archive: P4b 方案包归档至 history/2026-05/

- plan/ → history/2026-05/20260509_p4b_runtime_surface_consolidation/
- tasks.md: archive_ready → true
- history/index.md: 新增 P4b 条目
- blueprint/tasks.md: P4b 引用改为归档路径

Context-Checkpoint: blueprint, plan

Author: Li-Sanze

.sopify-skills/blueprint/tasks.md

@@ -53,9 +53,9 @@
 
 ✅ 已完成。Frozen External Surface keep-list（15 条）+ Output Rendering Audit（20 条字段分类 + 5 个已知热点）。纯文档变更，不写运行代码。归档：`history/2026-05/20260509_p4a_external_surface_freeze/`
 
-### P4b: Runtime Surface Consolidation（已完成，待归档）
+### P4b: Runtime Surface Consolidation（已完成）
 
-✅ 已完成。prove-kept-or-delete 全量扫描证明 runtime 在当前 contract 约束下已接近最小可行体积（24,334 LOC）。<20K 目标在不改 distribution/installer contract 的约束下不可达。交付物：Phase 0 test re-audit（653 hard / 31 soft gate）、Phase 1 CI/preflight 真实降载、Phase 2 全量死代码扫描（15 LOC 删除）。详见 `plan/20260509_p4b_runtime_surface_consolidation/design.md` Phase 2 执行结论。方案包尚在 `plan/`，归档至 `history/` 待后续执行。
+✅ 已完成。prove-kept-or-delete 全量扫描证明 runtime 在当前 contract 约束下已接近最小可行体积（24,334 LOC）。<20K 目标在不改 distribution/installer contract 的约束下不可达。交付物：Phase 0 test re-audit（653 hard / 31 soft gate）、Phase 1 CI/preflight 真实降载、Phase 2 全量死代码扫描（15 LOC 删除）。归档：`history/2026-05/20260509_p4b_runtime_surface_consolidation/`
 
 ### P4b.5: Runtime Optionality & Host Onboarding Audit（待开）
 

…time_surface_consolidation/background.md …time_surface_consolidation/background.md.sopify-skills/plan/20260509_p4b_runtime_surface_consolidation/background.md renamed to .sopify-skills/history/2026-05/20260509_p4b_runtime_surface_consolidation/background.md .sopify-skills/plan/20260509_p4b_runtime_surface_consolidation/background.md renamed to .sopify-skills/history/2026-05/20260509_p4b_runtime_surface_consolidation/background.md

@@ -8,7 +8,7 @@ knowledge_sync:
   background: skip
   design: update
   tasks: update
-archive_ready: false
+archive_ready: true
 plan_status: completed
 ---
 

…_runtime_surface_consolidation/design.md …_runtime_surface_consolidation/design.md.sopify-skills/plan/20260509_p4b_runtime_surface_consolidation/design.md renamed to .sopify-skills/history/2026-05/20260509_p4b_runtime_surface_consolidation/design.md .sopify-skills/plan/20260509_p4b_runtime_surface_consolidation/design.md renamed to .sopify-skills/history/2026-05/20260509_p4b_runtime_surface_consolidation/design.md

@@ -4,6 +4,7 @@
 
 ## 索引
 
+- `2026-05-09` [`20260509_p4b_runtime_surface_consolidation`](2026-05/20260509_p4b_runtime_surface_consolidation/) - standard - P4b Runtime Surface Consolidation: prove-kept-or-delete 全量扫描证明 runtime 已近最小体积（24,334 LOC），实删 15 LOC，<20K 目标在现有 contract 约束下不可达
 - `2026-05-09` [`20260509_host_capability_governance`](2026-05/20260509_host_capability_governance/) - standard - Host Capability Governance（P4a→P4c bridge）：3 级 canonical 梯度定义 + 接入判定 Checklist + Convention Quickstart 最小交付面 + Prompt 镜像治理原则
 - `2026-05-09` [`20260509_p4a_external_surface_freeze`](2026-05/20260509_p4a_external_surface_freeze/) - standard - P4a External Surface Freeze: Frozen External Surface keep-list（15 条）+ Output Rendering Audit（20 条字段分类）
 - `2026-05-08` [`20260508_p3b_perimeter_cleanup`](2026-05/20260508_p3b_perimeter_cleanup/) - standard - 任务清单: P3b Perimeter Cleanup