finish(CUST-WP-0054): workstation independence engineering closeout

Complete T04–T08: bulk Forgejo remote_url migration for all registered
repos, phase 5 stabilization tooling, dev-hub beachhead artifacts, and
phoenix drill runbook. Archive workplan with T09/T10 as operator gates.

tools/cancel-duplicate-hub-tasks.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# Cancel duplicate CUST-WP-0054 hub tasks created during 2026-07-07 workstream recreation.
+set -euo pipefail
+
+API_BASE="${API_BASE:-http://127.0.0.1:8000}"
+
+DUPLICATES=(
+  ced0f63b-2af0-452e-95e0-76a74637a7a5
+  2d05e885-8d97-4fd7-9736-dadae91c81a4
+  0f0f9e53-8e99-4ace-a8ca-6dcd4df387e7
+  47a0526d-17b9-4e46-ad41-c3d7b71d06f1
+  4c6f8cd8-4b7b-40ee-9c1c-633d251f4e6b
+  47385d99-b09c-4e40-8836-f09061d45ee1
+  5ca2d557-c352-401d-89d7-f204fd3ebb4b
+  34d93dbc-08f6-4182-803d-0f60ceddcbea
+  b2ddee15-10df-4fe8-9955-f3b653b8f529
+  5d02c7af-f4e8-494a-b0fe-9d7c21573ce3
+)
+
+for id in "${DUPLICATES[@]}"; do
+  http=$(curl -sS -o /tmp/task-patch.json -w '%{http_code}' \
+    -X PATCH "${API_BASE}/tasks/${id}" \
+    -H "Content-Type: application/json" \
+    -d '{"status":"cancel","intervention_note":"Duplicate from 2026-07-07 workstream recreation; canonical task retained in workplan."}')
+  if [[ "$http" == "200" ]]; then
+    echo "CANCEL ${id}"
+  elif [[ "$http" == "404" ]]; then
+    echo "SKIP  ${id} (not found)"
+  else
+    echo "FAIL  ${id} http=${http}" >&2
+    cat /tmp/task-patch.json >&2
+  fi
+done