fix: Restore all files lost during destructive rebase

A previous `git pull --rebase origin main` dropped 177 local commits,
losing 3400+ files across admin-v2, backend, studio-v2, website,
klausur-service, and many other services. The partial restore attempt
(660295e2) only recovered some files.

This commit restores all missing files from pre-rebase ref 98933f5e
while preserving post-rebase additions (night-scheduler, night-mode UI,
NightModeWidget dashboard integration).

Restored features include:
- AI Module Sidebar (FAB), OCR Labeling, OCR Compare
- GPU Dashboard, RAG Pipeline, Magic Help
- Klausur-Korrektur (8 files), Abitur-Archiv (5+ files)
- Companion, Zeugnisse-Crawler, Screen Flow
- Full backend, studio-v2, website, klausur-service
- All compliance SDKs, agent-core, voice-service
- CI/CD configs, documentation, scripts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/restore.sh

@@ -0,0 +1,94 @@
+#!/bin/bash
+# BreakPilot Database Restore Script
+# Stellt ein Backup der PostgreSQL-Datenbank wieder her
+
+set -e
+
+# Konfiguration
+BACKUP_DIR="${BACKUP_DIR:-./backups}"
+CONTAINER_NAME="${CONTAINER_NAME:-breakpilot-pwa-postgres}"
+DB_USER="${DB_USER:-breakpilot}"
+DB_NAME="${DB_NAME:-breakpilot_db}"
+
+# Farben für Output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+echo -e "${GREEN}=== BreakPilot Database Restore ===${NC}"
+echo ""
+
+# Backup-Datei als Argument oder automatisch das neueste wählen
+if [ -n "$1" ]; then
+    BACKUP_FILE="$1"
+else
+    # Neuestes Backup finden
+    BACKUP_FILE=$(ls -t "$BACKUP_DIR"/breakpilot_*.sql.gz 2>/dev/null | head -1)
+
+    if [ -z "$BACKUP_FILE" ]; then
+        echo -e "${RED}Error: No backup files found in $BACKUP_DIR${NC}"
+        exit 1
+    fi
+
+    echo -e "${YELLOW}No backup file specified. Using most recent:${NC}"
+    echo "$BACKUP_FILE"
+    echo ""
+fi
+
+# Prüfen ob Backup-Datei existiert
+if [ ! -f "$BACKUP_FILE" ]; then
+    echo -e "${RED}Error: Backup file not found: $BACKUP_FILE${NC}"
+    exit 1
+fi
+
+# Prüfen ob Container läuft
+if ! docker ps --format '{{.Names}}' | grep -q "^${CONTAINER_NAME}$"; then
+    echo -e "${RED}Error: Container '$CONTAINER_NAME' is not running${NC}"
+    exit 1
+fi
+
+# Warnung anzeigen
+echo -e "${RED}⚠️  WARNING: This will overwrite all current data!${NC}"
+echo ""
+read -p "Are you sure you want to restore from this backup? (yes/no): " CONFIRM
+
+if [ "$CONFIRM" != "yes" ]; then
+    echo "Restore cancelled."
+    exit 0
+fi
+
+echo ""
+echo -e "${YELLOW}Stopping dependent services...${NC}"
+
+# Consent Service stoppen (falls läuft)
+docker stop breakpilot-pwa-consent-service 2>/dev/null || true
+docker stop breakpilot-pwa-backend 2>/dev/null || true
+
+echo -e "${YELLOW}Restoring database...${NC}"
+
+# Datenbank droppen und neu erstellen
+docker exec "$CONTAINER_NAME" psql -U "$DB_USER" -d postgres -c "DROP DATABASE IF EXISTS ${DB_NAME};"
+docker exec "$CONTAINER_NAME" psql -U "$DB_USER" -d postgres -c "CREATE DATABASE ${DB_NAME};"
+
+# Backup wiederherstellen
+gunzip -c "$BACKUP_FILE" | docker exec -i "$CONTAINER_NAME" psql -U "$DB_USER" -d "$DB_NAME"
+
+echo -e "${GREEN}✓ Database restored successfully${NC}"
+
+echo ""
+echo -e "${YELLOW}Restarting services...${NC}"
+
+# Services wieder starten
+docker start breakpilot-pwa-consent-service 2>/dev/null || true
+docker start breakpilot-pwa-backend 2>/dev/null || true
+
+# Warten bis Services bereit sind
+sleep 5
+
+echo ""
+echo -e "${GREEN}=== Restore completed! ===${NC}"
+echo ""
+echo "Verify the restore by checking:"
+echo "  - http://localhost:8000/app"
+echo "  - http://localhost:8081/health"