• Target red submission caught: True
• Validation suite: TP 20/20, FP 20/20
• Surgicalness score: 1.0
• Workflow run: https://github.com/SinatrasC/kernelguard/actions/runs/25253884841

[SinatrasC]

Thanks for the KernelGuard Flywheel Campaign contribution. This PR is now superseded by the consolidated rule-family implementation in #273, which folds this detector coverage together with the related passing-eval variants.