docs: finalize preservation migration acceptance

docs/migration/保真迁移状态.json

@@ -1,7 +1,7 @@
 {
   "schema_version": 1,
-  "updated_at": "2026-08-01T03:14:46+08:00",
-  "status": "awaiting_manual_acceptance",
+  "updated_at": "2026-08-01T09:42:04+08:00",
+  "status": "completed_local_handoff",
   "migration_mode": "behavior_preserving_source_migration",
   "source_of_truth": "current_original_webapp_runtime_and_source",
   "source_root": ".",
@@ -10,10 +10,10 @@
     "next"
   ],
   "current_slice": "slice-11-strict-completion-audit-maintenance-handoff",
-  "last_completed_slice": "slice-10-frontend-shell-pages-components-css-mobile",
+  "last_completed_slice": "slice-11-strict-completion-audit-maintenance-handoff",
   "last_automated_slice": "slice-11-strict-completion-audit-maintenance-handoff",
-  "last_checkpoint": "xiaobai-preservation-slice-11-audit-candidate-standalone-20260801",
-  "next_action": "user_acceptance_on_local_port_8797_then_confirm_or_restore_each_trial_retirement; do_not_switch_docker_or_nas_before_approval",
+  "last_checkpoint": "xiaobai-preservation-complete-20260801",
+  "next_action": "preservation_migration_complete; keep the original runtime as the deployment rollback baseline until a separately approved local or Docker/NAS switch",
   "authoritative_documents": [
     "AGENTS.md",
     "docs/migration/原版保真迁移总纲.md",
@@ -35,11 +35,17 @@
     "target_directory_name": "app",
     "target_directory_structure": "approved_2026-07-30",
     "migration_slice_order": "approved_2026-07-30",
-    "execution_mode": "autonomous_until_complete"
+    "execution_mode": "autonomous_until_complete",
+    "manual_visual_and_functional_acceptance": "approved_2026-08-01",
+    "slice_11_trial_retirements": "confirmed_retired_2026-08-01"
+  },
+  "manual_acceptance": {
+    "accepted_at": "2026-08-01T09:42:04+08:00",
+    "runtime": "http://127.0.0.1:8797/",
+    "scope": "all pages and all user-testable functions",
+    "result": "visual and functional preservation accepted; observed issues were predominantly original-version legacy issues, with no migration regression found that blocks acceptance"
   },
   "open_decisions": [
-    "user_acceptance_of_visual_interaction_and_animation_equivalence",
-    "final_confirmation_or_restore_of_slice_11_trial_retirements",
     "local_and_docker_switch_timing"
   ]
 }