docs: align consolidated solver workflow

phases/linear-static-3d-euler-beam/step24.md

@@ -11,11 +11,11 @@
 - `/AGENTS.md`
 - `/docs/ARCHITECTURE.md`
 - `/docs/ADR.md`
-- `/docs/requirements/linear-static-3d-euler-beam.md`
-- `/docs/formulations/3d-isoparametric-euler-beam-formulation.md`
-- `/docs/io-definitions/linear-static-3d-euler-beam-io.md`
-- `/docs/reference-models/linear-static-3d-euler-beam-reference-models.md`
-- `/docs/implementation-plans/linear-static-3d-euler-beam.md`
+- `/docs/linear-static-3d-euler-beam/requirements.md`
+- `/docs/linear-static-3d-euler-beam/formulation.md`
+- `/docs/linear-static-3d-euler-beam/io.md`
+- `/docs/linear-static-3d-euler-beam/reference-model.md`
+- `/docs/linear-static-3d-euler-beam/implementation-plan.md`
 - `/include/fesa/io/abaqus/input_reader.hpp`
 - `/include/fesa/io/abaqus/domain_mapper.hpp`
 - `/include/fesa/analysis/analysis_model.hpp`
@@ -151,7 +151,7 @@ git diff --exit-code -- reference/
 2. exact lifecycle과 minimal CLI/test utility로 targeted GREEN을 만든다.
 3. approved input end-to-end, comparison metrics, CTest discovery/full VERIFY를 실행한다.
 4. reference artifacts가 unchanged인지 확인한다.
-5. `/docs/implementation-plans/linear-static-3d-euler-beam-implementation-report.md`의
+5. `/docs/linear-static-3d-euler-beam/implementation-report.md`의
    Step 24 section에 실제 RED/GREEN/VERIFY command, exit code,
    핵심 output, 변경 파일과 generated HDF5/comparison evidence를 기록한다.
 6. Step 24를 `completed`로 갱신하고 CLI path, exit codes, generated HDF5/metrics와