diff --git a/scripts/seed-testdata.sh b/scripts/seed-testdata.sh
new file mode 100755
index 0000000..8c0a232
--- /dev/null
+++ b/scripts/seed-testdata.sh
@@ -0,0 +1,140 @@
+#!/bin/bash
+# Generiert realistische HACCP-Testdaten für die letzten 30 Tage
+
+set -euo pipefail
+
+PB_URL="${PB_URL:-https://api.checkflo.de}"
+
+if [ -z "${PB_EMAIL:-}" ] || [ -z "${PB_PASSWORD:-}" ]; then
+  echo "Aufruf: PB_EMAIL=... PB_PASSWORD=... ./seed-testdata.sh"
+  exit 1
+fi
+
+TOKEN=$(curl -sf -X POST "$PB_URL/api/collections/_superusers/auth-with-password" \
+  -H "Content-Type: application/json" \
+  -d "{\"identity\":\"$PB_EMAIL\",\"password\":\"$PB_PASSWORD\"}" | jq -r '.token')
+
+echo "✓ Eingeloggt"
+
+TENANT_ID="mengbzc3ajxpccz"
+
+# Stationen als JSON laden
+STATIONS_JSON=$(curl -sf "$PB_URL/api/collections/stations/records?filter=tenant%3D'$TENANT_ID'&perPage=50" \
+  -H "Authorization: $TOKEN")
+
+STATION_COUNT=$(echo "$STATIONS_JSON" | jq '.items | length')
+echo "→ $STATION_COUNT Stationen gefunden"
+
+NAMES=("Maria S." "Klaus B." "Sandra M." "Tobias R." "Anna K." "Michael F." "Lisa W.")
+NOTES_ABW=("Tür stand leicht offen" "Dichtung prüfen" "Kompressor läuft laut" "Temperatur leicht erhöht" "Nach Lieferung noch warm")
+NOTES_KRIT=("Tür war 2h offen" "Kompressor ausgefallen" "Sofortmaßnahme eingeleitet" "Produkte aussortiert" "Techniker verständigt")
+
+create_log() {
+  local station_id=$1
+  local date_str=$2
+  local status=$3
+  local temp=$4
+  local notes=$5
+  local person=$6
+
+  curl -sf -X POST "$PB_URL/api/collections/check_logs/records" \
+    -H "Authorization: $TOKEN" \
+    -H "Content-Type: application/json" \
+    -d "{
+      \"station\":    \"$station_id\",
+      \"tenant\":     \"$TENANT_ID\",
+      \"temperature\": $temp,
+      \"status\":     \"$status\",
+      \"notes\":      \"$notes\",
+      \"checked_by\": \"$person\",
+      \"created\":    \"$date_str\",
+      \"updated\":    \"$date_str\"
+    }" > /dev/null
+}
+
+rand_between() {
+  local min=$1
+  local max=$2
+  echo $(( min + RANDOM % (max - min + 1) ))
+}
+
+echo "→ Erstelle Einträge für die letzten 30 Tage..."
+COUNT=0
+
+for DAY in $(seq 29 -1 0); do
+  # Datum berechnen (macOS + Linux kompatibel)
+  if date -v -${DAY}d +"%Y-%m-%d" > /dev/null 2>&1; then
+    DATE=$(date -v -${DAY}d +"%Y-%m-%d")
+    DOW=$(date -v -${DAY}d +"%u")
+  else
+    DATE=$(date -d "-${DAY} days" +"%Y-%m-%d")
+    DOW=$(date -d "-${DAY} days" +"%u")
+  fi
+
+  for i in $(seq 0 $((STATION_COUNT - 1))); do
+    SID=$(echo "$STATIONS_JSON"  | jq -r ".items[$i].id")
+    TYPE=$(echo "$STATIONS_JSON" | jq -r ".items[$i].type")
+    TMIN=$(echo "$STATIONS_JSON" | jq -r ".items[$i].target_temp_min // 0")
+    TMAX=$(echo "$STATIONS_JSON" | jq -r ".items[$i].target_temp_max // 0")
+
+    PERSON=${NAMES[$((RANDOM % ${#NAMES[@]}))]}
+
+    if [ "$TYPE" = "kuehlschrank" ] || [ "$TYPE" = "tiefkuehl" ]; then
+      # Morgencheck
+      HOUR=$(rand_between 7 8)
+      MIN_T=$(rand_between 0 5)
+      SEC_T=$(rand_between 0 59)
+      TIME="${DATE} 0${HOUR}:$(printf "%02d" $MIN_T):$(printf "%02d" $SEC_T)"
+
+      RAND=$((RANDOM % 100))
+      if [ $RAND -lt 90 ]; then
+        TEMP=$(rand_between $TMIN $TMAX)
+        create_log "$SID" "$TIME" "ok" "$TEMP" "" "$PERSON"
+      elif [ $RAND -lt 98 ]; then
+        TEMP=$(( TMAX + 1 + RANDOM % 3 ))
+        NOTE=${NOTES_ABW[$((RANDOM % ${#NOTES_ABW[@]}))]}
+        create_log "$SID" "$TIME" "abweichung" "$TEMP" "$NOTE" "$PERSON"
+      else
+        TEMP=$(( TMAX + 4 + RANDOM % 5 ))
+        NOTE=${NOTES_KRIT[$((RANDOM % ${#NOTES_KRIT[@]}))]}
+        create_log "$SID" "$TIME" "kritisch" "$TEMP" "$NOTE" "$PERSON"
+      fi
+      COUNT=$((COUNT + 1))
+
+      # Abendcheck (Mo-Fr)
+      if [ "$DOW" -lt 6 ]; then
+        HOUR=$(rand_between 17 19)
+        TIME="${DATE} ${HOUR}:$(printf "%02d" $(rand_between 0 59)):00"
+        TEMP=$(rand_between $TMIN $TMAX)
+        create_log "$SID" "$TIME" "ok" "$TEMP" "" "$PERSON"
+        COUNT=$((COUNT + 1))
+      fi
+
+    elif [ "$TYPE" = "warmhalte" ]; then
+      TIME="${DATE} 11:$(printf "%02d" $(rand_between 0 30)):00"
+      RAND=$((RANDOM % 100))
+      if [ $RAND -lt 85 ]; then
+        TEMP=$(rand_between $TMIN $TMAX)
+        create_log "$SID" "$TIME" "ok" "$TEMP" "" "$PERSON"
+      else
+        TEMP=$(( TMIN - 3 - RANDOM % 5 ))
+        NOTE=${NOTES_ABW[$((RANDOM % ${#NOTES_ABW[@]}))]}
+        create_log "$SID" "$TIME" "abweichung" "$TEMP" "$NOTE" "$PERSON"
+      fi
+      COUNT=$((COUNT + 1))
+
+    elif [ "$TYPE" = "hygiene" ]; then
+      if [ "$DOW" -eq 1 ]; then
+        TIME="${DATE} 09:$(printf "%02d" $(rand_between 0 30)):00"
+        create_log "$SID" "$TIME" "ok" "0" "" "$PERSON"
+        COUNT=$((COUNT + 1))
+      fi
+    fi
+  done
+
+  printf "  Tag -%02d: %s (%s)..." "$DAY" "$DATE" "DOW $DOW"
+  echo " OK"
+done
+
+echo ""
+echo "  ✓ $COUNT Einträge erstellt"