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>

klausur-service/scripts/run_nibis_ingestion.sh

@@ -0,0 +1,85 @@
+#!/bin/bash
+# NiBiS Ingestion Pipeline Runner
+# Extracts ZIPs and indexes Erwartungshorizonte in Qdrant
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+BACKEND_DIR="$SCRIPT_DIR/../backend"
+
+echo "=============================================="
+echo "NiBiS Ingestion Pipeline"
+echo "=============================================="
+
+# Check if we're in Docker or local
+if [ -f /.dockerenv ]; then
+    echo "Running in Docker container"
+    cd /app/backend
+else
+    echo "Running locally"
+    cd "$BACKEND_DIR"
+
+    # Activate venv if exists
+    if [ -d "venv" ]; then
+        source venv/bin/activate
+    fi
+fi
+
+# Check environment
+echo ""
+echo "Environment:"
+echo "  QDRANT_URL: ${QDRANT_URL:-http://localhost:6333}"
+echo "  OPENAI_API_KEY: ${OPENAI_API_KEY:+[SET]}"
+echo ""
+
+# Parse arguments
+DRY_RUN=""
+YEAR=""
+SUBJECT=""
+ALL_DOCS=""
+MANIFEST=""
+
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        --dry-run)
+            DRY_RUN="--dry-run"
+            shift
+            ;;
+        --year)
+            YEAR="--year $2"
+            shift 2
+            ;;
+        --subject)
+            SUBJECT="--subject $2"
+            shift 2
+            ;;
+        --all-docs)
+            ALL_DOCS="--all-docs"
+            shift
+            ;;
+        --manifest)
+            MANIFEST="--manifest $2"
+            shift 2
+            ;;
+        *)
+            echo "Unknown option: $1"
+            echo ""
+            echo "Usage: $0 [options]"
+            echo ""
+            echo "Options:"
+            echo "  --dry-run       Only analyze, don't index"
+            echo "  --year YEAR     Filter by year (e.g., 2024)"
+            echo "  --subject SUBJ  Filter by subject (e.g., Deutsch)"
+            echo "  --all-docs      Include all documents, not just EWH"
+            echo "  --manifest FILE Create manifest JSON file"
+            exit 1
+            ;;
+    esac
+done
+
+# Run ingestion
+echo "Starting ingestion..."
+python3 nibis_ingestion.py $DRY_RUN $YEAR $SUBJECT $ALL_DOCS $MANIFEST
+
+echo ""
+echo "Done!"