migration: audit uncertain code and prepare handoff

docs/migration/保真迁移状态.json

@@ -1,7 +1,7 @@
 {
   "schema_version": 1,
-  "updated_at": "2026-07-31T12:30:00+08:00",
-  "status": "active",
+  "updated_at": "2026-07-31T16:10:00+08:00",
+  "status": "awaiting_manual_acceptance",
   "migration_mode": "behavior_preserving_source_migration",
   "source_of_truth": "current_original_webapp_runtime_and_source",
   "source_root": ".",
@@ -11,8 +11,9 @@
   ],
   "current_slice": "slice-11-uncertain-code-audit-final-acceptance-handoff",
   "last_completed_slice": "slice-10-frontend-shell-pages-components-css-mobile",
-  "last_checkpoint": "xiaobai-preservation-slice-10-20260731",
-  "next_action": "commit_and_push_slice_10_then_audit_each_uncertain_asset_with_independent_evidence_and_retain_any_asset_not_proven_safe_to_remove",
+  "last_automated_slice": "slice-11-uncertain-code-audit-final-acceptance-handoff",
+  "last_checkpoint": "xiaobai-preservation-slice-11-candidate-20260731",
+  "next_action": "user_acceptance_on_local_port_8797_then_confirm_or_restore_each_trial_retirement; do_not_switch_docker_or_nas_before_approval",
   "authoritative_documents": [
     "AGENTS.md",
     "docs/migration/原版保真迁移总纲.md",
@@ -27,7 +28,8 @@
     "preserve_visual_interaction_animation_calculation_and_data_semantics",
     "require_old_new_differential_evidence_for_every_slice",
     "keep_original_runtime_available",
-    "do_not_delete_uncertain_code"
+    "do_not_make_trial_retirements_permanent_before_user_acceptance",
+    "do_not_switch_docker_or_nas_before_user_approval"
   ],
   "approved_decisions": {
     "target_directory_name": "app",
@@ -35,5 +37,9 @@
     "migration_slice_order": "approved_2026-07-30",
     "execution_mode": "autonomous_until_complete"
   },
-  "open_decisions": []
+  "open_decisions": [
+    "user_acceptance_of_visual_interaction_and_animation_equivalence",
+    "final_confirmation_or_restore_of_slice_11_trial_retirements",
+    "local_and_docker_switch_timing"
+  ]
 }