preparation for ui re-shelling

docs/modules/ui/v2-rewire/S00_handoff_packet.md

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+# S00 Handoff Packet
+
+Status: Placeholder (created for sprint planning pointer integrity)
+Date: 2026-02-18
+
+## Upstream artifacts
+- `S00_advisory_sources_spec.md`
+- `S00_nav_rendering_policy.md`
+- `S00_trust_ownership_transition.md`
+- `S00_route_deprecation_map.md`
+- `S00_endpoint_contract_ledger_v1.md`
+
+## Downstream target sprints
+- `SPRINT_20260218_006_FE_ui_v2_rewire_navigation_shell_route_migration.md`
+- `SPRINT_20260218_007_FE_ui_v2_rewire_administration_foundation.md`
+- `SPRINT_20260218_008_FE_ui_v2_rewire_integrations_platform_ops_data_integrity.md`
+
+## Current status
+- This packet is a planning placeholder and will be expanded when sprint `20260218_005` reaches DONE.