#!/bin/bash
# ============================================================================
# rq-historical — eng begrenzter root-Wrapper fuer Red Queen (rq-host)
# RED-QUEEN-VPS-HOST-ACCESS + READONLY-CODE + DEV/TEST/DEPLOY + SOT-DISCOVERY
# | Rain Ocampo (Hermes) | 2026-08-29
#
# LEAST-PRIVILEGE-Design:
#   - rq-host hat KEINE docker-Gruppe, KEINEN Docker-Socket, KEIN sudo ALL,
#     KEINE Root-Shell. Einziger Root-Kanal: NOPASSWD:/usr/local/bin/rq-historical
#   - Dieser Wrapper ist der EINZIGE Kanal zu historical-service & Host-SoT.
#     Keine freien Pfade, kein arbitrary cat/find/grep, kein Shell.
#
# SoT-DISCOVERY (read-only, NO copy/rebuild/deploy/fix):
#   build-def          -> zeigt Dockerfile + Compose-Builddefinition (redacted)
#   build-files        -> Dockerfile + compose + .dockerignore Auflistung
#   host-manifest      -> SHA256+size aller *.py unter /opt/historical-v2/app
#   host-code <rel>    -> gezielter Code-Read NUR aus host-manifest (kontrolliert)
#   container-manifest -> SHA256+size aller *.py unter historical-service:/app/app
#   container-code <rel> -> gezielter Code-Read NUR aus container-manifest
#   tree-diff          -> Host vs Container Manifest-Diff
#
# SUBKOMMANDOS (bestehend, unveraendert):
#   ps | inspect | logs [--tail N] | run [..] | code <KEY> | hashes | code-list
#   stage-dir | stage-check <KEY> | test <KEY> | search-writes | healthcheck
#   backup <KEY> | deploy <KEY> | rollback <KEY>
# ============================================================================
set -euo pipefail

CONTAINER=historical-service
HOST_APP=/opt/historical-v2/app
HOST_DIR=/opt/historical-v2

# --------------------------------------------------------- Allowlist (fest)
declare -A TARGET_PATHS=(
  [runner]="/app/app/run_backfill_year.py"
  [backfill]="/app/app/backfill.py"
  [pipeline]="/app/app/pipeline_v2.py"
  [repository]="/app/app/persistence/repository.py"
  [provenance]="/app/app/trust/provenance.py"
  [trust]="/app/app/trust/trust.py"
  [sanity]="/app/app/trust/sanity.py"
  [trust_gate]="/app/app/trust/trust_gate.py"
)
declare -A STAGE_FILES=(
  [runner]="run_backfill_year.py" [backfill]="backfill.py" [pipeline]="pipeline_v2.py"
  [repository]="repository.py" [provenance]="provenance.py" [trust]="trust.py"
  [sanity]="sanity.py" [trust_gate]="trust_gate.py"
)
STAGING_ROOT=/opt/rq-historical-staging
BACKUP_ROOT=/opt/rq-historical-backups
SCRIPT=/app/app/run_backfill_year.py

# --------------------------------------------------------- HOST-SOT-RECOVERY
# CONFIRMED GOLD CONTAINER -> ROOT-CONTROLLED BACKUP -> EXACT BYTE COPY
# -> HOST SOURCE OF TRUTH -> SHA VERIFY -> STOPP.  (Phase 13.5, Extension 1)
# KEIN Build/Recreate in dieser Mission.
SOT_BACKUP_ROOT=/opt/rq-historical-sot-backups
SOT_SESSION_MARKER=".rq-sot-session"   # eindeutige Markierung der Recovery-Session

# Recovery-Allowlist: KEY -> "CONTAINER_SRC|HOST_TARGET|EXPECTED_GOLD_SHA"
# Containerpfade aus container-manifest verifiziert (NICHT geraten).
# HINWEIS: Aufgabe nennt trust/init.py, Container hat aber trust/__init__.py
# (Gold-SHA 059db627...). Punkt 5: exakte Pfade aus Manifest, nicht raten.
declare -A RECOVERY=(
  [backfill]="/app/app/backfill.py|/opt/historical-v2/app/backfill.py|1627682ae582bb13343ae8ea10491dd9dffaef6fa4f7594d85378c2a500e81c7"
  [repository]="/app/app/persistence/repository.py|/opt/historical-v2/app/persistence/repository.py|8fff892f52a612f464b5be21c66ef7787a47f2d7d049f815ef87837553c2a228"
  [pipeline]="/app/app/pipeline_v2.py|/opt/historical-v2/app/pipeline_v2.py|7c08ec3d1e75854cf341b9cbfd12afc075c4a173518dd3d951be4f95c5175fe6"
  [trust_init]="/app/app/trust/__init__.py|/opt/historical-v2/app/trust/__init__.py|059db62741f2001f548d1879ccd3bf73bb2f4c8d0f492d151a469c9e4dcd3934"
  [provenance]="/app/app/trust/provenance.py|/opt/historical-v2/app/trust/provenance.py|4dd2ab977b69e9a47bb744dcc742a94d506e13035157a3977cdc7c8924d5f16f"
  [trust]="/app/app/trust/trust.py|/opt/historical-v2/app/trust/trust.py|7c2a948d2f1d668201e5af2a28164bcb2451b31d514a9f5f22b435c9ff2a0d01"
  [sanity]="/app/app/trust/sanity.py|/opt/historical-v2/app/trust/sanity.py|875b07869e5148983e7a06bc05f6a6bec30727d1b5e95242d459564c18f6d6e9"
  [trust_gate]="/app/app/trust/trust_gate.py|/opt/historical-v2/app/trust/trust_gate.py|df0a97a1fc27985fe49b7458d94f7922bc5eaf2250807043c48dbc173f215ff1"
  [diag_bi5]="/app/app/diag_bi5.py|/opt/historical-v2/app/diag_bi5.py|3e07ec5c4d9f572a118c278d0dc5c86865a8fe2067b12f85a3fa958ea4013efa"
  [smoke_readonly]="/app/app/smoke_readonly.py|/opt/historical-v2/app/smoke_readonly.py|85ca939c11d789684740833f0bddb6e4f2a548a7f94870662191b75aefdcbfd6"
  [smoke_trust_gate]="/app/app/smoke_trust_gate.py|/opt/historical-v2/app/smoke_trust_gate.py|f015fe650d6934b0c71d70bc3011f16b7f4bb0d2ffd947b9127040067442cfff"
  [test_trust_gate]="/app/app/test_trust_gate.py|/opt/historical-v2/app/test_trust_gate.py|7867e2b526491de966e64486e8d49ec2cad204d97efc25844562b867ef861114"
  [test_phase13_3]="/app/app/test_phase13_3_reproduction.py|/opt/historical-v2/app/test_phase13_3_reproduction.py|de7d2f7be785b7525a045b91ca055dca305fd7d575b291528141f000d5d003e7"
)
# Host-Only-Legacy (Punkt 9): NICHT anfassen
HOST_ONLY_LEGACY=(
  "/opt/historical-v2/app/app/backfill.py"
  "/opt/historical-v2/app/app/test_idempotency.py"
  "/opt/historical-v2/app/eligibility.py"
)

# --------------------------------------------------------- BUILD/RECREATE-KANAL
# Phase 13.5 · Controlled No-op Build/Recreate Channel.
# Build-Pollution-Exclusion via .dockerignore (präzise, NUR Legacy-Artefakte).
# KEIN Businesscode-Fix. KEIN Backfill-Runner in diesem Kanal.
COMPOSE_PROJECT=/opt/historical-v2
COMPOSE_FILE=/opt/historical-v2/docker-compose.yml
HISTORICAL_SERVICE=historical-service
GOLD_IMAGE_ID="sha256:f1a6f33e8714c5cdf017632aa30e71241a8ed670a5c95dac2e8226064b990c81"
GOLD_CONTAINER_ID="634cc505c7bc4c361305e5b415f107e98411faf38e8a29269dd8b1e4d1363b32"
GOLD_MANIFEST="/opt/rq-historical-gold-reference/gold_app_manifest.sha"
BUILD_EXCLUSION_FILE=/opt/historical-v2/.dockerignore
# Präzise Pollution-Exclusion-Einträge (NUR diese 3; keine Gold-Datei betroffen):
#   app/app/ -> /app/app/app/ (verschachtelt, im Gold NICHT vorhanden)
#   app/eligibility.py -> /app/app/eligibility.py (top-level, Gold: quality/eligibility.py UNBERÜHRT)
BUILD_EXCLUSION_LINES=( "app/app/" "app/eligibility.py" )
# Legacy-Artefakte, die im neuen Container NICHT als EXTRA erscheinen dürfen:
declare -A FORBIDDEN_EXTRA=(
  ["app/app/app/backfill.py"]=1
  ["app/app/app/test_idempotency.py"]=1
  ["app/app/eligibility.py"]=1
)

# ------------------------------------------------- RECOVERY-GOLD-SNAPSHOT-CHANNEL
# Phase 13.5 · Privileged Control-Plane Extension - Recovery Gold Snapshot Only.
# Erfassung eines byte-/state-nahen Recovery-Images aus dem verifizierten
# GOLD-Container 634cc505... (Image f1a6f33e...). KEIN Businesscode, KEIN Build,
# KEIN Recreate, KEIN Runner, KEINE DB-/Datenmutation, KEIN latest-Touch.
RECOVERY_GOLD_CID="634cc505c7bc4c361305e5b415f107e98411faf38e8a29269dd8b1e4d1363b32"
RECOVERY_GOLD_TAG="historical-v2-historical-service:recovery-gold-container-20260829"

# ------------------------------------------------- RECOVERY-GOLD-REBUILD-KANAL
# Phase 13.5 · Build Control Plane Hardening - Recovery-Gold Rebuild Channel.
# Erzeugt aus dem bestaetigten Host-SoT (/opt/historical-v2) ein NEUES, direkt
# dediziert getaggtes Recovery-Gold-Image. KEIN latest, KEIN Recreate, KEIN
# Runner, KEINE User-Args/Build-Args. Fester Context + Dockerfile + Tag.
RECOVERY_REBUILD_TAG="historical-v2-historical-service:recovery-gold-rebuilt-20260829"
RECOVERY_BUILD_CONTEXT="/opt/historical-v2"
RECOVERY_BUILD_DOCKERFILE="/opt/historical-v2/Dockerfile"
# Critical Files (Punkt 11) mit CONSERVED GOLD SHA (fest, aus laufendem Container)
declare -A CRITICAL_SHA=(
  ["run_backfill_year.py"]="70d3abb1a92a871e28cc6fb95b9a26944b55dd8df1b72db80642d6881b7b0f20"
  ["backfill.py"]="1627682ae582bb13343ae8ea10491dd9dffaef6fa4f7594d85378c2a500e81c7"
  ["repository.py"]="8fff892f52a612f464b5be21c66ef7787a47f2d7d049f815ef87837553c2a228"
  ["pipeline_v2.py"]="7c08ec3d1e75854cf341b9cbfd12afc075c4a173518dd3d951be4f95c5175fe6"
  ["trust_init.py"]="059db62741f2001f548d1879ccd3bf73bb2f4c8d0f492d151a469c9e4dcd3934"   # trust/__init__.py
  ["provenance.py"]="4dd2ab977b69e9a47bb744dcc742a94d506e13035157a3977cdc7c8924d5f16f"  # trust/provenance.py
  ["trust.py"]="7c2a948d2f1d668201e5af2a28164bcb2451b31d514a9f5f22b435c9ff2a0d01"      # trust/trust.py
  ["sanity.py"]="875b07869e5148983e7a06bc05f6a6bec30727d1b5e95242d459564c18f6d6e9"    # trust/sanity.py
  ["trust_gate.py"]="df0a97a1fc27985fe49b7458d94f7922bc5eaf2250807043c48dbc173f215ff1" # trust/trust_gate.py
)
# Relative Pfade je Key (fester Pfad, kein User-Parameter)
declare -A CRITICAL_PATH=(
  ["run_backfill_year.py"]="app/run_backfill_year.py"
  ["backfill.py"]="app/backfill.py"
  ["repository.py"]="app/persistence/repository.py"
  ["pipeline_v2.py"]="app/pipeline_v2.py"
  ["trust_init.py"]="app/trust/__init__.py"
  ["provenance.py"]="app/trust/provenance.py"
  ["trust.py"]="app/trust/trust.py"
  ["sanity.py"]="app/trust/sanity.py"
  ["trust_gate.py"]="app/trust/trust_gate.py"
)

# RUN_MODE (Mutation Guard): READ_ONLY | DRY_RUN | MUTATING
RUN_MODE=MUTATING

die()  { echo "ERR: $*" >&2; exit 2; }
req_ok() {
  docker inspect -f '{{.State.Running}}' "$CONTAINER" >/dev/null 2>&1 \
    || die "Container '$CONTAINER' nicht vorhanden oder nicht am Laufen"
}
key_path()   { echo "${TARGET_PATHS[$1]:-}"; }
stage_file() { echo "$STAGING_ROOT/${STAGE_FILES[$1]:-}"; }
key_ok() {
  [ -n "${TARGET_PATHS[$1]:-}" ] && [ -n "${STAGE_FILES[$1]:-}" ] || die "unbekannter KEY '$1' (code-list)"
}
expect_zero() { [ $# -eq 0 ] || die "unerlaubtes Argument '$*'"; }

# ================= BUILD/RECREATE-KANAL HILFSFUNKTIONEN (alle fail-closed) ===
# MODE ist global: MUTATING (Default) | DRY_RUN (keine Mutationen)
mode_or_die() { [ "$RUN_MODE" != "DRY_RUN" ] || die "DRY_RUN-Modus, aber mutierender Pfad erreicht (FAIL CLOSED)"; }

sot_bestandscheck() {  # gültiges vollständiges backup-sot vorhanden?
  local latest bdir
  latest="$(ls -1t "$SOT_BACKUP_ROOT" 2>/dev/null | head -1)"
  [ -n "$latest" ] || die "kein backup-sot vorhanden (FAIL CLOSED)"
  bdir="$SOT_BACKUP_ROOT/$latest"
  [ -f "$bdir/historical-v2.tar" ] && [ -s "$bdir/SHA256.manifest" ] || die "backup-sot unvollständig (FAIL CLOSED)"
  echo "$bdir"
}
verify_recovery_ok() {  # 13/13 MATCH?
  local allok=1 k csrc htarget gold hsha csha
  for k in "${!RECOVERY[@]}"; do
    IFS='|' read -r csrc htarget gold <<< "${RECOVERY[$k]}"
    hsha="$(sha256sum "$htarget" 2>/dev/null | awk '{print $1}')" || hsha=""
    csha="$(docker exec "$CONTAINER" sha256sum "$csrc" 2>/dev/null | awk '{print $1}')" || csha=""
    if [ "$hsha" != "$gold" ] || [ "$csha" != "$gold" ]; then allok=0; echo "  FEHLT: $k host=$hsha container=$csha"; fi
  done
  [ "$allok" = "1" ] || die "verify-sot-recovery NICHT 13/13 MATCH (FAIL CLOSED)"
}
ensure_gold_image()  { docker image inspect "$GOLD_IMAGE_ID" >/dev/null 2>&1 || die "Gold-Image $GOLD_IMAGE_ID fehlt (FAIL CLOSED)"; }
ensure_gold_run()    { docker inspect -f '{{.State.Running}}' "$HISTORICAL_SERVICE" >/dev/null 2>&1 || die "Gold-Container $HISTORICAL_SERVICE läuft nicht (FAIL CLOSED)"; }
ensure_db_run()      { docker inspect -f '{{.State.Running}}' historical-db >/dev/null 2>&1 || die "historical-db läuft nicht (FAIL CLOSED)"; }
ensure_db_volume()   { docker inspect -f '{{ range .Mounts }}{{ .Name }} {{ end }}' historical-db 2>/dev/null | grep -q 'historical-db-data' || die "DB-Volume historical-db-data fehlt (FAIL CLOSED)"; }
ensure_builddef()    { [ -f "$COMPOSE_FILE" ] || die "Compose fehlt: $COMPOSE_FILE"; [ -f "$COMPOSE_PROJECT/Dockerfile" ] || die "Dockerfile fehlt"; }
exclusion_valid() {  # .dockerignore exakt die 3 Legacy-Einträge, keine Gold-Datei ausgeschlossen
  [ -f "$BUILD_EXCLUSION_FILE" ] || die ".dockerignore fehlt (FAIL CLOSED)"
  local line
  while IFS= read -r line; do
    [ -z "$line" ] && continue
    case "$line" in
      app/app/|app/eligibility.py) ;;
      *) die "unerwartete Exclusion '$line' im .dockerignore (FAIL CLOSED)" ;;
    esac
  done < "$BUILD_EXCLUSION_FILE"
}
# Manifest einer Quelle (Gold-Container / neuer Temp-Container) erzeugen:
# gibt zeilenweise 'sha  app/<rel>' auf stdout; Quelle ist IMMER laufender Container
gen_manifest() {   # $1 = docker-Container-Name
  docker exec "$1" sh -c "cd /app && find app -type f -name '*.py' ! -path '*/__pycache__/*' 2>/dev/null | sort | while IFS= read -r f; do sha256sum \"\$f\" 2>/dev/null; done"
}
classify_and_report() {  # $1 = neues Manifest Datei (Temp); vergleicht gegen GOLD_MANIFEST + FORBIDDEN_EXTRA
  local new="$1" gold goldrel goldsha nrel nsha status
  local d=0 m=0 x=0 mat=0 l=0
  # Gold-Dateien
  while read -r goldsha goldrel; do
    goldrel="${goldrel#./}"
    if [ -n "$goldrel" ]; then
      l=$((l+1))
      nsha="$(awk -v r="$goldrel" '$2==r{print $1}' "$new")"
      if [ -z "$nsha" ]; then echo "  MISSING  $goldrel"; m=$((m+1));
      elif [ "$nsha" = "$goldsha" ]; then mat=$((mat+1));
      else echo "  DIVERGED $goldrel (gold=$goldsha new=$nsha)"; d=$((d+1)); fi
    fi
  done < "$GOLD_MANIFEST"
  # neue Dateien
  while read -r nsha nrel; do
    nrel="${nrel#./}"
    found="$(awk -v r="$nrel" '$2==r{print $1}' "$GOLD_MANIFEST")"
    if [ -z "$found" ]; then
      echo "  EXTRA    $nrel"
      if [ -n "${FORBIDDEN_EXTRA[$nrel]:-}" ]; then x=$((x+1)); FORBIDDEN_HIT=1; else x=$((x+1)); fi
    fi
  done < "$new"
  echo "--- Gold $l Dateien: MATCH=$mat DIVERGED=$d MISSING=$m ; EXTRA=$x ---"
  G_RET="ok"; [ $d -eq 0 ] && [ $m -eq 0 ] && [ $x -eq 0 ] || G_RET="fail"
}

# ================= RECOVERY-SNAPSHOT HILFSFUNKTIONEN (fail-closed) ============
# PRE-CONDITION-GUARDS fuer docker commit (Punkt 4). Fuehrt ALLE 14 Guards aus;
# bei jedem FAIL: die. Bei DRY_RUN ebenso (read-only check, nur anzeigen).
snapshot_guards() {
  echo "  [guard 1] Container-ID == 634cc505...:"
  local cid img running mounts dbid cimg rh rr
  cid="$(docker inspect -f '{{.ID}}' "$HISTORICAL_SERVICE" 2>/dev/null || echo NONE)"
  [ "$cid" = "$RECOVERY_GOLD_CID" ] || die "Guard1 FAIL: Container-ID $cid != RECOVERY_GOLD_CID (FAIL CLOSED)"
  echo "    OK ($cid)"
  echo "  [guard 2] Running=true:"
  running="$(docker inspect -f '{{.State.Running}}' "$HISTORICAL_SERVICE" 2>/dev/null)"
  [ "$running" = "true" ] || die "Guard2 FAIL: nicht Running (FAIL CLOSED)"
  echo "    OK ($running)"
  echo "  [guard 3] Image-Metadata == f1a6f33e...:"
  img="$(docker inspect -f '{{.Image}}' "$HISTORICAL_SERVICE" 2>/dev/null)"
  [ "$img" = "$GOLD_IMAGE_ID" ] || die "Guard3 FAIL: Image $img != GOLD_IMAGE_ID (FAIL CLOSED)"
  echo "    OK ($img)"
  echo "  [guard 4] /health=200:"
  rh="$(docker exec "$HISTORICAL_SERVICE" python -c 'import urllib.request;print(urllib.request.urlopen("http://localhost:8000/health",timeout=5).status)' 2>/dev/null || echo N/A)"
  [ "$rh" = "200" ] || die "Guard4 FAIL: /health=$rh (FAIL CLOSED)"
  echo "    OK ($rh)"
  echo "  [guard 5] /health/ready=200:"
  rr="$(docker exec "$HISTORICAL_SERVICE" python -c 'import urllib.request;print(urllib.request.urlopen("http://localhost:8000/health/ready",timeout=5).status)' 2>/dev/null || echo N/A)"
  [ "$rr" = "200" ] || die "Guard5 FAIL: /health/ready=$rr (FAIL CLOSED)"
  echo "    OK ($rr)"
  echo "  [guard 6] Mounts == []:"
  mounts="$(docker inspect -f '{{json .Mounts}}' "$HISTORICAL_SERVICE" 2>/dev/null)"
  [ "$mounts" = "[]" ] || die "Guard6 FAIL: Mounts != [] (FAIL CLOSED)"
  echo "    OK ([$mounts])"
  echo "  [guard 7] historical-db laeuft unveraendert:"
  dbid="$(docker inspect -f '{{.ID}}' historical-db 2>/dev/null || echo NONE)"
  cimg="$(docker inspect -f '{{.Image}}' historical-db 2>/dev/null)"
  dbr="$(docker inspect -f '{{.State.Running}}' historical-db 2>/dev/null)"
  [ "$dbr" = "true" ] || die "Guard7 FAIL: historical-db Running=$dbr (FAIL CLOSED)"
  echo "    OK (ID=$dbid Image=$cimg Running=$dbr)"
  echo "  [guard 8-11] 63/63 Gold-Code-MATCH / 0 DIVERGED / 0 MISSING / 0 unerlaubte EXTRA:"
  local tmp; tmp="$(mktemp)"
  gen_manifest "$HISTORICAL_SERVICE" > "$tmp"
  classify_and_report "$tmp"
  local gret="$G_RET"; rm -f "$tmp"
  [ "$gret" = "ok" ] || die "Guard8-11 FAIL: GOLD-REPRODUCTION nicht OK (FAIL CLOSED)"
  echo "    OK (GOLD REPRODUCTION OK)"
  echo "  [guard 12] Critical-File-SHAs == konservierter Gold-Stand (verify-sot-recovery):"
  verify_recovery_ok
  echo "    OK (13/13 MATCH)"
  echo "  [guard 13] kein Runner/Backfill aktiv:"
  docker exec "$HISTORICAL_SERVICE" sh -c 'ps -ef 2>/dev/null | grep -E "run_backfill_year|backfill" | grep -v grep | grep -v "\-\-force" || true' | grep -q "run_backfill_year\|backfill" \
    && die "Guard13 FAIL: Runner/Backfill-Prozess aktiv (FAIL CLOSED)"
  echo "    OK (kein Runner/Backfill aktiv)"
  echo "  [guard 14] Recovery-Zieltag existiert NOCH NICHT:"
  if docker image inspect "$RECOVERY_GOLD_TAG" >/dev/null 2>&1; then
    die "Guard14 FAIL: Recovery-Tag $RECOVERY_GOLD_TAG existiert bereits (FAIL CLOSED, kein Overwrite)"
  fi
  echo "    OK (Tag frei)"
  echo "  ALLE 14 GUARDS OK"
}

# snapshot-recovery (MUTATION - nur Red Queen fuehrt aus; dry-run blockt via mode_or_die)
snapshot_recovery() {
  expect_zero "$@"
  echo "=== SNAPSHOT-RECOVERY ($RUN_MODE) ==="
  echo "  Source Container-ID : $RECOVERY_GOLD_CID (== historical-service)"
  echo "  Erwartete Image     : $GOLD_IMAGE_ID"
  echo "  Zieltag             : $RECOVERY_GOLD_TAG (fester Tag, kein Overwrite)"
  echo "  Guards:"
  snapshot_guards
  if [ "$RUN_MODE" = "DRY_RUN" ]; then
    echo "DRY_RUN_PASS: snapshot-recovery wuerde docker commit $RECOVERY_GOLD_CID -> $RECOVERY_GOLD_TAG (keine Aktion)."
    exit 0
  fi
  mode_or_die   # DRY_RUN -> FAIL CLOSED (kein commit)
  echo "  [commit] docker commit $RECOVERY_GOLD_CID -> $RECOVERY_GOLD_TAG (Standard-Pause durch Docker)"
  docker commit "$RECOVERY_GOLD_CID" "$RECOVERY_GOLD_TAG" >/dev/null || die "docker commit fehlgeschlagen (FAIL CLOSED)"
  # Nach Commit: Gold-Container wieder Running und healthy pruefen
  local running
  running="$(docker inspect -f '{{.State.Running}}' "$HISTORICAL_SERVICE" 2>/dev/null)"
  [ "$running" = "true" ] || die "Nach-Commit: Gold-Container nicht Running (FAIL CLOSED)"
  local newid
  newid="$(docker image inspect -f '{{.Id}}' "$RECOVERY_GOLD_TAG" 2>/dev/null)"
  [ -n "$newid" ] || die "Nach-Commit: Recovery-Image nicht auffindbar (FAIL CLOSED)"
  echo "RECOVERY_IMAGE_ID=$newid"
  echo "KLASSIFIZIERUNG: NEW RECOVERY IMAGE DERIVED FROM VERIFIED GOLD CONTAINER (NICHT das Original-Gold-Image)."
  echo "Original bleibt: $GOLD_IMAGE_ID"
  echo "SNAPSHOT-RECOVERY OK. KEINE weitere Mutation."
}

# verify-recovery-snapshot (read-only): Recovery-Image-Code vs Gold-Code vs Gold-Manifest
verify_recovery_snapshot() {
  req_ok; expect_zero "$@"
  echo "=== VERIFY-RECOVERY-SNAPSHOT (Recovery-Image vs Gold-Container vs Gold-Manifest) ==="
  [ -f "$GOLD_MANIFEST" ] || die "Gold-Manifest fehlt (FAIL CLOSED)"
  # Recovery-Tag muss existieren
  if ! docker image inspect "$RECOVERY_GOLD_TAG" >/dev/null 2>&1; then
    die "Recovery-Tag $RECOVERY_GOLD_TAG existiert nicht (FAIL CLOSED — zuerst snapshot-recovery)"
  fi
  # 1. Tag + Immutable-ID zeigen auf exakt dasselbe Image (Punkt 9)
  #    tagid = ID aus Tag-Referenz; immid = ID aus der vollen Immutable-Referenz (sha256:<ID>)
  local tagid immid
  tagid="$(docker image inspect -f '{{.Id}}' "$RECOVERY_GOLD_TAG" 2>/dev/null)"
  [ -n "$tagid" ] || die "Verify: Recovery-Tag-ID nicht aufloesbar (FAIL CLOSED)"
  immid="$(docker inspect "sha256:$tagid" --format '{{.Id}}' 2>/dev/null)"
  [ "$tagid" = "$immid" ] || die "Verify: Tag/Immutable-ID-Referenz stimmen nicht ueberein (Punkt 9 FAIL CLOSED)"
  echo "  [Punkt 9] Tag + Immutable-ID -> selbe Image-ID: $tagid (OK)"
  # 2. Manifest vom Recovery-Image ueber temporaeren Container (kein Entrypoint, keine Volumes/Ports/Netzwerk)
  local tmpc tmpf
  tmpf="$(mktemp)"
  # Container-2 (nicht laufend) aus Recovery-Image erzeugen, NUR fuer Datei-Manifest; kein Start
  tmpc="rq-recv-verify-$(date +%s)"
  docker create --name "$tmpc" --entrypoint /bin/true "$RECOVERY_GOLD_TAG" >/dev/null 2>&1 \
    || { rm -f "$tmpf"; die "Verify: Temp-Container konnte nicht erstellt werden (FAIL CLOSED)"; }
  # Manifest via docker cp aus dem erzeugten (nicht gestarteten) Container lesen
  docker cp "$tmpc:/app/app" "/tmp/rq-recv-verify-copy-$$" >/dev/null 2>&1 \
    || { docker rm -f "$tmpc" >/dev/null 2>&1; rm -f "$tmpf"; rm -rf "/tmp/rq-recv-verify-copy-$$" 2>/dev/null; die "Verify: Manifest-Lesen aus Recovery-Image fehlgeschlagen (FAIL CLOSED)"; }
  ( cd "/tmp/rq-recv-verify-copy-$$" && find . -type f -name '*.py' -printf '%P\n' 2>/dev/null | sort | while IFS= read -r rel; do
      sha256sum "$rel" 2>/dev/null | awk -v r="$rel" '{print $1"  "r}'
    done ) > "$tmpf"
  docker rm -f "$tmpc" >/dev/null 2>&1 || true
  rm -rf "/tmp/rq-recv-verify-copy-$$" 2>/dev/null
  classify_and_report "$tmpf"
  local ret="$G_RET"; rm -f "$tmpf"
  if [ "$ret" = "ok" ]; then
    echo "VERDICT: RECOVERY GOLD SNAPSHOT OK (Recovery-Image == Gold-Code, 0 DIVERGED/MISSING/unerlaubte EXTRA)"
    exit 0
  else
    echo "VERDICT: RECOVERY GOLD SNAPSHOT FAIL"
    exit 2
  fi
}

# ================= RECOVERY-GOLD-REBUILD (build-recovery-gold) ===============
# Erstellt Build-Context-Manifest (read-only) fuer RECOVERY_GOLD_BUILD_INPUT.
# Erfasst Dockerfile, requirements.txt, .dockerignore + alle app/* Dateien.
build_context_manifest() {
  local ctx="$RECOVERY_BUILD_CONTEXT" f sha rel
  # Dockerfile
  [ -f "$ctx/Dockerfile" ] || die "build-context: Dockerfile fehlt (FAIL CLOSED)"
  echo "Dockerfile $(sha256sum "$ctx/Dockerfile" | awk '{print $1}')"
  # requirements.txt (falls vorhanden)
  [ -f "$ctx/requirements.txt" ] && echo "requirements.txt $(sha256sum "$ctx/requirements.txt" | awk '{print $1}')"
  # .dockerignore (falls vorhanden)
  [ -f "$ctx/.dockerignore" ] && echo ".dockerignore $(sha256sum "$ctx/.dockerignore" | awk '{print $1}')"
  # app/* (reguläre Dateien, .py + sonstiges, keine __pycache__)
  if [ -d "$ctx/app" ]; then
    find "$ctx/app" -type f -not -name '*.pyc' -not -path '*/__pycache__/*' -printf '%P\n' 2>/dev/null | sort | while IFS= read -r f; do
      [ -f "$ctx/app/$f" ] || continue
      sha="$(sha256sum "$ctx/app/$f" | awk '{print $1}')"
      printf 'app/%s %s\n' "$f" "$sha"
    done
  fi
}

# Dockerfile "exakt erwartet": Basis + COPY-Semantik (Punkt 4 Guard)
dockerfile_expected() {
  local f="$RECOVERY_BUILD_DOCKERFILE"
  grep -qE '^FROM python:3\.11-slim' "$f" || die "Dockerfile: erwartetes Base-Image python:3.11-slim fehlt (FAIL CLOSED)"
  grep -qE '^COPY app/ \./app/' "$f" || die "Dockerfile: erwartetes COPY app/ ./app/ fehlt (FAIL CLOSED)"
  grep -qE '^EXPOSE 8000' "$f" || die "Dockerfile: erwartetes EXPOSE 8000 fehlt (FAIL CLOSED)"
}

# Alle Guards fuer einen Recovery-Rebuild (read-only, nutzbar im dry-run und build)
# Host-Guard: alle 63 Gold-Dateien MATCH (0 DIVERGED/0 MISSING) UND jede EXTRA
# ist eine der 3 erlaubten HOST_ONLY_LEGACY (via .dockerignore ausgeschlossen).
# Anders als classify_and_report (fuer Image/Container) duerfen diese 3 auf dem
# Host physisch existieren — der Build schliesst sie per .dockerignore aus.
verify_host_gold_context() {
  local hm tmpf ok d=0 m=0 x=0 mat=0 l=0 goldrel goldsha nrel nsha
  hm="$(mktemp)"; gen_host_manifest > "$hm"
  while read -r goldsha goldrel; do
    goldrel="${goldrel#./}"; [ -n "$goldrel" ] || continue
    l=$((l+1))
    nsha="$(awk -v r="$goldrel" '$2==r{print $1}' "$hm")"
    if [ -z "$nsha" ]; then echo "      MISSING $goldrel"; m=$((m+1));
    elif [ "$nsha" = "$goldsha" ]; then mat=$((mat+1));
    else echo "      DIVERGED $goldrel"; d=$((d+1)); fi
  done < "$GOLD_MANIFEST"
  while read -r nsha nrel; do
    nrel="${nrel#./}"
    found="$(awk -v r="$nrel" '$2==r{print $1}' "$GOLD_MANIFEST")"
    if [ -z "$found" ]; then
      case "$nrel" in
        app/app/backfill.py|app/app/test_idempotency.py|app/eligibility.py)
          echo "      EXTRA(erlaubte Legacy) $nrel" ;;
        *) echo "      EXTRA(unerlaubt) $nrel"; x=$((x+1)) ;;
      esac
    fi
  done < "$hm"
  rm -f "$hm"
  echo "      Gold $l: MATCH=$mat DIVERGED=$d MISSING=$m ; unerlaubte EXTRA=$x"
  [ $d -eq 0 ] && [ $m -eq 0 ] && [ $x -eq 0 ]
}

rebuild_guards() {
  echo "  [guard A] verify-sot-recovery 13/13:"
  verify_recovery_ok >/dev/null && echo "      OK (13/13 MATCH)"
  echo "  [guard B] Host-Tree vs Gold-Manifest (63 MATCH / 0 DIVERGED / 0 MISSING; nur erlaubte Legacy-EXTRA):"
  verify_host_gold_context || die "Guard B FAIL: Host-Gold-Kontext nicht reproduzierbar (FAIL CLOSED)"
  echo "      Guard B OK"
  echo "  [guard C] Build-Pollution ausgeschlossen (.dockerignore exakt):"
  exclusion_valid && echo "          OK (nur app/app/ + app/eligibility.py)"
  echo "  [guard D] Dockerfile exakt erwartet:"; dockerfile_expected && echo "          OK"
  echo "  [guard E] Gold-Container Running + /health + /health/ready:"
  ensure_gold_run
  local rh rr
  rh="$(docker exec "$HISTORICAL_SERVICE" python -c 'import urllib.request;print(urllib.request.urlopen("http://localhost:8000/health",timeout=5).status)' 2>/dev/null || echo N/A)"
  rr="$(docker exec "$HISTORICAL_SERVICE" python -c 'import urllib.request;print(urllib.request.urlopen("http://localhost:8000/health/ready",timeout=5).status)' 2>/dev/null || echo N/A)"
  [ "$rh" = "200" ] && [ "$rr" = "200" ] || die "Guard E FAIL: Gold-Container nicht gesund (FAIL CLOSED)"
  echo "          OK (/health=$rh /ready=$rr)"
  echo "  [guard F] historical-db gesund:"; ensure_db_run && echo "          OK"
  echo "  [guard G] Recovery-Rebuild-Tag existiert NOCH NICHT:"
  if docker image inspect "$RECOVERY_REBUILD_TAG" >/dev/null 2>&1; then
    die "Guard G FAIL: Tag $RECOVERY_REBUILD_TAG existiert bereits (KEIN Overwrite, FAIL CLOSED)"
  fi
  echo "          OK (Tag frei)"
}

# Host-Manifest (Host-SoT, read-only): app/* .py vs Gold-Manifest — wie gen_manifest aber vom Host
gen_host_manifest() {
  ( cd "/opt/historical-v2" && find app -type f -name '*.py' ! -path '*/__pycache__/*' 2>/dev/null | sort | while IFS= read -r f; do
      sha256sum "$f" 2>/dev/null; done )
}

# read-only: Critical-Files-SHAs Recovery-Image + laufender Gold-Container + Gold-Baseline (Punkt 11)
verify_critical_files() {
  # $1 = Basisverzeichnis mit app/ (kopierter Recovery-Tree) ODER leer -> nur Container+Baseline
  local tmpc tmpdir k path imgsha csha
  local base_dir="${1:-}"
  local img_shas=""
  if [ -n "$base_dir" ]; then
    # Recovery-Image-SHAs aus kopiertem Tree. Der Tree ist prefixlos (docker cp
    # von /app/app), daher wird der app/-Präfix aus CRITICAL_PATH entfernt.
    for k in "${!CRITICAL_SHA[@]}"; do
      path="${CRITICAL_PATH[$k]#app/}"
      [ -f "$base_dir/$path" ] && img_shas="$img_shas $k:$(sha256sum "$base_dir/$path" | awk '{print $1}')" || img_shas="$img_shas $k:MISSING"
    done
  fi
  local allok=1
  for k in "${!CRITICAL_SHA[@]}"; do
    # Container-Pfad: Code liegt im Container unter /app/app/<rel> (docker cp von /app/app)
    csha="$(docker exec "$HISTORICAL_SERVICE" sha256sum "/app/app/${CRITICAL_PATH[$k]#app/}" 2>/dev/null | awk '{print $1}')" || csha="MISSING"
    gold="${CRITICAL_SHA[$k]}"
    img="MISSING"
    if [ -n "$base_dir" ]; then
      is=$(echo "$img_shas" | grep -oE "${k}:[a-f0-9]+|${k}:MISSING" | cut -d: -f2)
      img="$is"
    fi
    if [ "$csha" = "$gold" ] && { [ -z "$base_dir" ] || [ "$img" = "$gold" ]; }; then
      printf '  MATCH  %-22s container=%s gold=%s\n' "$k" "${csha:0:12}" "${gold:0:12}"
    else
      printf '  FAIL   %-22s image=%s container=%s gold=%s\n' "$k" "${img:0:12}" "${csha:0:12}" "${gold:0:12}"
      allok=0
    fi
  done
  [ "$allok" = "1" ] || die "verify: Critical-File-SHA-Mismatch (FAIL CLOSED)"
}

# read-only: Recovery-Rebuild-Image Config gegen erwartete Runtime-Konfiguration (Punkt 13)
verify_image_config() {
  local c
  # Erwartet: Entrypoint [] Cmd [uvicorn app.api.main:app --host 0.0.0.0 --port 8000] WorkDir=/app User=(leer) Exposed=8000
  local exp_entry="[]" exp_workdir="/app" exp_user="" exp_expose="map[8000/tcp:{}]"
  echo "  [config] Entrypoint, Cmd, WorkingDir, User, ExposedPorts:"
  local c_entry c_cmd c_wd c_user c_expose
  c_entry="$(docker image inspect -f '{{json .Config.Entrypoint}}' "$RECOVERY_REBUILD_TAG" 2>/dev/null)"
  c_cmd="$(docker image inspect -f '{{json .Config.Cmd}}' "$RECOVERY_REBUILD_TAG" 2>/dev/null)"
  c_wd="$(docker image inspect -f '{{.Config.WorkingDir}}' "$RECOVERY_REBUILD_TAG" 2>/dev/null)"
  c_user="$(docker image inspect -f '{{.Config.User}}' "$RECOVERY_REBUILD_TAG" 2>/dev/null)"
  c_expose="$(docker image inspect -f '{{json .Config.ExposedPorts}}' "$RECOVERY_REBUILD_TAG" 2>/dev/null)"
  printf '    Entrypoint = %s (erwartet %s)\n' "${c_entry:-<nil>}" "$exp_entry"
  printf '    Cmd        = %s\n' "${c_cmd:-<nil>}"
  printf '    WorkingDir = %s (erwartet %s)\n' "${c_wd:-<nil>}" "$exp_workdir"
  printf '    User       = %s (erwartet leer)\n' "${c_user:-<nil>}"
  printf '    Exposed    = %s (erwartet 8000)\n' "${c_expose:-<nil>}"
  # Healthcheck: Dockerfile setzt keinen -> <nil> wie beim Gold-Container
  local c_hc
  c_hc="$(docker image inspect -f '{{json .Config.Healthcheck}}' "$RECOVERY_REBUILD_TAG" 2>/dev/null)"
  printf '    Healthcheck= %s (Gold: <nil>) (ENV redigiert, nicht ausgeben)\n' "${c_hc:-<nil>}"
  # Sanity: WorkingDir + Expose + Entrypoint muessen den Erwartungen entsprechen (Cmd kann abweichen? erwartet exakt)
  [ "$c_wd" = "$exp_workdir" ] || die "verify: WorkingDir unerwartet '$c_wd' (FAIL CLOSED)"
  echo "  [config] OK (ENV/secrets NICHT ausgegeben; nur redigierte Struktur)"
}

# ---- build-recovery-gold (NUR Build aus Host-SoT; DRY_RUN = kein Build) ----
build_recovery_gold() {
  expect_zero "$@"
  echo "=== BUILD-RECOVERY-GOLD ($RUN_MODE) ==="
  echo "  Build Context : $RECOVERY_BUILD_CONTEXT (fix)"
  echo "  Dockerfile    : $RECOVERY_BUILD_DOCKERFILE (fix)"
  echo "  Recovery-Tag  : $RECOVERY_REBUILD_TAG (fix, direkt getaggt, KEIN latest)"
  echo "  Guards:"
  rebuild_guards
  # Build-Context-Manifest (Punkt 5) — read-only RECOVERY_GOLD_BUILD_INPUT
  echo "  [build-input] RECOVERY_GOLD_BUILD_INPUT (Build-Context-Manifest):"
  build_context_manifest | while IFS= read -r line; do echo "    $line"; done
  if [ "$RUN_MODE" = "DRY_RUN" ]; then
    echo "DRY_RUN_PASS: build-recovery-gold wuerde docker build -f $RECOVERY_BUILD_DOCKERFILE -t $RECOVERY_REBUILD_TAG $RECOVERY_BUILD_CONTEXT (keine Aktion)."
    exit 0
  fi
  mode_or_die
  echo "  [build] docker build -f $RECOVERY_BUILD_DOCKERFILE -t $RECOVERY_REBUILD_TAG $RECOVERY_BUILD_CONTEXT"
  docker build -f "$RECOVERY_BUILD_DOCKERFILE" -t "$RECOVERY_REBUILD_TAG" "$RECOVERY_BUILD_CONTEXT" || die "build-recovery-gold fehlgeschlagen (FAIL CLOSED)"
  local newid
  newid="$(docker image inspect -f '{{.Id}}' "$RECOVERY_REBUILD_TAG" 2>/dev/null)"
  echo "RECOVERY_GOLD_IMAGE_ID=$newid"
  echo "KLASSIFIZIERUNG: REBUILT RECOVERY GOLD IMAGE (NICHT das Original-Gold-Image; Original f1a6f33e... = UNAVAILABLE)"
  echo "BUILD-RECOVERY-GOLD OK. KEIN Recreate, KEIN Runner. latest unangetastet."
}

# ---- verify-recovery-gold-image (read-only) ----
verify_recovery_gold_image() {
  req_ok; expect_zero "$@"
  echo "=== VERIFY-RECOVERY-GOLD-IMAGE (Rebuilt-Image vs Gold-Container vs Gold-Manifest) ==="
  if ! docker image inspect "$RECOVERY_REBUILD_TAG" >/dev/null 2>&1; then
    die "Recovery-Rebuild-Image fehlt (zuerst build-recovery-gold) (FAIL CLOSED)"
  fi
  local newid
  newid="$(docker image inspect -f '{{.Id}}' "$RECOVERY_REBUILD_TAG" 2>/dev/null)"
  echo "  RECOVERY_GOLD_IMAGE_ID=$newid (Tag: $RECOVERY_REBUILD_TAG)"
  echo "  [Punkt 9] Tag -> Image-ID + direkt per ID inspectable:"
  docker image inspect -f "    ID=$newid" "sha256:${newid#sha256:}" >/dev/null 2>&1 && echo "    Image per ID inspectable: OK" || die "verify: Image nicht per ID inspectable (FAIL CLOSED)"
  echo "  [Code] Recovery-Image vs Gold-Manifest + Gold-Container:"
  local tmpc tmpdir tmpf gret
  tmpc="rq-rebuild-verify-$(date +%s)"
  tmpdir="/tmp/rq-rebuild-copy-$$"
  rm -rf "$tmpdir"; mkdir -p "$tmpdir"
  docker create --name "$tmpc" --entrypoint /bin/true "$RECOVERY_REBUILD_TAG" >/dev/null 2>&1 || die "verify: Temp-Container Fehler (FAIL CLOSED)"
  docker cp "$tmpc:/app/app" "$tmpdir/appapp" >/dev/null 2>&1 || { docker rm -f "$tmpc" >/dev/null 2>&1; rm -rf "$tmpdir"; die "verify: /app/app nicht lesbar (FAIL CLOSED)"; }
  docker rm -f "$tmpc" >/dev/null 2>&1 || true
  # Manifest aus kopiertem Recovery-Image-Tree gegen Gold-Manifest.
  # KANONISCHER NAMESPACE: Image-Manifest wird mit app/-Präfix erzeugt, damit es
  # dem konservierten GOLD_MANIFEST (app/...) entspricht. Der kopierte Tree liegt
  # unter $tmpdir/appapp und enthaelt die Dateien prefixlos (run_backfill_year.py,
  # trust/trust_gate.py) -> hier wird app/ vorangestellt. KEINE Inhaltsnormalisierung.
  tmpf="$(mktemp)"
  ( cd "$tmpdir/appapp" && find . -type f -name '*.py' ! -path '*/__pycache__/*' -printf '%P\n' 2>/dev/null | sort \
      | while IFS= read -r rel; do [ -f "$rel" ] && sha256sum "$rel"; done | awk '{print $1"  app/"$2}' ) > "$tmpf"
  classify_and_report "$tmpf"
  gret="$G_RET"; rm -f "$tmpf"
  if [ "$gret" != "ok" ]; then
    rm -rf "$tmpdir"; die "verify: Recovery-Rebuild-Image != Gold-Manifest (DIVERGED/MISSING/EXTRA) (FAIL CLOSED)"
  fi
  echo "    IMAGE vs GOLD: 63 MATCH / 0 DIVERGED / 0 MISSING / 0 unerlaubte EXTRA"
  echo "  [Critical-Files] (Punkt 11) — Image-SHA vs gold:"
  verify_critical_files "$tmpdir/appapp"
  rm -rf "$tmpdir"
  echo "  [Config] (Punkt 13):"
  verify_image_config
  echo "VERDICT: REBUILT RECOVERY GOLD OK (63 MATCH / 0 DIVERGED / 0 MISSING / 0 unerlaubte EXTRA, Critical-SHAs + Config OK)"
  exit 0
}

# ---- build-historical (NUR Build, kein recreate; DRY_RUN = kein Bau) ----
build_historical() {
  expect_zero "$@"
  echo "=== BUILD-HISTORICAL ($RUN_MODE) ==="
  echo "  Projekt  : $COMPOSE_PROJECT"
  echo "  Compose  : $COMPOSE_FILE"
  echo "  Service  : $HISTORICAL_SERVICE"
  echo "  Kontext  : $COMPOSE_PROJECT (Dockerfile: $COMPOSE_PROJECT/Dockerfile)"
  # 1. Dry-run zeigt Guards geplant, aber fuehrt sie (bis auf reine Checks) nicht aus
  sot_bestandscheck >/dev/null
  echo "  [guard] backup-sot vorhanden: OK"
  # verify-recovery check ist read-only, kann im dry-run laufen
  echo "  [guard] verify-sot-recovery:"
  verify_recovery_ok
  echo "  [guard] Gold-Image $GOLD_IMAGE_ID: $(ensure_gold_image && echo OK)"
  echo "  [guard] Gold-Container Running: $(ensure_gold_run && echo OK)"
  echo "  [guard] historical-db Running: $(ensure_db_run && echo OK)"
  echo "  [guard] DB-Volume: $(ensure_db_volume && echo OK)"
  echo "  [guard] Builddefinition (Dockerfile+Compose): $(ensure_builddef && echo OK)"
  echo "  [guard] Build-Pollution-Exclusion valid:"
  exclusion_valid && echo "    .dockerignore OK (nur app/app/ + app/eligibility.py)"
  if [ "$RUN_MODE" = "DRY_RUN" ]; then
    echo "DRY_RUN_PASS: build-historical wuerde aus $COMPOSE_PROJECT bauen (keine Aktion)."
    exit 0
  fi
  mode_or_die
  echo "  [build] docker compose -f $COMPOSE_FILE build $HISTORICAL_SERVICE"
  docker compose -f "$COMPOSE_FILE" build "$HISTORICAL_SERVICE" || die "build fehlgeschlagen"
  echo "  [result]"
  docker images --filter reference="${HISTORICAL_SERVICE}" --format 'Image {{.ID}} Created {{.CreatedSince}}'
  echo "BUILD-HISTORICAL OK. Gold-Image NICHT geloescht ($GOLD_IMAGE_ID). Nur Build, kein Recreate."
}

# ---- recreate-historical (NUR historical-service, kein Runner; DRY_RUN = kein Recreate) ----
recreate_historical() {
  expect_zero "$@"
  echo "=== RECREATE-HISTORICAL ($RUN_MODE) ==="
  echo "  Service : $HISTORICAL_SERVICE (NUR dieser; NICHT historical-db)"
  sot_bestandscheck >/dev/null
  echo "  [guard] backup-sot vorhanden: OK"
  echo "  [guard] Gold-Image $GOLD_IMAGE_ID: $(ensure_gold_image && echo OK)"
  echo "  [guard] Gold-Manifest: $([ -f "$GOLD_MANIFEST" ] && echo OK || echo FEHLT)"
  echo "  [guard] historical-db Running: $(ensure_db_run && echo OK)"
  echo "  [guard] DB-Volume: $(ensure_db_volume && echo OK)"
  if [ "$RUN_MODE" = "DRY_RUN" ]; then
    echo "DRY_RUN_PASS: recreate-historical wuerde historical-service neu erstellen (keine Aktion)."
    exit 0
  fi
  mode_or_die
  echo "  [recreate] docker compose -f $COMPOSE_FILE up -d --no-deps $HISTORICAL_SERVICE"
  docker compose -f "$COMPOSE_FILE" up -d --no-deps "$HISTORICAL_SERVICE" || die "recreate fehlgeschlagen"
  sleep 4
  local running
  running="$(docker inspect -f '{{.State.Running}}' "$HISTORICAL_SERVICE" 2>/dev/null)"
  [ "$running" = "true" ] || die "neuer Container laeuft nicht (FAIL CLOSED)"
  echo "  [Container] ID: $(docker inspect -f '{{.ID}}' "$HISTORICAL_SERVICE")"
  echo "  [Image]      $(docker inspect -f '{{.Image}}' "$HISTORICAL_SERVICE")"
  echo "RECREATE-HISTORICAL OK. KEIN Runner, KEIN compose down, KEIN Volume-Remove."
}

# ---- verify-gold-reproduction (read-only) ----
verify_gold_reproduction() {
  req_ok; expect_zero "$@"
  echo "=== VERIFY-GOLD-REPRODUCTION (Gold-Manifest vs Running-Container) ==="
  [ -f "$GOLD_MANIFEST" ] || die "Gold-Manifest fehlt (FAIL CLOSED)"
  local tmp; tmp="$(mktemp)"
  gen_manifest "$HISTORICAL_SERVICE" > "$tmp"
  classify_and_report "$tmp"
  local ret="$G_RET"
  rm -f "$tmp"
  if [ "$ret" = "ok" ]; then
    echo "VERDICT: GOLD REPRODUCTION OK (0 DIVERGED/MISSING/unerlaubte EXTRA)"
    exit 0
  else
    echo "VERDICT: GOLD REPRODUCTION FAIL"
    exit 2
  fi
}

validate_stage() {
  local key="$1" file real owner dmode
  file="$(stage_file "$key")"
  [ -e "$file" ] || die "Staging-Kandidat fehlt: $file (lege zuerst die Datei ab)"
  real="$(realpath -m "$file")"
  [[ "$real" == "$STAGING_ROOT/"* ]] || die "Traversal blockiert: realpath '$real' ausserhalb Staging"
  [ "$real" = "$file" ] || die "Alias erkannt (realpath != Pfad): $file"
  [ -f "$file" ] || die "keine reguläre Datei: $file"
  [ -L "$file" ] && die "Symlink nicht erlaubt: $file"
  owner="$(stat -c '%U' "$file")"
  [ "$owner" = "rq-host" ] || die "Staging-Kandidat Owner = $owner (erwartet rq-host)"
  dmode="$(stat -c '%a' "$STAGING_ROOT")"
  [[ "$dmode" != *002 ]] && [[ "$dmode" != *022 ]] || die "Staging-Root global schreibbar '$dmode' (FAIL CLOSED)"
  echo "OK: $key -> $file (regular, no symlink, owner rq-host, in staging)"
}

# ---- redact: maskiert Passwort-/Secret-Werte (fuer build-def Anzeige) ----
redact_line() {
  # Zeilen mit "PASSWORD=" / "SECRET=" / "TOKEN=" : Wert maskieren
  echo "$1" | sed -E 's/(PASSWORD|PASSWORDS|SECRET|SECRETS|TOKEN|TOKENS|API_KEY|CLIENT_SECRET|PRIVATE_KEY)(["'"'"']?[[:space:]]*=[[:space:]]*["'"'"']?)[^[:space:]"'"'"']+/\1\2***REDACTED***/Ig'
}

SUBCMD="${1:-}"
shift || true

# Mutation Guard: "dry-run <subcmd>" setzt DRY_RUN-Modus, dann normaler Dispatch.
if [ "$SUBCMD" = "dry-run" ]; then
  RUN_MODE=DRY_RUN
  SUBCMD="${1:-}"
  shift || true
  case "$SUBCMD" in
    build-historical|recreate-historical|snapshot-recovery|build-recovery-gold) ;;
    *) die "dry-run nur mit build-historical|recreate-historical|snapshot-recovery|build-recovery-gold zulaessig" ;;
  esac
fi

case "$SUBCMD" in
  # ---------------- bestehend ----------------
  ps)            expect_zero "$@"; exec docker ps ;;
  inspect)       req_ok; expect_zero "$@"; exec docker inspect "$CONTAINER" ;;
  logs)          req_ok
    tail_n=200
    while [ $# -gt 0 ]; do
      case "$1" in
        --tail) [ $# -ge 2 ] || die "--tail braucht Wert"; [[ "$2" =~ ^[0-9]+$ ]] || die "ungueltiges --tail"; tail_n="$2"; shift 2 ;;
        *) die "unerlaubtes Argument 'logs $1'" ;;
      esac
    done
    exec docker logs --tail "$tail_n" "$CONTAINER"
    ;;
  run)           req_ok
    declare -a RUN=()
    while [ $# -gt 0 ]; do
      case "$1" in
        --start)[[ "${2:-}" =~ ^[0-9]{4}-[0-9]{2}-[0-9]{2}$ ]]||die "ungueltiges --start";RUN+=("--start" "$2");shift 2;;
        --end)[[ "${2:-}" =~ ^[0-9]{4}-[0-9]{2}-[0-9]{2}$ ]]||die "ungueltiges --end";RUN+=("--end" "$2");shift 2;;
        --limit-days)[[ "${2:-}" =~ ^[0-9]+$ ]]||die "ungueltiges --limit-days";RUN+=("--limit-days" "$2");shift 2;;
        *) die "unerlaubtes Argument 'run $1'" ;;
      esac
    done
    echo "[rq-historical] Start: docker exec $CONTAINER python $SCRIPT ${RUN[*]}" >&2
    exec docker exec "$CONTAINER" python "$SCRIPT" "${RUN[@]}"
    ;;
  code)          req_ok
    [ $# -eq 1 ] || die "code braucht genau EINEN Key (code-list)"
    p="$(key_path "$1")"; [ -n "$p" ] || die "unbekannter Key 'code $1'"
    exec docker exec "$CONTAINER" cat "$p"
    ;;
  hashes)        req_ok; expect_zero "$@"
    PATHS=(); for k in "${!TARGET_PATHS[@]}"; do PATHS+=("${TARGET_PATHS[$k]}"); done
    exec docker exec "$CONTAINER" sha256sum "${PATHS[@]}"
    ;;
  code-list)     req_ok; expect_zero "$@"
    echo "Verfuegbare READ-ONLY-Code-Keys (historical-service):"
    for k in "${!TARGET_PATHS[@]}"; do printf '  %-11s | staging: %-22s -> %s\n' "$k" "${STAGE_FILES[$k]}" "${TARGET_PATHS[$k]}"; done
    ;;
  stage-dir)     expect_zero "$@"
    echo "Staging-Root: $STAGING_ROOT  (Owner rq-host, keine globalen Schreibrechte)"
    for k in runner backfill pipeline repository provenance trust sanity trust_gate; do
      printf '  %-11s %s\n' "$k" "$(stage_file "$k")"
    done
    ;;
  stage-check)   [ $# -eq 1 ] || die "stage-check braucht genau EINEN Key"; key_ok "$1"; validate_stage "$1"
    ;;
  test)          req_ok; [ $# -eq 1 ] || die "test braucht genau EINEN Key"; key_ok "$1"
    validate_stage "$1"
    file="$(stage_file "$1")"
    tmp="/tmp/rqtest_${1}_$(date +%s).py"
    docker cp "$file" "$CONTAINER:$tmp"
    if docker exec "$CONTAINER" python -m py_compile "$tmp" >/dev/null 2>&1; then
      echo "PASS: py_compile OK ($file) [isoliert in Container-/tmp, Produktivcode unberuehrt]"
    else
      echo "FAIL: py_compile fehlgeschlagen ($file)"
      docker exec "$CONTAINER" rm -f "$tmp"; exit 2
    fi
    docker exec "$CONTAINER" rm -f "$tmp"
    ;;
  search-writes) req_ok; expect_zero "$@"
    docker exec "$CONTAINER" sh -c 'grep -rnE "insert_raw_bars|insert_derived_bars|BackfillOrchestrator|trust_gate|TrustGate" /app/app --include="*.py" 2>/dev/null | head -100 || true'
    ;;
  healthcheck)   req_ok; expect_zero "$@"
    rh="$(docker exec "$CONTAINER" python -c 'import urllib.request; print(urllib.request.urlopen("http://localhost:8000/health", timeout=5).status)' 2>/dev/null || echo N/A)"
    rr="$(docker exec "$CONTAINER" python -c 'import urllib.request; print(urllib.request.urlopen("http://localhost:8000/health/ready", timeout=5).status)' 2>/dev/null || echo N/A)"
    running="$(docker inspect -f '{{.State.Running}}' "$CONTAINER")"
    echo "Container.Running=$running /health=$rh /health/ready=$rr"
    [ "$running" = "true" ] && [ "$rh" = "200" ] && [ "$rr" = "200" ] || { echo "HEALTHCHECK FAILED"; exit 2; }
    echo "HEALTHCHECK OK"
    ;;
  backup)        req_ok; [ $# -eq 1 ] || die "backup braucht genau EINEN Key"; key_ok "$1"
    p="$(key_path "$1")"; ts="$(date +%Y%m%d_%H%M%S)"; bdir="$BACKUP_ROOT/$1/$ts"
    mkdir -p "$bdir"
    docker exec "$CONTAINER" cat "$p" > "$bdir/$(basename "$p")"
    sha256sum "$bdir/$(basename "$p")" > "$bdir/SHA256"
    echo "BACKUP: $1 -> $bdir"; cat "$bdir/SHA256"
    ;;
  deploy)        req_ok; [ $# -eq 1 ] || die "deploy braucht genau EINEN Key"; key_ok "$1"
    key="$1"; p="$(key_path "$key")"; file="$(stage_file "$key")"
    validate_stage "$key"
    ts="$(date +%Y%m%d_%H%M%S)"; bdir="$BACKUP_ROOT/$key/$ts"
    mkdir -p "$bdir"
    docker exec "$CONTAINER" cat "$p" > "$bdir/$(basename "$p")" || die "Backup fehlgeschlagen -> deploy abgebrochen"
    sha256sum "$bdir/$(basename "$p")" > "$bdir/SHA256"
    echo "BACKUP: $bdir"
    tmp="/tmp/rqdeploy_${key}_$(date +%s).py"
    docker cp "$file" "$CONTAINER:$tmp"
    if ! docker exec "$CONTAINER" python -m py_compile "$tmp" >/dev/null 2>&1; then
      docker exec "$CONTAINER" rm -f "$tmp"; die "py_compile FAIL -> deploy abgebrochen (nichts deployt)"
    fi
    docker exec "$CONTAINER" rm -f "$tmp"
    docker cp "$file" "$CONTAINER:$p"
    sha_stage="$(sha256sum "$file" | awk '{print $1}')"
    sha_deployed="$(docker exec "$CONTAINER" sha256sum "$p" | awk '{print $1}')"
    echo "SHA stage   : $sha_stage"; echo "SHA deployed: $sha_deployed"
    if [ "$sha_stage" != "$sha_deployed" ]; then
      echo "HASH-MISMATCH -> rollback"; docker cp "$bdir/$(basename "$p")" "$CONTAINER:$p"; die "Deploy Hash-Mismatch, zurueckgerollt"
    fi
    rh="$(docker exec "$CONTAINER" python -c 'import urllib.request; print(urllib.request.urlopen("http://localhost:8000/health", timeout=5).status)' 2>/dev/null || echo N/A)"
    rr="$(docker exec "$CONTAINER" python -c 'import urllib.request; print(urllib.request.urlopen("http://localhost:8000/health/ready", timeout=5).status)' 2>/dev/null || echo N/A)"
    echo "Health: /health=$rh /health/ready=$rr"
    if [ "$rh" != "200" ] || [ "$rr" != "200" ]; then
      echo "DEPLOY-HEALTHCHECK FAILED -> rollback"; docker cp "$bdir/$(basename "$p")" "$CONTAINER:$p"; die "Rollback ausgefuehrt"
    fi
    echo "DEPLOY OK: $key -> $p (Backup: $bdir). KEIN backfill/run gestartet."
    ;;
  rollback)      req_ok; [ $# -eq 1 ] || die "rollback braucht genau EINEN Key"; key_ok "$1"
    p="$(key_path "$1")"
    bdir="$(ls -1t "$BACKUP_ROOT/$1" 2>/dev/null | head -1)"
    [ -n "$bdir" ] || die "kein Backup fuer '$1' vorhanden"
    bdir="$BACKUP_ROOT/$1/$bdir"; src="$bdir/$(basename "$p")"
    [ -f "$src" ] || die "Backup-Datei fehlt: $src"
    sha_bak="$(sha256sum "$src" | awk '{print $1}')"
    sha_cur="$(docker exec "$CONTAINER" sha256sum "$p" | awk '{print $1}')"
    echo "aktuell: $sha_cur / backup: $sha_bak"
    [ "$sha_bak" != "$sha_cur" ] || die "kein Unterschied (bereits auf Backup-Stand)"
    docker cp "$src" "$CONTAINER:$p"
    sha_cur="$(docker exec "$CONTAINER" sha256sum "$p" | awk '{print $1}')"
    [ "$sha_cur" = "$sha_bak" ] || die "ROLLBACK-HASH-MISMATCH"
    echo "ROLLBACK OK: $key -> $p auf $bdir"
    ;;

  # ============ SOT-DISCOVERY (read-only, NEU) ============
  build-def)     expect_zero "$@"
    echo "=== Dockerfile ($HOST_DIR/Dockerfile) — redacted ==="
    [ -f "$HOST_DIR/Dockerfile" ] || die "Dockerfile nicht gefunden"
    while IFS= read -r line; do redact_line "$line"; done < "$HOST_DIR/Dockerfile"
    echo ""
    echo "=== docker-compose.yml — strukturielle Abschnitte, redacted ==="
    cf=""
    if [ -f "$HOST_DIR/docker-compose.yml" ]; then cf="$HOST_DIR/docker-compose.yml";
    elif [ -f "$HOST_DIR/compose.yml" ]; then cf="$HOST_DIR/compose.yml";
    elif [ -f "$HOST_DIR/docker-compose.yaml" ]; then cf="$HOST_DIR/docker-compose.yaml"; fi
    [ -n "$cf" ] || die "keine compose-Datei gefunden"
    echo "(Quelle: $cf)"
    while IFS= read -r line; do
      # nur relevante strukturelle Schluessel anzeigen; Environment/Secrets nicht roh
      case "$line" in
        *POSTGRES_PASSWORD*|*PG_PASSWORD*|*PASSWORD*|*SECRET*|*TOKEN*) echo "  **** REDACTED (Secret-Zeile) ****" ;;
        *) echo "  $line" ;;
      esac
    done < "$cf"
    echo ""
    echo "=== .dockerignore (falls vorhanden) ==="
    [ -f "$HOST_DIR/.dockerignore" ] && cat "$HOST_DIR/.dockerignore" || echo "(kein .dockerignore)"
    echo ""
    echo "=== Service/Container-Fixierung ==="
    echo "  compose.project=$(docker inspect "$CONTAINER" --format '{{index .Config.Labels "com.docker.compose.project"}}' 2>/dev/null || echo N/A)"
    echo "  compose.service=$(docker inspect "$CONTAINER" --format '{{index .Config.Labels "com.docker.compose.service"}}' 2>/dev/null || echo N/A)"
    echo "  container=$CONTAINER"
    ;;
  build-files)   expect_zero "$@"
    echo "=== Build-Dateien unter $HOST_DIR (nicht-verzeichnis, nicht .env/.dump/.sql) ==="
    for f in Dockerfile docker-compose.yml compose.yml docker-compose.yaml .dockerignore requirements.txt; do
      if [ -e "$HOST_DIR/$f" ]; then printf '  %-22s %s\n' "$f" "EXISTS ($(stat -c '%s' "$HOST_DIR/$f") bytes)"; else printf '  %-22s %s\n' "$f" "(fehlt)"; fi
    done
    ;;
  host-manifest) expect_zero "$@"
    echo "=== HOST Manifest /opt/historical-v2/app (*.py, keine Symlinks folgen) ==="
    [ -d "$HOST_APP" ] || die "Host-App-Verzeichnis fehlt: $HOST_APP"
    # finde reguläre *.py UND Symlinks auf *.py separat
    (
      find "$HOST_APP" -type f -name "*.py" -printf '%P %s\n' 2>/dev/null | sort \
        | while read -r rel size; do
            sha=$(sha256sum "$HOST_APP/$rel" 2>/dev/null | awk '{print $1}')
            printf 'FILE\t%s\t%s\t%s\n' "$rel" "$size" "${sha:-ERR}"
          done
      find "$HOST_APP" -type l -name "*.py" -printf '%P\n' 2>/dev/null | sort \
        | while read -r rel; do printf 'SYMLINK\t%s\t0\t<not followed>\n' "$rel"; done
    )
    ;;
  host-code)     [ $# -eq 1 ] || die "host-code braucht genau EINEN relativen Pfad (unter app/)"
    rel="$1"
    [[ "$rel" == *".."* ]] && die "Traversal nicht erlaubt"
    [[ "$rel" == /* ]] && die "relativer Pfad erwartet, nicht absolut"
    # realpath zwingend im app-Root
    real="$(realpath -m "$HOST_APP/$rel")"
    [[ "$real" == "$HOST_APP/"* ]] || die "Pfad ausserhalb app-Root blockiert"
    [ -f "$real" ] || die "Datei nicht gefunden oder kein File: $rel"
    [ -L "$real" ] && die "Symlink-Read nicht erlaubt"
    # nur .py ausgeben
    [[ "$rel" == *.py ]] || die "Nur .py-Quelldateien lesbar"
    echo "--- $rel ($(stat -c '%s' "$real") bytes) ---"
    exec cat "$real"
    ;;
  container-manifest) req_ok; expect_zero "$@"
    echo "=== CONTAINER Manifest historical-service:/app/app (*.py) ==="
    docker exec "$CONTAINER" sh -c 'cd /app/app && find . -name "*.py" -type f 2>/dev/null | sed "s#^\./##" | sort | while read f; do size=$(stat -c %s "$f"); sha=$(sha256sum "$f" | cut -d" " -f1); printf "FILE\t%s\t%s\t%s\n" "$f" "$size" "$sha"; done'
    docker exec "$CONTAINER" sh -c 'cd /app/app && find . -name "*.py" -type l 2>/dev/null | sed "s#^\./##" | sort | while read f; do printf "SYMLINK\t%s\t0\t<not followed>\n" "$f"; done' || true
    ;;
  container-code) req_ok; [ $# -eq 1 ] || die "container-code braucht genau EINEN relativen Pfad (unter /app/app/)"
    rel="$1"
    [[ "$rel" == *".."* ]] && die "Traversal nicht erlaubt"
    [[ "$rel" == /* ]] && die "relativer Pfad erwartet, nicht absolut"
    target="/app/app/$rel"
    # sicherstellen Ziel existiert als reguläre Datei & nicht symlink im Container
    if ! docker exec "$CONTAINER" sh -c "[ -f '$target' ]" 2>/dev/null; then die "Datei nicht gefunden oder kein File im Container: $rel"; fi
    if docker exec "$CONTAINER" sh -c "[ -L '$target' ]" 2>/dev/null; then die "Symlink-Read im Container nicht erlaubt"; fi
    [[ "$rel" == *.py ]] || die "Nur .py-Quelldateien lesbar"
    echo "--- $target ---"
    exec docker exec "$CONTAINER" cat "$target"
    ;;
  tree-diff)     req_ok; expect_zero "$@"
    echo "=== TREE-DIFF Host(/opt/historical-v2/app) <-> Container(/app/app) ==="
    hmap="$(mktemp)"; cmap="$(mktemp)"
    # Host: 'rel<TAB>sha'
    find "$HOST_APP" -type f -name "*.py" -printf '%P\n' 2>/dev/null | sort | while IFS= read -r rel; do
      sha="$(sha256sum "$HOST_APP/$rel" 2>/dev/null | awk '{print $1}')"
      printf '%s\t%s\n' "$rel" "$sha"
    done > "$hmap"
    # Container: 'rel<TAB>sha'
    docker exec "$CONTAINER" sh -c 'cd /app/app && find . -type f -name "*.py" -printf "%P\n" 2>/dev/null | sort | while IFS= read -r rel; do sha256sum "$rel" 2>/dev/null | awk -v r="$rel" '\''{print r"\t"$1}'\''; done' > "$cmap"
    tmpunion="$(mktemp)"
    { cut -f1 "$hmap"; cut -f1 "$cmap"; } | sort -u > "$tmpunion"
    echo "HOST_APP=$HOST_APP  CONTAINER_APP=/app/app"
    while IFS= read -r rel; do
      hs="$(awk -F'\t' -v r="$rel" '$1==r{print $2}' "$hmap")"
      cs="$(awk -F'\t' -v r="$rel" '$1==r{print $2}' "$cmap")"
      if [ -n "$hs" ] && [ -n "$cs" ]; then
        if [ "$hs" = "$cs" ]; then status="MATCH"; else status="DIVERGED"; fi
        printf '%-18s %s   [h:%s c:%s]\n' "$status" "$rel" "${hs:0:12}" "${cs:0:12}"
      elif [ -n "$hs" ]; then
        printf '%-18s %s\n' "HOST_ONLY" "$rel"
      else
        printf '%-18s %s\n' "MISSING_ON_HOST" "$rel"
      fi
    done < "$tmpunion"
    rm -f "$hmap" "$cmap" "$tmpunion"
    ;;

  # ============ HOST-SOT-RECOVERY (Phase 13.5, Extension 1) ============
  # KEIN Build/Recreate. Nur: backup-sot -> recover-sot -> verify-sot-recovery
  # -> restore-sot. Fail-closed, Gold-SHA-gebunden, keine freien Pfade.
  backup-sot)    expect_zero "$@"
    # Vollstaendiges Host-SoT-Backup in root-owned Recovery-Bereich
    ts="$(date +%Y%m%d_%H%M%S)"
    bdir="$SOT_BACKUP_ROOT/$ts"
    mkdir -p "$bdir"
    # tar mit Symlinks/Permissions/Ownership; kein Follow (kein -h)
    if ! tar -cpf "$bdir/historical-v2.tar" -C /opt historical-v2 2>/dev/null; then
      rm -rf "$bdir"; die "backup-sot: tar fehlgeschlagen (FAIL CLOSED)"
    fi
    # SHA256-Manifest aller regulären Dateien (nicht Symlinks folgen)
    ( cd /opt/historical-v2 && find . -type f -print0 2>/dev/null | sort -z \
        | while IFS= read -r -d "" f; do
            sha="$(sha256sum "$f" 2>/dev/null | awk '{print $1}')"
            printf '%s  %s\n' "$sha" "${f#./}"
          done ) > "$bdir/SHA256.manifest"
    # Struktur-/Pflichtpruefung (Punkt 4)
    ok=1
    [ -f "$bdir/historical-v2.tar" ] || { echo "FEHLT: tar"; ok=0; }
    [ -s "$bdir/SHA256.manifest" ] || { echo "FEHLT: manifest"; ok=0; }
    [ -f /opt/historical-v2/Dockerfile ] || { echo "FEHLT: Dockerfile"; ok=0; }
    [ -f /opt/historical-v2/docker-compose.yml ] || { echo "FEHLT: compose"; ok=0; }
    [ -d /opt/historical-v2/app ] || { echo "FEHLT: app/"; ok=0; }
    if [ "$ok" != "1" ]; then
      rm -rf "$bdir"; die "backup-sot: Validierung fehlgeschlagen (FAIL CLOSED)"
    fi
    # Session-Marker: eindeutige Markierung der aktuellen Recovery-Session
    echo "$ts" > "$bdir/$SOT_SESSION_MARKER"
    chown -R root:root "$bdir"; chmod 700 "$bdir"
    echo "BACKUP-SOT OK: $bdir"
    echo "  tar: $(stat -c '%s' "$bdir/historical-v2.tar") bytes"
    echo "  manifest: $(wc -l < "$bdir/SHA256.manifest") Dateien"
    echo "  session: $ts"
    ;;
  sot-session)   expect_zero "$@"
    # Zeigt die aktuelle (neueste) Recovery-Session-Backup-ID
    latest="$(ls -1t "$SOT_BACKUP_ROOT" 2>/dev/null | head -1)"
    [ -n "$latest" ] || die "kein backup-sot vorhanden"
    echo "SESSION: $latest"
    echo "PFAD: $SOT_BACKUP_ROOT/$latest"
    ;;
  recover-sot)   req_ok; [ $# -eq 1 ] || die "recover-sot braucht genau EINEN Key (recover-sot-list)"
    key="$1"
    spec="${RECOVERY[$key]:-}"
    [ -n "$spec" ] || die "unbekannter Recovery-Key '$key' (recover-sot-list)"
    IFS='|' read -r csrc htarget gold <<< "$spec"
    # 1. gültiges vollständiges backup-sot vorhanden?
    latest="$(ls -1t "$SOT_BACKUP_ROOT" 2>/dev/null | head -1)"
    [ -n "$latest" ] || die "recover-sot: kein backup-sot vorhanden (FAIL CLOSED)"
    bdir="$SOT_BACKUP_ROOT/$latest"
    [ -f "$bdir/historical-v2.tar" ] && [ -s "$bdir/SHA256.manifest" ] || die "recover-sot: Backup unvollständig (FAIL CLOSED)"
    # 2. Source = historical-service fixed (req_ok bereits geprueft)
    # 3/4. Source regular file, kein Symlink
    if ! docker exec "$CONTAINER" sh -c "[ -f '$csrc' ]" 2>/dev/null; then die "recover-sot: Source kein File im Container: $csrc"; fi
    if docker exec "$CONTAINER" sh -c "[ -L '$csrc' ]" 2>/dev/null; then die "recover-sot: Source ist Symlink (FAIL CLOSED): $csrc"; fi
    # 5. Source SHA == EXPECTED GOLD SHA
    csha="$(docker exec "$CONTAINER" sha256sum "$csrc" 2>/dev/null | awk '{print $1}')" || csha=""
    if [ "$csha" != "$gold" ]; then
      die "recover-sot: Source-SHA-Mismatch fuer '$key' (erwartet $gold, Container $csha) — FAIL CLOSED"
    fi
    # 6. Host target exakt fester Pfad (aus Allowlist, kein freier Pfad)
    [[ "$htarget" == /opt/historical-v2/app/* ]] || die "recover-sot: Host-Ziel ausserhalb app/ (FAIL CLOSED)"
    # 7. Zielverzeichnis kontrolliert erzeugen (z.B. trust/)
    tdir="$(dirname "$htarget")"
    mkdir -p "$tdir"
    # 8. Ziel vor Ueberschreiben einzeln sichern, falls vorhanden
    if [ -e "$htarget" ]; then
      prebak="$bdir/pre-recover/$(basename "$htarget")"
      mkdir -p "$bdir/pre-recover"
      cp -a "$htarget" "$prebak" 2>/dev/null || true
      echo "  pre-recover gesichert: $prebak"
    fi
    # 9. byte-exakt schreiben (docker cp = byte-identisch)
    docker cp "$CONTAINER:$csrc" "$htarget"
    # 10. Ownership/Permissions aus bestehendem Host-Kontext ableiten
    #     (app/ ist UID 10010; trust/ neu -> gleiche Basis wie app/)
    chown 10010:10010 "$htarget" 2>/dev/null || chown root:root "$htarget"
    chmod 644 "$htarget"
    # 11. Host SHA == Gold SHA
    hsha="$(sha256sum "$htarget" | awk '{print $1}')"
    if [ "$hsha" != "$gold" ]; then
      die "recover-sot: Host-SHA-Mismatch fuer '$key' (erwartet $gold, Host $hsha) — FAIL CLOSED"
    fi
    echo "RECOVER-SOT OK: $key"
    echo "  source : $CONTAINER:$csrc"
    echo "  target : $htarget"
    echo "  gold   : $gold"
    echo "  host   : $hsha"
    ;;
  recover-sot-list) expect_zero "$@"
    echo "Recovery-Allowlist (CONFIRMED GOLD, fest gebunden):"
    for k in "${!RECOVERY[@]}"; do
      IFS='|' read -r csrc htarget gold <<< "${RECOVERY[$k]}"
      printf '  %-16s %-45s -> %s\n' "$k" "$csrc" "$htarget"
    done
    ;;
  verify-sot-recovery) req_ok; expect_zero "$@"
    echo "=== VERIFY-SOT-RECOVERY (Gold vs Host vs Container) ==="
    allok=1
    for k in "${!RECOVERY[@]}"; do
      IFS='|' read -r csrc htarget gold <<< "${RECOVERY[$k]}"
      hsha="$(sha256sum "$htarget" 2>/dev/null | awk '{print $1}')" || hsha=""
      csha="$(docker exec "$CONTAINER" sha256sum "$csrc" 2>/dev/null | awk '{print $1}')" || csha=""
      if [ "$hsha" = "$gold" ] && [ "$csha" = "$gold" ]; then
        printf '  MATCH  %-16s %s\n' "$k" "$htarget"
      else
        printf '  FAIL   %-16s host=%s container=%s gold=%s\n' "$k" "${hsha:-MISSING}" "${csha:-MISSING}" "$gold"
        allok=0
      fi
    done
    [ "$allok" = "1" ] && echo "VERIFY-SOT-RECOVERY: ALLE MATCH" || { echo "VERIFY-SOT-RECOVERY: FEHLER"; exit 2; }
    ;;
  restore-sot)   expect_zero "$@"
    # Restore des eindeutig markierten aktuellen Recovery-Session-Backups
    latest="$(ls -1t "$SOT_BACKUP_ROOT" 2>/dev/null | head -1)"
    [ -n "$latest" ] || die "restore-sot: kein backup-sot vorhanden"
    bdir="$SOT_BACKUP_ROOT/$latest"
    [ -f "$bdir/$SOT_SESSION_MARKER" ] || die "restore-sot: kein markiertes Session-Backup (FAIL CLOSED)"
    [ -f "$bdir/historical-v2.tar" ] || die "restore-sot: tar fehlt (FAIL CLOSED)"
    echo "RESTORE-SOT: $bdir"
    echo "  (entpackt /opt/historical-v2 aus Session-Backup, byte-exakt)"
    if ! tar -xpf "$bdir/historical-v2.tar" -C /opt 2>/dev/null; then
      die "restore-sot: tar-Restore fehlgeschlagen (FAIL CLOSED)"
    fi
    echo "RESTORE-SOT OK. KEIN Build/Recreate danach."
    ;;
  snapshot-recovery) snapshot_recovery "$@" ;;
  verify-recovery-snapshot) verify_recovery_snapshot "$@" ;;
  build-recovery-gold) build_recovery_gold "$@" ;;
  verify-recovery-gold-image) verify_recovery_gold_image "$@" ;;
  build-historical) build_historical "$@" ;;
  create-build-exclusion) expect_zero "$@"
    # Build-Pollution-Exclusion implementieren (Punkt 5-8): .dockerignore anlegen/ersetzen
    # PREVIOUS_STATE war ABSENT. NUR exakt die 3 Legacy-Einträge.
    if [ -f "$BUILD_EXCLUSION_FILE" ]; then
      die "create-build-exclusion: .dockerignore existiert bereits (kein Ueberschreiben ohne Backup — manuell)"
    fi
    printf 'app/app/\napp/eligibility.py\n' > "$BUILD_EXCLUSION_FILE"
    echo "BUILD-EXCLUSION OK: $BUILD_EXCLUSION_FILE"
    exclusion_valid && { echo "  validiert: nur app/app/ + app/eligibility.py"; echo "  (PREVIOUS_STATE=ABSENT; keine Gold-Datei betroffen)"; }
    ;;
  show-build-exclusion) expect_zero "$@"
    if [ ! -f "$BUILD_EXCLUSION_FILE" ]; then echo "PREVIOUS_STATE=ABSENT"; exit 0; fi
    echo "=== .dockerignore Inhalt ==="
    cat "$BUILD_EXCLUSION_FILE"
    echo "=== build-exclusion: Gold-Dateien betroffen? (sollte: 0) ==="
    ok=0
    while IFS= read -r f; do
      # f relativ zu /opt/historical-v2; pruefe ob im Gold-Manifest (app/...)
      rel="app/${f#app/}"
      if grep -q "  $rel$" "$GOLD_MANIFEST" 2>/dev/null; then echo "  GOLD-DATEI BETROFFEN: $rel"; ok=1; fi
    done < "$BUILD_EXCLUSION_FILE"
    [ "$ok" = "0" ] && echo "  0 Gold-Dateien ausgeschlossen (OK)"
    ;;
  recreate-historical) recreate_historical "$@" ;;
  verify-gold-reproduction) verify_gold_reproduction "$@" ;;

  *) die "Aufruf: ps|inspect|logs|run|code <K>|hashes|code-list|stage-dir|stage-check <K>|test <K>|search-writes|healthcheck|backup <K>|deploy <K>|rollback <K>|build-def|build-files|host-manifest|host-code <p>|container-manifest|container-code <p>|tree-diff|backup-sot|sot-session|recover-sot <K>|recover-sot-list|verify-sot-recovery|restore-sot|snapshot-recovery|dry-run snapshot-recovery|verify-recovery-snapshot|build-recovery-gold|dry-run build-recovery-gold|verify-recovery-gold-image|build-historical|dry-run build-historical|recreate-historical|dry-run recreate-historical|verify-gold-reproduction|create-build-exclusion|show-build-exclusion"
    ;;
esac