fix：备份恢复密钥

scripts/resource-restore/apply-resource-backup.sh

@@ -161,12 +161,37 @@ health_check() {
   }
   command -v curl >/dev/null 2>&1 || fail "curl command not found for health check" "HEALTH_CHECK"
   local timeout="${HEALTH_CHECK_TIMEOUT_SECONDS:-5}"
-  local response
-  response="$(curl -fsS --max-time "${timeout}" "${url}")" || fail "health check request failed" "HEALTH_CHECK"
-  if [[ "${response}" != *"UP"* ]]; then
-    fail "health check did not return UP" "HEALTH_CHECK"
-  fi
-  log "health check passed"
+  local max_wait="${HEALTH_CHECK_MAX_WAIT_SECONDS:-180}"
+  local interval="${HEALTH_CHECK_RETRY_INTERVAL_SECONDS:-5}"
+  [[ "${max_wait}" =~ ^[0-9]+$ ]] || max_wait=180
+  [[ "${interval}" =~ ^[0-9]+$ ]] || interval=5
+  local start_time
+  start_time="$(date +%s)"
+  local attempt=1
+  local response=""
+  local curl_output
+  while true; do
+    curl_output="$(curl -fsS --max-time "${timeout}" "${url}" 2>&1)" && response="${curl_output}" || {
+      log "[WARN] health check attempt ${attempt} failed: ${curl_output}"
+      response=""
+    }
+    if [[ "${response}" == *"UP"* ]]; then
+      log "health check passed after ${attempt} attempt(s)"
+      return 0
+    fi
+    if [[ -n "${response}" ]]; then
+      log "[WARN] health check attempt ${attempt} did not return UP: ${response}"
+    fi
+    local now
+    now="$(date +%s)"
+    if (( now - start_time >= max_wait )); then
+      fail "health check request failed after ${max_wait}s" "HEALTH_CHECK"
+    fi
+    if (( interval > 0 )); then
+      sleep "${interval}"
+    fi
+    attempt=$((attempt + 1))
+  done
 }
 
 mkdir -p "${WORK_DIR}"