eval: fold GEMM/allreduce harnesses into self-contained milestone benches

Move the GEMM + allreduce sweep/render logic out of scripts/ and tests/
into two self-contained eval benches so a user can regenerate every
result + figure with one command:

  kernbench run --bench milestone-1h-gemm   (MILESTONE_FAST=1 reuses JSON)
  kernbench run --bench milestone-1h-ccl

- benches/milestone_1h_{gemm,ccl}.py: single home for each domain; the
  run(torch) entry drives the sweeps and writes figures into
  benches/1H_milestone_output/{gemm,ccl}/ (gitignored), then submits a
  sentinel tensor to satisfy the run_bench contract.
- tests/gemm + tests/sccl helpers and scripts/gemm_sweep.py become thin
  re-export/wrapper shims over the benches (single source preserved); the
  pytest-only param builders + _run_distributed wrapper stay in the shim.
- eval-bench pattern: a bench may drive many configs + build its own
  per-config engines (extends ADR-0045 D5; reverses ADR-0044 D1/D2).

ADR-0054 (EN+KO) records the design; ADR-0043/0044/0045 + CLAUDE.md CLI
Semantics amended; ADR INDEX regenerated. Verified: milestone benches run
clean (ok=True, all artifacts), full suite 67 passed, lang-pairs OK.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/adr-ko/ADR-0045-prog-bench-module-contract.md

@@ -10,6 +10,10 @@ Accepted (2026-05-21).
 **bench가 어떻게 등록되고 어떤 함수 시그너처를 따라야 하는가**는 ADR 레벨에
 없었음.
 
+**ADR-0054로 확장됨**: D5의 단일 구성 규칙에 세 번째 패턴이 추가된다 —
+*평가 bench*(예: `milestone-1h-*`)는 여러 구성을 구동하고, 구성별 자체 엔진을
+빌드하며, D4를 만족시키기 위해 sentinel 텐서를 제출한다.
+
 ## First action (제일 처음에 하는 일)
 
 `kernbench.benches` 패키지가 임포트되면 `__init__.py` 가 즉시