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>

geo-service/scripts/download_osm.sh

@@ -0,0 +1,113 @@
+#!/bin/bash
+# ============================================
+# OSM Data Download Script for GeoEdu Service
+# ============================================
+#
+# WICHTIG: Dieses Script startet einen Download von ca. 4.4 GB!
+# Nur nach expliziter Freigabe ausfuehren!
+#
+# Quelle: Geofabrik (offizieller OSM-Mirror)
+# Lizenz: ODbL (Open Database License)
+# Attribution: © OpenStreetMap contributors
+#
+# Nutzung:
+#   ./download_osm.sh [--dry-run]
+#
+# ============================================
+
+set -e
+
+# Configuration
+DATA_DIR="${OSM_DATA_DIR:-/app/data/osm}"
+GEOFABRIK_URL="https://download.geofabrik.de/europe/germany-latest.osm.pbf"
+GEOFABRIK_MD5_URL="https://download.geofabrik.de/europe/germany-latest.osm.pbf.md5"
+OUTPUT_FILE="germany-latest.osm.pbf"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+echo -e "${YELLOW}============================================${NC}"
+echo -e "${YELLOW}GeoEdu Service - OSM Data Download${NC}"
+echo -e "${YELLOW}============================================${NC}"
+echo ""
+echo -e "Quelle:      ${GREEN}Geofabrik${NC}"
+echo -e "Datei:       ${GREEN}Germany PBF${NC}"
+echo -e "Groesse:     ${YELLOW}~4.4 GB${NC}"
+echo -e "Lizenz:      ${GREEN}ODbL (Open Database License)${NC}"
+echo -e "Attribution: ${GREEN}© OpenStreetMap contributors${NC}"
+echo ""
+
+# Check for dry-run mode
+if [[ "$1" == "--dry-run" ]]; then
+    echo -e "${YELLOW}[DRY-RUN] Kein Download wird durchgefuehrt.${NC}"
+    echo ""
+    echo "Wuerde herunterladen von:"
+    echo "  $GEOFABRIK_URL"
+    echo ""
+    echo "Nach:"
+    echo "  $DATA_DIR/$OUTPUT_FILE"
+    echo ""
+    exit 0
+fi
+
+# Confirm download
+echo -e "${RED}ACHTUNG: Download startet ~4.4 GB Daten!${NC}"
+echo ""
+read -p "Download starten? (j/N) " -n 1 -r
+echo ""
+
+if [[ ! $REPLY =~ ^[JjYy]$ ]]; then
+    echo "Download abgebrochen."
+    exit 1
+fi
+
+# Create data directory
+mkdir -p "$DATA_DIR"
+cd "$DATA_DIR"
+
+# Download MD5 checksum first
+echo ""
+echo -e "${GREEN}[1/3] Lade MD5-Pruefsumme herunter...${NC}"
+curl -L -o "${OUTPUT_FILE}.md5" "$GEOFABRIK_MD5_URL"
+
+# Download OSM data
+echo ""
+echo -e "${GREEN}[2/3] Lade OSM-Daten herunter (~4.4 GB)...${NC}"
+echo "       Dies kann je nach Internetverbindung 5-60 Minuten dauern."
+echo ""
+
+# Use wget with resume support
+if command -v wget &> /dev/null; then
+    wget -c -O "$OUTPUT_FILE" "$GEOFABRIK_URL"
+else
+    curl -L -C - -o "$OUTPUT_FILE" "$GEOFABRIK_URL"
+fi
+
+# Verify checksum
+echo ""
+echo -e "${GREEN}[3/3] Verifiziere MD5-Pruefsumme...${NC}"
+
+if md5sum -c "${OUTPUT_FILE}.md5"; then
+    echo ""
+    echo -e "${GREEN}✓ Download erfolgreich!${NC}"
+    echo ""
+    echo "Datei: $DATA_DIR/$OUTPUT_FILE"
+    echo "Groesse: $(du -h "$OUTPUT_FILE" | cut -f1)"
+    echo ""
+    echo -e "${YELLOW}Naechster Schritt:${NC}"
+    echo "  ./import_osm.sh  # OSM in PostGIS importieren"
+    echo "  ./generate_tiles.sh  # PMTiles generieren"
+else
+    echo ""
+    echo -e "${RED}✗ MD5-Pruefsumme stimmt nicht ueberein!${NC}"
+    echo "Bitte Download erneut starten."
+    exit 1
+fi
+
+echo ""
+echo -e "${YELLOW}============================================${NC}"
+echo -e "${YELLOW}Download abgeschlossen${NC}"
+echo -e "${YELLOW}============================================${NC}"