docs: align consolidated solver workflow

phases/linear-static-3d-euler-beam/step28.md

@@ -13,23 +13,23 @@
 - `/docs/ARCHITECTURE.md`
 - `/docs/ADR.md`
 - `/docs/releases/README.md`
-- `/docs/requirements/linear-static-3d-euler-beam.md`
-- `/docs/research/linear-static-3d-euler-beam-research.md`
-- `/docs/formulations/3d-isoparametric-euler-beam-formulation.md`
-- `/docs/numerical-reviews/linear-static-3d-euler-beam-review.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/implementation-plans/linear-static-3d-euler-beam-implementation-report.md`
-- `/docs/build-test-reports/linear-static-3d-euler-beam.md`
-- `/docs/reference-verifications/linear-static-3d-euler-beam-reference-verification.md`
-- `/docs/physics-evaluations/linear-static-3d-euler-beam-physics-evaluation.md`
+- `/docs/linear-static-3d-euler-beam/requirements.md`
+- `/docs/linear-static-3d-euler-beam/research.md`
+- `/docs/linear-static-3d-euler-beam/formulation.md`
+- `/docs/linear-static-3d-euler-beam/numerical-review.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`
+- `/docs/linear-static-3d-euler-beam/implementation-report.md`
+- `/docs/linear-static-3d-euler-beam/build-test.md`
+- `/docs/linear-static-3d-euler-beam/reference-comparison.md`
+- `/docs/linear-static-3d-euler-beam/physics-evaluation.md`
 - `/phases/linear-static-3d-euler-beam/index.json`의 모든 completed summary
 
 ## 작업
 
 모든 gate evidence를 감사하고
-`docs/releases/linear-static-3d-euler-beam-release.md`를 생성하라.
+`docs/linear-static-3d-euler-beam/release.md`를 생성하라.
 
 - 같은 feature ID, source design revision, implementation scope와 artifact identity가 모든
   문서에서 일치하는지 확인한다.
@@ -52,9 +52,9 @@
 
 ```powershell
 $gates = @{
-  'docs/build-test-reports/linear-static-3d-euler-beam.md' = 'status: `pass-for-reference-verification`'
-  'docs/reference-verifications/linear-static-3d-euler-beam-reference-verification.md' = 'status: `pass-for-physics-evaluation`'
-  'docs/physics-evaluations/linear-static-3d-euler-beam-physics-evaluation.md' = 'status: `pass-for-release-agent`'
+  'docs/linear-static-3d-euler-beam/build-test.md' = 'status: `pass-for-reference-verification`'
+  'docs/linear-static-3d-euler-beam/reference-comparison.md' = 'status: `pass-for-physics-evaluation`'
+  'docs/linear-static-3d-euler-beam/physics-evaluation.md' = 'status: `pass-for-release-agent`'
 }
 foreach ($entry in $gates.GetEnumerator()) {
   if (-not (Select-String -LiteralPath $entry.Key -SimpleMatch $entry.Value -Quiet)) {
@@ -68,7 +68,7 @@ if (($phase.steps | Where-Object { $_.step -lt 28 -and $_.status -ne 'completed'
 ```
 
 ```powershell
-$path = 'docs/releases/linear-static-3d-euler-beam-release.md'
+$path = 'docs/linear-static-3d-euler-beam/release.md'
 if (-not (Test-Path $path)) { throw "Missing $path" }
 $required = @('status: `ready-for-release`', '## Release Scope', '## Gate Evidence Inventory',
   '## Acceptance Traceability', '## Validation Evidence', '## Known Limitations',