docs(shell-surface-pressure-load): close release workflow

docs/shell-surface-pressure-load/coordination.md

@@ -3,12 +3,12 @@
 ## 1. Metadata and Feature Scope
 
 - feature_id: `shell-surface-pressure-load`
-- workflow_state: `needs-release`
+- workflow_state: `completed`
 - owner_agent: `coordinator-agent`
 - request_date: `2026-08-30`
 - last_updated: `2026-09-01`
 - process_classification: `architectural`
-- current_goal: Gates 1–7의 passing evidence와 acceptance traceability를 독립 감사해 release readiness를 판정한다.
+- current_goal: Gates 1–8 owner evidence와 `ready-for-release` recommendation을 기록하고 내부 feature workflow를 closure한다.
 - approved_scope: Abaqus subset `*SURFACE, TYPE=ELEMENT`와 `*DSLOAD`의 uniform `P`를 S4/S4R `SPOS|SNEG` surface에 적용한다. Linear static은 reference configuration load를, nonlinear static은 current-configuration follower load와 external tangent를 사용한다.
 - scope_boundaries: Unsupported surface/load variants는 fail-closed로 거부하고 stable source identity와 deterministic load/reduction order를 보존한다. 기존 authoritative HDF5 output을 우선 유지하되 Stage 5 I/O gate가 evidence로 최종 확정한다.
 - reference_case: `reference/shellNL-meshfine-pressure/`의 existing `.inp`와 CSV를 exact path/name 그대로 read-only 사용한다.
@@ -27,7 +27,7 @@
 | 5. I/O definition | `io-definition-agent` | `passed` | `docs/shell-surface-pressure-load/io.md` | Abaqus subset, semantic mapping, diagnostics, HDF5 projection과 reference rows가 명확함 | `ready-for-implementation-planning`; exact assembly `SURFACE`/step `DSLOAD P`, Domain/Step/AnalysisModel mapping, ordered fail-closed validation, unchanged schema `0/1`, exact HDF5/reference projection, trace 24/24; owner `passed`; Coordinator audit 통과 | 없음 | 1 |
 | 6. Implementation | `implementation-planning-agent`; `implementation-agent` | `passed` | `docs/shell-surface-pressure-load/implementation-plan.md`; `docs/shell-surface-pressure-load/implementation-report.md`; `docs/shell-surface-pressure-load/build-test.md`; `docs/shell-surface-pressure-load/reference-comparison.md`; `docs/shell-surface-pressure-load/corrections.md` | 승인 계획, TDD evidence, MSVC/x64/Debug build/CTest와 blocking reference comparison이 모두 통과함 | Harness Steps 1–7 completed; focused `64/64`, pressure reference `9/9`, final automatic Stop build PASS/full `362/362 PASS`, 0 failed; requirements trace `24/24`; post-hook reports는 historical evidence와 `pass-for-physics-evaluation`을 기록함 | 없음 | 2 |
 | 7. Physics evaluation | `physics-evaluation-agent` | `passed` | `docs/shell-surface-pressure-load/physics-evaluation.md` | Direction, symmetry, resultant, reaction과 equilibrium 검토가 `pass-for-release-agent`임 | Owner `pass-for-release-agent`; documented pressure direction/sign, current-area resultant/moment, reactions/equilibrium, symmetry/zero behavior, follower objectivity, residual/nonfinite sanity와 declared model coverage 통과; normalized force/moment balance `6.76e-14`/`3.72e-14 <= 1e-8`; Coordinator output/status/no-change audit 통과 | 없음 | 1 |
-| 8. Release readiness | `release-agent` | `in-progress` | `docs/shell-surface-pressure-load/release.md` | Acceptance traceability와 limitation을 포함한 verdict가 `ready-for-release`임 | `GATE8-REL-001` dispatch 준비 | 없음 | 1 |
+| 8. Release readiness | `release-agent` | `passed` | `docs/shell-surface-pressure-load/release.md` | Acceptance traceability와 limitation을 포함한 verdict가 `ready-for-release`임 | Owner `ready-for-release`; Gates 1–7 consistent, must requirements `24/24` traced, full `362/362`, focused `64/64`, reference `9/9`, U/UR `2187/2187`, physics force/moment balance evidence와 11개 known limitations/release notes 포함; Coordinator output/status/no-change audit 통과 | 없음 | 1 |
 
 ## 3. Active Dispatch Package and Latest Sub-Agent Return
 
@@ -200,7 +200,7 @@
 - stop_condition: Physics report와 owner return evidence 제출 후 중지한다. Source/tests/CMake/reference/tolerance/upstream contracts를 수정하거나 Abaqus를 실행하거나 Gate 8을 수행하지 않는다.
 - missing_evidence: 없음
 
-### Active Dispatch — Gate 8 Release Readiness
+### Completed Dispatch — Gate 8 Release Readiness
 
 - dispatch_id: `GATE8-REL-001`
 - feature_id: `shell-surface-pressure-load`
@@ -209,18 +209,18 @@
 - expected_outputs: `docs/shell-surface-pressure-load/release.md`
 - acceptance_gate: Required reports가 같은 feature/status로 일치하고 full `362/362` validation, `pass-for-physics-evaluation`, `pass-for-release-agent`가 확인되며 각 `must` requirement가 acceptance/test/reference/release scope와 추적되고 known limitations 및 release notes draft를 포함한 verdict가 `ready-for-release`임.
 - stop_condition: Release report와 owner return evidence 제출 후 중지한다. Source/tests/CMake/reference/tolerance/upstream contracts를 수정하거나 build/test/Harness/reference solver를 실행하거나 publish/deploy/package/tag/commit/push하지 않는다.
-- missing_evidence: Release Agent report와 closure recommendation
+- missing_evidence: 없음
 
 ### Latest Sub-Agent Return
 
-- target_sub_agent: `physics-evaluation-agent`
-- output_paths: `docs/shell-surface-pressure-load/physics-evaluation.md`
-- status: `pass-for-release-agent`
-- evidence_summary: `pass-for-physics-evaluation` 선행 조건을 확인하고 documented pressure direction/sign, current-area resultant/moment, reactions/equilibrium, displacement direction, symmetry/zero behavior, follower objectivity, residual/nonfinite sanity와 declared model coverage를 통과로 판정함. Stored HDF5를 read-only 재검사한 normalized force/moment balance는 `6.758e-14`/`3.725e-14 <= 1e-8`이며 release readiness 자체는 승인하지 않음.
+- target_sub_agent: `release-agent`
+- output_paths: `docs/shell-surface-pressure-load/release.md`
+- status: `ready-for-release`
+- evidence_summary: Gates 1–7 status/evidence consistency, must requirements `24/24` acceptance/test/reference/release trace, full `362/362`, focused `64/64`, reference `9/9`, U/UR `2187/2187`, physics force/moment balance와 exact artifact immutability를 감사함. Known limitations 11개와 release notes draft를 포함하고 내부 closure를 권고함.
 - blockers: 없음
-- open_evidence_gaps: Gate 8 release readiness audit 대기
+- open_evidence_gaps: 없음
 - critical_user_question: 없음
-- forbidden_area_assertion: `physics-evaluation.md`만 생성; source, tests, CMake, phases, upstream contracts, generated evidence, `docs/TOLERANCE.md`, reference artifact 변경 없음
+- forbidden_area_assertion: `release.md`만 생성; source, tests, CMake, phases, upstream reports, generated evidence, `docs/TOLERANCE.md`, reference artifact 변경 없음; build/test/reference solver 재실행 없음
 
 ## 4. Gate Decision Log and Workflow State
 
@@ -247,6 +247,7 @@
 | 2026-09-01 | `GATE7-PHYS-001` | `pending` | Exactly one Physics Evaluation Agent의 independent physical plausibility evidence 대기 | `needs-physics-evaluation` |
 | 2026-09-01 | `GATE7-PHYS-001` | `passed` | Owner `pass-for-release-agent`; `physics-evaluation.md`가 documented pressure direction/sign, resultant/moment, reaction/equilibrium, symmetry/zero, follower objectivity/current-area, residual/nonfinite와 declared model coverage를 통과로 판정함. Coordinator audit에서 required sections, input handoff, `6.76e-14`/`3.72e-14 <= 1e-8`, blocker 없음과 physics-only no-change 확인 | `needs-release` |
 | 2026-09-01 | `GATE8-REL-001` | `pending` | Exactly one Release Agent의 gate inventory, acceptance traceability, limitations와 closure recommendation 대기 | `needs-release` |
+| 2026-09-01 | `GATE8-REL-001` | `passed` | Owner `ready-for-release`; `release.md`가 11 required sections, Gates 1–7 consistent, must trace `24/24`, full/focused/reference/physics passing evidence, known limitations와 release notes를 포함함. Coordinator audit에서 required output/status/blocker/no-change 및 internal-only release boundary 확인 | `completed` |
 
 ## 5. Risk, Blocker, and User-Decision Register
 
@@ -269,14 +270,15 @@
 
 - normalized_failure_attempts: `upstream-io-contract-mismatch` 1회 교정 완료; `environment/sandbox-msvc-filetracker-access-denied` 1회 recovery routing 완료; `harness-parallel-duplicate-full-verification-timeout` 2회 관측, first Correction Agent response explicitly dispatched
 - automatic_rework_limit: 동일 normalized failure classification `2`회
-- current_attempt: Gate 7 attempt 1 완료; Gate 8 attempt 1; `post-hook-evidence-amendment` 1회 완료; implementation Steps 1–7 완료; correction 1회 완료; `implementation-planning` 1회 완료; phase materialization 1회 완료; Gates 1–7 완료
+- current_attempt: Gate 7 attempt 1 완료; Gate 8 attempt 1 완료; `post-hook-evidence-amendment` 1회 완료; implementation Steps 1–7 완료; correction 1회 완료; `implementation-planning` 1회 완료; phase materialization 1회 완료; Gates 1–8 완료
 - stop_condition: 동일 classification이 2회이면 자동 재작업을 중단하고 `needs-user-decision` 또는 `blocked`로 전환한다.
 
 ## 7. Final Workflow Closure
 
-- closure_status: `pending`
+- closure_status: `completed`
 - required_evidence: Gates 1–8 owner evidence와 `release.md`의 `ready-for-release` recommendation
-- current_boundary: Gates 1–7 passed; Gate 8 Release Readiness active; final closure는 owner `ready-for-release` evidence 전 금지.
+- closure_evidence: Gates 1–8 `passed`; `release.md` status `ready-for-release`; must trace `24/24`; blocker 및 open evidence gap 없음.
+- current_boundary: Internal feature workflow closed. Publish, deploy, package, tag, merge, push 또는 external release는 별도 명시 권한 없이는 수행하지 않는다.
 
 ## 8. No-Change Assertion
 
@@ -292,3 +294,4 @@
 - specialist_change: Requirement Agent가 `requirements.md`, Research Agent가 `research.md`, Formulation Agent가 `formulation.md`, Numerical Review Agent가 `numerical-review.md`와 `reference-model.md`, I/O Definition Agent가 `io.md`, Implementation Planning Agent가 `implementation-plan.md`를 각각 생성함
 - gate6_evidence_change: Implementation Agent가 `implementation-report.md`, `build-test.md`, `reference-comparison.md`를 완성하고 post-hook final Stop evidence를 report-only amendment로 반영함; reference/tolerance 변경 없음
 - gate7_evidence_change: Physics Evaluation Agent가 `physics-evaluation.md`만 생성하고 existing HDF5/log/reference evidence를 read-only 감사함; source/tests/CMake/contracts/reference/tolerance/generated evidence 변경 없음
+- gate8_evidence_change: Release Agent가 `release.md`만 생성하고 Gates 1–7과 acceptance traceability를 감사함; source/tests/CMake/upstream reports/reference/tolerance/generated evidence 변경 및 build/test/reference solver 재실행 없음

docs/shell-surface-pressure-load/release.md

@@ -0,0 +1,242 @@
+# Shell Surface Pressure Load 릴리스 준비 보고서
+
+## 1. Metadata
+
+- feature_id: `shell-surface-pressure-load`
+- status: `ready-for-release`
+- owner_agent: `release-agent`
+- date: `2026-09-01`
+- audited_head: `e5e8ccc8ff84a97e64ab2bc1889b5ab7aaae1c77`
+- physics_evaluated_commit: `1eb4dce885175b78b8229b095f14cac102ea93df`
+- workflow_basis: Gates 1–7 Coordinator-audited passed
+- authoritative_output: input lexical sibling `<stem>_results.h5`
+- tolerance_authority: `docs/TOLERANCE.md`
+- source_docs: `requirements.md`, `research.md`, `formulation.md`, `numerical-review.md`, `reference-model.md`, `io.md`, `implementation-plan.md`
+- source_reports: `implementation-report.md`, `build-test.md`, `reference-comparison.md`, `corrections.md`, `physics-evaluation.md`
+
+본 판정은 FESA 기능 전달 workflow의 내부 release readiness에 한정한다. Publish, deploy,
+package, tag, merge, commit, push 또는 외부 배포 권한을 부여하지 않는다.
+
+## 2. Release Scope
+
+| 구분 | 포함 범위 |
+| --- | --- |
+| 기능 | Assembly-level `*SURFACE, TYPE=ELEMENT, NAME=<name>`의 `SPOS|SNEG` member에 step-level `*DSLOAD`의 uniform finite scalar `P`를 적용 |
+| analysis type | 단일 linear static의 reference-configuration pressure, 단일 `NLGEOM=YES` full-Newton nonlinear static의 current-configuration follower pressure와 external tangent |
+| elements | Source type과 label을 보존하는 four-node `S4`, `S4R`; 기존 FESA MITC4 선택 |
+| materials/sections | 기존 linear isotropic elastic MITC4 shell material/section; 이 기능은 material 범위를 확장하지 않음 |
+| load semantics | Positive `P`는 selected surface normal 반대 방향, negative `P`는 방향 반전, load factor는 정확히 한 번 적용 |
+| assembly/physics | Stable full-DOF external load/tangent assembly, free/constrained projection, reaction/free residual, current-arm global force/moment equilibrium, deterministic ordering |
+| input subset | Direct `<instance>.<element-label>` member와 explicit `INSTANCE=`에 결속된 flat assembly ELSET member; case-insensitive lookup과 stable raw/source identity |
+| result scope | 기존 schema `0`/`1` HDF5의 displacement, generalized force/residual, reaction, global equilibrium 및 기존 MITC4 result chain; 새 pressure-only dataset 없음 |
+| reference scope | Exact stored nonlinear S4/SPOS/positive-`P` case의 factor-one nodal `U1/U2/U3` blocking, `UR1/UR2/UR3` warning-only comparison |
+| artifact scope | Runtime authoritative artifact는 `<stem>_results.h5`; CSV는 external reference/debug evidence이며 FESA product output이 아님 |
+
+Release 범위에서 제외되는 핵심 항목은 `*DLOAD`, nonuniform/field/user pressure,
+node/edge/double-sided/contact surface, S4/S4R 이외 element, material nonlinearity, dynamics,
+thermal/contact/buckling, multiple-step propagation, surface offset/thickness-side correction,
+pressure-only result quantity 및 다른 solver 내부 알고리즘과의 동등성 주장이다.
+
+## 3. Gate Evidence Inventory
+
+| Gate evidence | feature/status 감사 결과 | release disposition |
+| --- | --- | --- |
+| `requirements.md` | 동일 feature, must `001`–`024`; 초기 `draft-for-coordinator-gate-review` label을 유지하지만 Coordinator Gate 1 통과 및 이후 전 단계의 binding baseline으로 사용됨 | pass |
+| `research.md` | 동일 feature; 초기 gate-review label을 유지하며 formulation/reference 범위와 non-equivalence 경계가 후속 문서에 반영됨 | pass |
+| `formulation.md` | `ready-for-numerical-review`; force/tangent/sign/configuration/assembly 계약이 `numerical-review.md`에서 독립 승인됨 | pass |
+| `numerical-review.md` | `pass-for-io-definition`; `tau_J=1.0e-12`, analytical/objectivity/tangent/equilibrium gate 확정 | pass |
+| `reference-model.md` | `pass-for-io-definition`; exact required input/CSV, row identity, U/UR disposition과 immutable artifact contract 확정 | pass |
+| `io.md` | `ready-for-implementation-planning`; input subset, semantic identity, diagnostics, schema `0`/`1`, HDF5-to-CSV projection 확정 | pass |
+| `implementation-plan.md` | archival pre-execution label은 `draft-awaiting-user-approval`; 승인 후 materialized Steps 1–7 실행 및 Gate 6 보고서로 plan 이행이 입증됨 | pass |
+| `implementation-report.md` | `pass-for-physics-evaluation` 권고; TDD Steps 1–6와 final evidence audit 완료 | pass |
+| `build-test.md` | focused `64/64`, pressure reference `9/9`, automatic Stop full MSVC/CTest `362/362`, `0 failed`, 새 `/W4 /WX` warning 없음 | pass |
+| `reference-comparison.md` | explicit `pass-for-physics-evaluation`; precheck 통과, U blocking `2187/2187`, UR warning-only `2187/2187`, 두 family row/RMS 모두 pass | pass |
+| `corrections.md` | 중복 full-verification Harness timeout을 implementation defect와 분리하고 단일 Stop owner로 교정; 이후 full `362/362`로 해소됨 | resolved/pass |
+| `physics-evaluation.md` | `pass-for-release-agent`; force/moment normalized balance `6.758e-14`/`3.725e-14 <= 1e-8`, blocker 없음 | pass |
+
+Staleness 감사에서 Physics Agent가 평가한 `1eb4dce`는 현재 HEAD의 ancestor이며, 그 이후
+변경은 `coordination.md`와 `physics-evaluation.md`뿐이다. 평가 후 source, test, CMake,
+reference artifact 또는 tolerance 변경은 없다. 초기 문서의 archival status label과
+`implementation-report.md`의 compact requirement/evidence shorthand는 Coordinator 승인,
+`implementation-plan.md` §11, 실제 named-suite inventory, reference 및 physics evidence로
+교차 확인했다. Release acceptance를 바꾸는 미해결 상태·범위·수치 모순은 없다.
+
+### Release Checklist
+
+- [x] 필수 Gate 1–7 문서가 모두 존재하고 `feature_id`가 일치한다.
+- [x] Full MSVC x64 Debug build/CTest evidence가 `362/362 PASS`, `0 failed`다.
+- [x] `reference-comparison.md`가 `pass-for-physics-evaluation`이고 required comparison file이 모두 존재한다.
+- [x] `physics-evaluation.md`가 `pass-for-release-agent`다.
+- [x] Must requirement `24/24`가 acceptance, test/internal model, required external reference 및 release disposition에 연결된다.
+- [x] Exact input/CSV hash와 path가 구현 전후 동일하다.
+- [x] Blocking U family, warning-only UR family 및 internal equilibrium evidence가 모두 pass했다.
+- [x] Unsupported/deferred 범위와 accepted limitations를 사용자-facing하게 기록했다.
+- [x] Unresolved implementation defect, missing declared comparison file, tolerance 변경 또는 upstream decision이 없다.
+- [x] 이 판정이 외부 release 권한이 아님을 명시했다.
+
+## 4. Acceptance Traceability
+
+`test id`는 `implementation-plan.md`의 TDD ID와 실제 passing named suite를 함께 나타낸다.
+`BM-*`는 `research.md`의 bounded verification model이며, external case가 필요한 항목에는
+`shellnl-meshfine-pressure-s4-follower`를 명시한다.
+
+| requirement id | compact acceptance criterion | test id / passing evidence | reference model id | verification report | release disposition |
+| --- | --- | --- | --- | --- | --- |
+| `FESA-REQ-SHELL-PRESSURE-001` | Approved SURFACE+DSLOAD S4/S4R mapping과 identity 보존 | `T-INPUT-VALID`; `InpSyntax`, `ShellSurfacePressureInput` | `BM-07` + internal valid fixtures | `build-test.md` | included/pass |
+| `FESA-REQ-SHELL-PRESSURE-002` | Positive/zero/negative finite scalar exact-once, nonfinite reject | `T-INPUT-VALID`, `T-INPUT-NEG`; `ShellSurfacePressureDomain` | `BM-01`, `BM-08` | `build-test.md` | included/pass |
+| `FESA-REQ-SHELL-PRESSURE-003` | Unique deterministic instance/element/side inventory와 order | `T-INPUT-VALID`, `T-ASSEMBLY`; `SurfacePressureAssembly` | `BM-03` | `build-test.md` | included/pass |
+| `FESA-REQ-SHELL-PRESSURE-004` | Only S4/S4R and SPOS/SNEG; source type/label 보존 | `T-INPUT-VALID`, `T-INPUT-NEG`; target rejection cases | `BM-01`, `BM-08` | `build-test.md` | constraint/pass |
+| `FESA-REQ-SHELL-PRESSURE-005` | Positive pressure는 selected normal 반대, negative는 정확히 반전 | `T-KERNEL-FORCE`; `ReversesExactlyForSposSnegAndNegativeMagnitude` | `BM-01` | `build-test.md`, `physics-evaluation.md` | physics/pass |
+| `FESA-REQ-SHELL-PRESSURE-006` | Connectivity-derived SPOS normal과 SNEG inverse | `T-KERNEL-FORCE`; sign/connectivity kernel cases | `BM-01`, `BM-02` | `build-test.md`, `physics-evaluation.md` | physics/pass |
+| `FESA-REQ-SHELL-PRESSURE-007` | Linear pressure는 reference area/normal에서 displacement-independent | `T-KERNEL-FORCE`, `T-LINEAR`; `LinearShellSurfacePressure` | `BM-01`, `BM-02` | `build-test.md` | included/pass |
+| `FESA-REQ-SHELL-PRESSURE-008` | NLGEOM pressure는 current `X+u` follower load | `T-KERNEL-FORCE`, `T-NONLINEAR`; current-area/objectivity cases | `BM-04`, `BM-07` | `build-test.md`, `physics-evaluation.md` | physics/pass |
+| `FESA-REQ-SHELL-PRESSURE-009` | External follower-force derivative가 Newton tangent에 포함 | `T-KERNEL-TANGENT`, `T-NONLINEAR`; centered FD/sign cases | `BM-05`, `BM-06` | `build-test.md`, `physics-evaluation.md` | numerical/pass |
+| `FESA-REQ-SHELL-PRESSURE-010` | Step load factor `0/0.5/1`을 정확히 한 번 적용 | `T-ASSEMBLY`, `T-LINEAR`, `T-NONLINEAR`; factor cases | `BM-03`, `BM-06` | `build-test.md` | numerical/pass |
+| `FESA-REQ-SHELL-PRESSURE-011` | Stable full-DOF external load/tangent 후 projection | `T-ASSEMBLY`, `T-LINEAR`; full-space/order cases | `BM-03` | `build-test.md` | included/pass |
+| `FESA-REQ-SHELL-PRESSURE-012` | Pressure가 constrained reaction과 free residual에 포함 | `T-LINEAR`, `T-NONLINEAR`; reaction/residual/balance cases | `BM-01`, `BM-06`, `BM-07` | `reference-comparison.md`, `physics-evaluation.md` | physics/pass |
+| `FESA-REQ-SHELL-PRESSURE-013` | Resolution/reduction/result/diagnostic/comparison order 결정적 | `T-INPUT-VALID`, `T-ASSEMBLY`, `T-NONLINEAR`, `T-REF-COMPARE` | `BM-03`, `BM-07` | `build-test.md`, `reference-comparison.md` | constraint/pass |
+| `FESA-REQ-SHELL-PRESSURE-014` | Unsupported SURFACE/DSLOAD variant fail-closed | `T-INPUT-NEG`; `ShellSurfacePressureInput` negative matrix | `BM-08` | `build-test.md` | constraint/pass |
+| `FESA-REQ-SHELL-PRESSURE-015` | Missing/empty/ambiguous/conflicting/scope target fail-closed | `T-INPUT-NEG`; mapping failure/no-partial-candidate cases | `BM-08` | `build-test.md` | constraint/pass |
+| `FESA-REQ-SHELL-PRESSURE-016` | Unsupported procedure, nonfinite, invalid geometry fail-closed | `T-INPUT-NEG`, `T-KERNEL-TANGENT`, `T-NONLINEAR`; rollback cases | `BM-04`, `BM-05`, `BM-08` | `build-test.md` | constraint/pass |
+| `FESA-REQ-SHELL-PRESSURE-017` | Stable diagnostics와 failed candidate/output atomicity | `T-INPUT-NEG`, `T-CLI-HDF5`, `T-NONLINEAR`; final preservation cases | `BM-08` | `build-test.md` | output/pass |
+| `FESA-REQ-SHELL-PRESSURE-018` | 기존 schema `0/1` HDF5만 authoritative; 새 pressure dataset 없음 | `T-CLI-HDF5`; schema/no-new-path writer regressions | `BM-07` | `implementation-report.md`, `build-test.md` | output/pass |
+| `FESA-REQ-SHELL-PRESSURE-019` | Existing displacement/reaction/residual/equilibrium/result chain finite | `T-LINEAR`, `T-NONLINEAR`, `T-REF-COMPARE` | `BM-06`, `BM-07` | `reference-comparison.md`, `physics-evaluation.md` | output/pass |
+| `FESA-REQ-SHELL-PRESSURE-020` | Linear S4/S4R sign/resultant/reaction/mesh-order suite 통과 | `T-KERNEL-FORCE`, `T-LINEAR`; analytical suites | `BM-01`–`BM-03` | `build-test.md`, `physics-evaluation.md` | verification/pass |
+| `FESA-REQ-SHELL-PRESSURE-021` | Objectivity/current-area/tangent/residual/global balance 통과 | `T-KERNEL-TANGENT`, `T-NONLINEAR`; force/moment `<=1e-8` | `BM-04`–`BM-06`, `BM-07` | `reference-comparison.md`, `physics-evaluation.md` | verification/pass |
+| `FESA-REQ-SHELL-PRESSURE-022` | Exact required input/CSV를 current path에서 read-only 사용 | `T-REF-PRECHECK`, `E-FINAL`; hash/size pre/post match | `shellnl-meshfine-pressure-s4-follower` | `reference-comparison.md` | verification/pass |
+| `FESA-REQ-SHELL-PRESSURE-023` | Factor-one source-key mapping, U blocking/UR warning, precheck first | `T-REF-PRECHECK`, `T-REF-COMPARE`, `E-FINAL`; `2187+2187` | `shellnl-meshfine-pressure-s4-follower` | `reference-comparison.md` | verification/pass |
+| `FESA-REQ-SHELL-PRESSURE-024` | Reaction CSV review-only, stress CSV excluded, internal balance 유지 | `T-REF-COMPARE`; no reaction/stress verdict family | `shellnl-meshfine-pressure-s4-follower` | `reference-comparison.md`, `physics-evaluation.md` | constraint/pass |
+
+Trace result: must requirements `24`, release-scoped rows `24`, orphan `0`, deferred must `0`,
+missing feature-required comparison files `0`.
+
+## 5. Validation Evidence
+
+| evidence | command / source | result |
+| --- | --- | --- |
+| Configure | `cmake --fresh -S . -B .harness/build -G "Visual Studio 18 2026" -A x64 ...` | exit `0`; MSVC 19.51.36252.0 |
+| Focused build | `cmake --build .harness/build --config Debug --target fesa_unit_tests fesa_integration_tests fesa_reference_tests` | exit `0`; new warning `0` |
+| Discovery | `ctest --test-dir .harness/build -C Debug --show-only=json-v1` | `362` discovered, feature suites nonzero |
+| Focused CTest | `ctest --test-dir .harness/build -C Debug --output-on-failure -R "^(InpSyntax|ShellSurfacePressureInput|ShellSurfacePressureDomain|ShellSurfacePressureKernel|SurfacePressureAssembly|LinearShellSurfacePressure|NonlinearShellSurfacePressure|ShellSurfacePressureApplication|ShellSurfacePressureReference)\."` | `64/64 PASS` |
+| FESA reference execution | `fesa.exe .harness/build/reference/shell-surface-pressure-load/shellNL-meshfine-pressure.inp` | exit `0`; factor-one increment accepted; schema-1 HDF5 atomic publish |
+| Pressure comparison | `ctest --test-dir .harness/build -C Debug --output-on-failure -R "^ShellSurfacePressureReference\."` | `9/9 PASS` before and after generated HDF5 |
+| Automatic Stop build | `cmake --build .harness/build --config Debug` | PASS |
+| Automatic Stop full CTest | `ctest --test-dir .harness/build -C Debug --output-on-failure` | `362/362 PASS`, `0 failed` |
+| Harness Python pytest | N/A | Harness/Python behavior 및 file 변경이 없어 upstream plan/report에서 적용 대상이 아님 |
+
+Reference artifact pre/post evidence:
+
+- Required input: SHA-256 `53718ccc9b41c23fcc1b509a51d66f1347e87aca43a74f1d6cec4d2085f4b90e`, `56,665` bytes, unchanged.
+- Required displacement CSV: SHA-256 `2fe53f98eac9f04779100721c3edf8049eb1dbfe733ebcbd819aeeed03b81198`, `111,182` bytes, unchanged.
+- `pressure_nodal_translation_blocking`: `2187/2187` rows pass, relative RMS `5.18831997081359e-5 <= 0.01`.
+- `pressure_nodal_rotation_warning`: `2187/2187` rows pass, relative RMS `3.10406152731217e-4 <= 0.01`; warning `0`.
+- Accepted free translation residual: `6.12848863188238e-11 <= 1e-2`.
+- Accepted free rotation residual: zero-external-scale branch `1.3758908607997e-6 <= 1e-3`.
+- Physics re-evaluation: normalized force balance `6.758e-14`, moment balance `3.725e-14`, each `<=1e-8`.
+
+## 6. Known Limitations
+
+1. 입력은 assembly-level `TYPE=ELEMENT` surface와 uniform `DSLOAD P`의 승인 subset뿐이다.
+   `*DLOAD`, `P n`, `PNU`, `HP`, `VP`, `SP`, `TRVEC`, `TRSHR`, nonuniform/user pressure,
+   `AMPLITUDE`, `FOLLOWER`, `OP`, `REF NODE`, `*INCLUDE`와 승인되지 않은 parameter는 지원하지 않는다.
+2. Surface는 single-sided `SPOS|SNEG` four-node `S4`/`S4R`만 지원한다. Node/edge/double-sided,
+   analytical/contact surface, part-level surface, implicit/mixed-instance ELSET, transformed instance,
+   S3/S8/solid/continuum-shell/membrane/beam/rigid element는 범위 밖이다.
+3. 단일 linear static 또는 단일 approved `NLGEOM=YES` full-Newton static step만 지원한다.
+   Dynamics, thermal, contact, buckling perturbation, cavity/pipe pressure와 multiple-step propagation은 제외된다.
+4. 기존 linear isotropic elastic MITC4 material/section만 사용한다. Material nonlinearity,
+   composite/hyperelastic/plastic section, surface offset, thickness-face arm/correction 및 pressure
+   distributed couple은 지원하지 않는다.
+5. Pressure는 midsurface translational generalized force를 만든다. Rotational pressure entries는
+   exact zero이며 physical global moment는 force arm으로 평가한다. Invalid/collapsed/folded current
+   surface는 `tau_J=1.0e-12` gate에서 fail-closed한다.
+6. Authoritative output은 기존 `<stem>_results.h5`뿐이며 surface/load 또는 pressure-only dataset은
+   추가되지 않는다. CSV는 product output이 아니다.
+7. Stored external case는 `S4`, `SPOS`, positive `P=1e6`, `NLGEOM=YES` nonlinear displacement만
+   직접 검증한다. `S4R`, `SNEG`, negative/zero pressure, linear path, objectivity와 tangent는
+   passing blocking internal tests로 보완되며 별도 external reference case는 없다.
+8. `UR1/UR2/UR3` external comparison은 contract상 `warning-only`다. 이번 evidence에서는 모두
+   통과했지만 향후 warning-only mismatch는 blocking U verdict를 바꾸지 않는다.
+9. Reaction CSV는 `review-only`, stress CSV는 `excluded`다. Local reaction distribution이나
+   stress agreement을 external acceptance로 주장하지 않으며 internal residual/equilibrium gate를 사용한다.
+10. 직접 적용 가능한 public S4/S4R follower-pressure benchmark가 없다는 연구 한계가 있다.
+    Analytical/kernel/solution tests와 exact stored case로 보완했으며 실험 validation을 주장하지 않는다.
+11. FESA는 독립 solver다. Abaqus를 포함한 다른 solver의 내부 formulation, quadrature,
+    stabilization, tangent 또는 result-generation equivalence를 주장하지 않는다.
+
+Deferred must requirement, unresolved defect, accepted blocking risk 또는 release-blocking open item은 없다.
+
+## 7. Release Notes Draft
+
+### 사용자-facing 요약
+
+FESA는 이제 승인된 Abaqus `.inp` subset에서 assembly named element surface의 `S4`/`S4R`
+`SPOS` 또는 `SNEG` 면에 uniform `*DSLOAD P`를 적용할 수 있다. Linear static에서는 reference
+surface를, `NLGEOM=YES` nonlinear static에서는 current surface follower force와 consistent
+external tangent를 사용한다. Pressure는 기존 full-space load, reaction/free residual,
+global equilibrium 및 HDF5 result lifecycle에 통합된다.
+
+### 검증 범위
+
+- MSVC x64 Debug full CTest `362/362 PASS`, focused feature tests `64/64 PASS`.
+- Exact stored nonlinear case에서 factor-one U blocking `2187/2187`, UR warning-only
+  `2187/2187` rows pass.
+- Factor-one normalized global force/moment balance는 각각 `6.758e-14`, `3.725e-14`로
+  승인 gate `1e-8`을 통과했다.
+- S4R, side/sign reversal, linear reference pressure, current-area objectivity, external tangent와
+  invalid geometry는 독립 internal analytical/FD/fail-closed tests로 검증했다.
+
+### 주요 제한 및 사용 주의
+
+이 release는 single-step linear 또는 approved nonlinear static, four-node S4/S4R, existing
+linear-isotropic MITC4 section과 uniform single-sided pressure만 지원한다. `*DLOAD`, nonuniform
+pressure, amplitude, node/edge/contact/double-sided surface, 다른 element/procedure/material 및
+surface offset/thickness correction은 지원하지 않는다. Model-consistent unit system을 사용해야
+하며 invalid current surface geometry는 fail-closed한다. UR은 warning-only이고 reaction/stress
+CSV는 external verdict 대상이 아니다. Abaqus 내부 동등성이나 실험 validation은 주장하지 않는다.
+
+### Artifact paths
+
+- Runtime authoritative output: input lexical sibling `<stem>_results.h5`
+- Required reference input: `reference/shellNL-meshfine-pressure/shellNL-meshfine-pressure.inp`
+- Required comparison CSV: `reference/shellNL-meshfine-pressure/shellNL-meshfine-pressure displacements.csv`
+- Release record: `docs/shell-surface-pressure-load/release.md`
+
+## 8. Release Verdict
+
+**Verdict: `ready-for-release`.**
+
+필수 upstream gate, full build/test, blocking reference comparison과 physics evaluation이 모두
+통과했다. Must requirement `24/24`가 release scope, acceptance criterion, implementation/test
+또는 applicable reference evidence와 최종 disposition에 연결되고, known limitations가
+release notes에 포함되었다. Missing/failed/stale required evidence, unresolved defect,
+missing comparison file, tolerance conflict 또는 physics blocker는 없다.
+
+이 verdict는 FESA 내부 feature delivery closure recommendation이며 외부 release 행위를
+승인하지 않는다.
+
+## 9. Handoff Recommendation
+
+Coordinator Agent는 Gate 8을 `passed`로 기록하고 `shell-surface-pressure-load` workflow를
+내부적으로 closure하는 것을 권고한다. 추가 Correction, Implementation, Physics Evaluation
+또는 upstream decision return은 필요하지 않다. Publish, deploy, package, tag, merge, commit,
+push 또는 external release는 별도 명시적 권한 없이는 수행하지 않는다.
+
+## 10. No-Change Assertion
+
+Release Agent는 이 감사에서 `docs/shell-surface-pressure-load/release.md`만 생성했다. Source,
+public/private header, test, CMake, build/Harness configuration, phase files, upstream feature
+documents/reports, `coordination.md`, reference input/CSV, generated HDF5/log,
+`docs/TOLERANCE.md` 및 tolerance policy는 수정하지 않았다. Abaqus, Nastran 또는 다른
+reference solver를 실행하지 않았고 build, CTest, Harness 또는 FESA CLI를 재실행하지 않았다.
+
+## 11. Open Issues
+
+- Missing evidence: 없음.
+- Contradictory upstream verdict/status/value: 없음. Archival pre-gate metadata와 compact
+  trace shorthand는 Coordinator 승인 및 actual passing evidence로 교차 확인되었다.
+- Unresolved defects or failed corrections: 없음. Harness duplicate-verification timeout correction은
+  이후 automatic Stop full `362/362 PASS`로 해소되었다.
+- Missing declared comparison files or mappings: 없음.
+- Release documentation gap: 없음.
+- Blockers: 없음.