diff --git a/.github/workflows/release-docker.yml b/.github/workflows/release-docker.yml
index 72720ad..ef88531 100644
--- a/.github/workflows/release-docker.yml
+++ b/.github/workflows/release-docker.yml
@@ -150,11 +150,25 @@ jobs:
             ${{ steps.meta.outputs.image }}
             ghcr.io/aiirondev/legendary-octo-garbanzo:latest
 
+      - name: Build and push development image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: |
+            ghcr.io/aiirondev/legendary-octo-garbanzo:development
+
       - name: Build local image tar for offline deploy
         run: |
           docker pull "${{ steps.meta.outputs.image }}"
           docker save "${{ steps.meta.outputs.image }}" | gzip > "inventarsystem-image-${{ steps.meta.outputs.tag }}.tar.gz"
 
+      - name: Build local development image tar for offline deploy
+        run: |
+          docker pull ghcr.io/aiirondev/legendary-octo-garbanzo:development || true
+          docker save ghcr.io/aiirondev/legendary-octo-garbanzo:development | gzip > "inventarsystem-image-development.tar.gz" || true
+
       - name: Create release-only docker bundle
         run: |
           mkdir -p release-bundle
@@ -238,6 +252,20 @@ jobs:
           cp MULTITENANT_DEPLOYMENT.md release-bundle/MULTITENANT_DEPLOYMENT.md
           cp MULTITENANT_PYTHON_API.md release-bundle/MULTITENANT_PYTHON_API.md
 
+          # Include optional development image tar and helper note
+          if [ -f "inventarsystem-image-development.tar.gz" ]; then
+            cp inventarsystem-image-development.tar.gz release-bundle/ || true
+          fi
+
+          cat > release-bundle/DEVELOPMENT.md <<'EOF'
+          This bundle contains an optional development image tar: inventarsystem-image-development.tar.gz
+                      
+          To install the development build on a target host, extract the bundle and run:
+          
+            ./update.sh development
+          
+          EOF
+
           chmod +x release-bundle/start.sh release-bundle/stop.sh release-bundle/restart.sh release-bundle/backup.sh release-bundle/update.sh release-bundle/manage-tenant.sh release-bundle/run-tenant-cmd.sh
           tar -czf inventarsystem-docker-bundle.tar.gz -C release-bundle .
 
@@ -248,5 +276,6 @@ jobs:
           files: |
             inventarsystem-docker-bundle.tar.gz
             inventarsystem-image-${{ steps.meta.outputs.tag }}.tar.gz
-          fail_on_unmatched_files: true
+            inventarsystem-image-development.tar.gz
+          fail_on_unmatched_files: false
           generate_release_notes: true
diff --git a/IMAGE_OPTIMIZATION.md b/Legal/IMAGE_OPTIMIZATION.md
similarity index 100%
rename from IMAGE_OPTIMIZATION.md
rename to Legal/IMAGE_OPTIMIZATION.md
diff --git a/MULTITENANT_DEPLOYMENT.md b/Legal/MULTITENANT_DEPLOYMENT.md
similarity index 100%
rename from MULTITENANT_DEPLOYMENT.md
rename to Legal/MULTITENANT_DEPLOYMENT.md
diff --git a/MULTITENANT_INTEGRATION.md b/Legal/MULTITENANT_INTEGRATION.md
similarity index 100%
rename from MULTITENANT_INTEGRATION.md
rename to Legal/MULTITENANT_INTEGRATION.md
diff --git a/MULTITENANT_OPTIMIZATION.md b/Legal/MULTITENANT_OPTIMIZATION.md
similarity index 100%
rename from MULTITENANT_OPTIMIZATION.md
rename to Legal/MULTITENANT_OPTIMIZATION.md
diff --git a/MULTITENANT_PYTHON_API.md b/Legal/MULTITENANT_PYTHON_API.md
similarity index 100%
rename from MULTITENANT_PYTHON_API.md
rename to Legal/MULTITENANT_PYTHON_API.md
diff --git a/PDF_AUDIT_EXPORT_DOCUMENTATION.md b/Legal/PDF_AUDIT_EXPORT_DOCUMENTATION.md
similarity index 100%
rename from PDF_AUDIT_EXPORT_DOCUMENTATION.md
rename to Legal/PDF_AUDIT_EXPORT_DOCUMENTATION.md
diff --git a/PDF_IMPLEMENTATION_GUIDE.md b/Legal/PDF_IMPLEMENTATION_GUIDE.md
similarity index 100%
rename from PDF_IMPLEMENTATION_GUIDE.md
rename to Legal/PDF_IMPLEMENTATION_GUIDE.md
diff --git a/QUICK_START_PDF_EXPORT.md b/Legal/QUICK_START_PDF_EXPORT.md
similarity index 100%
rename from QUICK_START_PDF_EXPORT.md
rename to Legal/QUICK_START_PDF_EXPORT.md
diff --git a/TEST_AUSLEIHUNG.md b/Legal/TEST_AUSLEIHUNG.md
similarity index 100%
rename from TEST_AUSLEIHUNG.md
rename to Legal/TEST_AUSLEIHUNG.md
diff --git a/WEB_PUSH_NOTIFICATIONS.md b/Legal/WEB_PUSH_NOTIFICATIONS.md
similarity index 100%
rename from WEB_PUSH_NOTIFICATIONS.md
rename to Legal/WEB_PUSH_NOTIFICATIONS.md
diff --git a/Web/app.py b/Web/app.py
index 60e6ec7..9af22ae 100755
--- a/Web/app.py
+++ b/Web/app.py
@@ -29,12 +29,12 @@ from flask import Flask, render_template, request, redirect, url_for, session, f
 from werkzeug.utils import secure_filename
 from werkzeug.middleware.proxy_fix import ProxyFix
 from jinja2 import TemplateNotFound
-import user as us
-import items as it
-import ausleihung as au
-import audit_log as al
+import Web.modules.database.user as us
+import Web.modules.database.items as it
+import Web.modules.database.ausleihung as au
+import Web.modules.logs.audit_log as al
 import push_notifications as pn
-import pdf_export 
+import Web.modules.inventarsystem.pdf_export as pdf_export 
 import datetime
 from apscheduler.schedulers.background import BackgroundScheduler
 from bson.objectid import ObjectId
@@ -69,7 +69,7 @@ import uuid
 from PIL import Image, ImageOps
 import mimetypes
 import subprocess
-from data_protection import (
+from Web.modules.inventarsystem.data_protection import (
     decrypt_document_fields,
     encrypt_document_fields,
     encrypt_soft_deleted_media_pack,
@@ -77,8 +77,8 @@ from data_protection import (
 
 # Set base directory and centralized settings
 BASE_DIR = os.path.dirname(os.path.abspath(__file__))
-import settings as cfg
-from settings import MongoClient
+import Web.modules.database.settings as cfg
+from Web.modules.database.settings import MongoClient
 from tenant import get_tenant_context
 
 
@@ -2724,7 +2724,7 @@ def library_export_excel(scope):
     username = session['username']
     is_admin_user = us.check_admin(username)
     
-    import excel_export
+    import Web.modules.inventarsystem.excel_export as excel_export
     client = MongoClient(MONGODB_HOST, MONGODB_PORT)
     db = client[cfg.MONGODB_DB]
     items_collection = db['items']
@@ -10104,7 +10104,7 @@ def reset_item(id):
     
     try:
         # Import the ausleihung module
-        import ausleihung as au
+        import Web.modules.database.ausleihung as au
         
         result = au.reset_item_completely(id)
         
diff --git a/Web/audit_log.py b/Web/audit_log.py
deleted file mode 100644
index 508d1a6..0000000
--- a/Web/audit_log.py
+++ /dev/null
@@ -1,149 +0,0 @@
-"""
-Tamper-evident audit logging helpers.
-
-The audit chain stores each entry with a hash of the previous entry.
-Any mutation in history breaks the chain verification.
-"""
-
-import datetime
-import hashlib
-import json
-import random
-import time
-
-from pymongo.errors import DuplicateKeyError
-
-
-def _stable_json(value):
-    """Serialize dictionaries in a stable way for deterministic hashing."""
-    return json.dumps(value, sort_keys=True, separators=(",", ":"), ensure_ascii=False, default=str)
-
-
-def _entry_hash(prev_hash, payload):
-    """Build the chained entry hash from previous hash + canonical payload."""
-    base = f"{prev_hash}|{_stable_json(payload)}"
-    return hashlib.sha256(base.encode("utf-8")).hexdigest()
-
-
-def append_audit_event(db, event_type, actor, payload, request_ip=None, source="web", max_retries=5):
-    """
-    Append an audit event to a tamper-evident chain.
-
-    Args:
-        db: MongoDB database handle.
-        event_type (str): Event category.
-        actor (str): User/system who performed the action.
-        payload (dict): Event details.
-        request_ip (str, optional): Request origin.
-        source (str): Source subsystem.
-
-    Returns:
-        dict: Inserted audit entry.
-    """
-    logs = db["audit_log"]
-    attempts = 0
-
-    while attempts <= max_retries:
-        previous = logs.find_one(sort=[("chain_index", -1)])
-        prev_hash = previous.get("entry_hash", "") if previous else ""
-        chain_index = int(previous.get("chain_index", 0)) + 1 if previous else 1
-
-        timestamp = datetime.datetime.utcnow()
-        entry_payload = {
-            "event_type": event_type,
-            "actor": actor or "system",
-            "source": source,
-            "ip": request_ip or "",
-            "payload": payload or {},
-            "timestamp": timestamp.isoformat() + "Z",
-        }
-
-        entry_hash = _entry_hash(prev_hash, entry_payload)
-
-        entry = {
-            **entry_payload,
-            "created_at": timestamp,
-            "prev_hash": prev_hash,
-            "entry_hash": entry_hash,
-            "chain_index": chain_index,
-        }
-
-        try:
-            logs.insert_one(entry)
-            return entry
-        except DuplicateKeyError:
-            attempts += 1
-            if attempts > max_retries:
-                raise
-            # Exponential backoff with jitter to avoid retry storms.
-            delay = min(0.25, (0.005 * (2 ** attempts)) + random.random() * 0.01)
-            time.sleep(delay)
-
-
-def ensure_audit_indexes(db):
-    """Create indexes required for fast and safe audit operations."""
-    logs = db["audit_log"]
-    logs.create_index("chain_index", unique=True, name="audit_chain_index_unique")
-    logs.create_index("created_at", name="audit_created_at_idx")
-    logs.create_index("event_type", name="audit_event_type_idx")
-
-
-def verify_audit_chain(db):
-    """Verify hash chain integrity across all stored audit entries."""
-    logs = db["audit_log"]
-    entries = list(logs.find({}, {"_id": 1, "event_type": 1, "actor": 1, "source": 1, "ip": 1, "payload": 1, "timestamp": 1, "prev_hash": 1, "entry_hash": 1, "chain_index": 1}).sort("chain_index", 1))
-
-    previous_hash = ""
-    previous_index = 0
-    mismatches = []
-
-    for entry in entries:
-        chain_index = int(entry.get("chain_index", 0))
-        prev_hash = entry.get("prev_hash", "")
-        entry_hash = entry.get("entry_hash", "")
-
-        payload = {
-            "event_type": entry.get("event_type", ""),
-            "actor": entry.get("actor", ""),
-            "source": entry.get("source", ""),
-            "ip": entry.get("ip", ""),
-            "payload": entry.get("payload", {}),
-            "timestamp": entry.get("timestamp", ""),
-        }
-
-        expected_hash = _entry_hash(previous_hash, payload)
-
-        if chain_index != previous_index + 1:
-            mismatches.append({
-                "chain_index": chain_index,
-                "error": "chain_index_gap",
-                "expected": previous_index + 1,
-                "found": chain_index,
-            })
-
-        if prev_hash != previous_hash:
-            mismatches.append({
-                "chain_index": chain_index,
-                "error": "prev_hash_mismatch",
-                "expected": previous_hash,
-                "found": prev_hash,
-            })
-
-        if entry_hash != expected_hash:
-            mismatches.append({
-                "chain_index": chain_index,
-                "error": "entry_hash_mismatch",
-                "expected": expected_hash,
-                "found": entry_hash,
-            })
-
-        previous_hash = entry_hash
-        previous_index = chain_index
-
-    return {
-        "ok": len(mismatches) == 0,
-        "count": len(entries),
-        "last_chain_index": previous_index,
-        "last_hash": previous_hash,
-        "mismatches": mismatches,
-    }
diff --git a/Web/ausleihung_log.py b/Web/ausleihung_log.py
deleted file mode 100755
index 715cbdc..0000000
--- a/Web/ausleihung_log.py
+++ /dev/null
@@ -1,45 +0,0 @@
-'''
-   Copyright 2025-2026 AIIrondev
-
-   Licensed under the Inventarsystem EULA (Endbenutzer-Lizenzvertrag).
-   See Legal/LICENSE for the full license text.
-   Unauthorized commercial use, SaaS hosting, or removal of branding is prohibited.
-   For commercial licensing inquiries: https://github.com/AIIrondev
-'''
-"""
-Funktion zum Protokollieren von Statusänderungen bei Ausleihungen
-"""
-import os
-import datetime
-from bson.objectid import ObjectId
-
-def log_status_change(ausleihung_id, old_status, new_status, user=None):
-    """
-    Protokolliert eine Statusänderung einer Ausleihung in einer Log-Datei.
-    
-    Args:
-        ausleihung_id: Die ID der Ausleihung
-        old_status: Der alte Status
-        new_status: Der neue Status
-        user: Der Benutzer, der die Änderung vorgenommen hat (optional)
-    """
-    try:
-        # Erstelle Log-Verzeichnis, falls es nicht existiert
-        log_dir = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'logs')
-        if not os.path.exists(log_dir):
-            os.makedirs(log_dir)
-        
-        # Log-Datei für Statusänderungen
-        log_file = os.path.join(log_dir, 'ausleihungen_status_changes.log')
-        
-        # Protokolliere die Änderung
-        timestamp = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
-        user_info = f" by {user}" if user else ""
-        
-        with open(log_file, 'a', encoding='utf-8') as f:
-            f.write(f"{timestamp}: Ausleihung {ausleihung_id} - Status changed from '{old_status}' to '{new_status}'{user_info}\n")
-            
-        return True
-    except Exception as e:
-        print(f"Fehler beim Protokollieren der Statusänderung: {e}")
-        return False
diff --git a/Web/modules/database/__init__.py b/Web/modules/database/__init__.py
new file mode 100644
index 0000000..218a7de
--- /dev/null
+++ b/Web/modules/database/__init__.py
@@ -0,0 +1,4 @@
+"""
+"""
+
+# Log initialization
\ No newline at end of file
diff --git a/Web/ausleihung.py b/Web/modules/database/ausleihung.py
similarity index 99%
rename from Web/ausleihung.py
rename to Web/modules/database/ausleihung.py
index ebf9076..020feb4 100755
--- a/Web/ausleihung.py
+++ b/Web/modules/database/ausleihung.py
@@ -32,8 +32,8 @@ from datetime import timezone
 import os
 import json
 import shutil
-import settings as cfg
-from settings import MongoClient
+import Web.modules.database.settings as cfg
+from Web.modules.database.settings import MongoClient
 
 # Add this helper function after imports
 def ensure_timezone_aware(dt):
@@ -103,7 +103,7 @@ def get_current_status(ausleihung, log_changes=False, user=None):
     if log_changes and new_status != original_status and '_id' in ausleihung:
         try:
             # Importieren Sie das Modul nur bei Bedarf, um zirkuläre Importe zu vermeiden
-            import ausleihung_log
+            import Web.modules.logs.ausleihung_log as ausleihung_log
             ausleihung_log.log_status_change(
                 str(ausleihung['_id']), 
                 original_status, 
diff --git a/Web/items.py b/Web/modules/database/items.py
similarity index 99%
rename from Web/items.py
rename to Web/modules/database/items.py
index 110dac1..609d177 100755
--- a/Web/items.py
+++ b/Web/modules/database/items.py
@@ -28,8 +28,8 @@ Collection Structure:
 '''
 from bson.objectid import ObjectId
 import datetime
-import settings as cfg
-from settings import MongoClient
+import Web.modules.database.settings as cfg
+from Web.modules.database.settings import MongoClient
 
 
 LIBRARY_ITEM_TYPES = ('book', 'cd', 'dvd', 'media')
diff --git a/Web/query_cache.py b/Web/modules/database/query_cache.py
similarity index 100%
rename from Web/query_cache.py
rename to Web/modules/database/query_cache.py
diff --git a/Web/settings.py b/Web/modules/database/settings.py
similarity index 99%
rename from Web/settings.py
rename to Web/modules/database/settings.py
index ad75666..9e67cbb 100644
--- a/Web/settings.py
+++ b/Web/modules/database/settings.py
@@ -211,7 +211,7 @@ class _TenantAwareBool:
         return f"_TenantAwareBool(module_name={self.module_name!r}, value={self.resolve()!r})"
 
 
-from module_registry import registry as MODULES
+from Web.modules.module_registry import registry as MODULES
 
 INVENTORY_MODULE_ENABLED = _TenantAwareBool('inventory', _get(_conf, ['modules', 'inventory', 'enabled'], DEFAULTS['modules']['inventory']['enabled']))
 LIBRARY_MODULE_ENABLED = _TenantAwareBool('library', _get(_conf, ['modules', 'library', 'enabled'], DEFAULTS['modules']['library']['enabled']))
diff --git a/Web/update_filters.py b/Web/modules/database/update_filters.py
similarity index 95%
rename from Web/update_filters.py
rename to Web/modules/database/update_filters.py
index 8f5d912..6d2404b 100644
--- a/Web/update_filters.py
+++ b/Web/modules/database/update_filters.py
@@ -1,5 +1,5 @@
 from pymongo import MongoClient
-import Web.settings as cfg
+import Web.modules.database.settings as cfg
 
 def get_filter_names():
     client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
diff --git a/Web/user.py b/Web/modules/database/user.py
similarity index 99%
rename from Web/user.py
rename to Web/modules/database/user.py
index 3d4792c..a0f5312 100755
--- a/Web/user.py
+++ b/Web/modules/database/user.py
@@ -17,8 +17,8 @@ import re
 import secrets
 import string
 from bson.objectid import ObjectId
-import settings as cfg
-from settings import MongoClient
+import Web.modules.database.settings as cfg
+from Web.modules.database.settings import MongoClient
 
 logger = logging.getLogger('app')
 logger.setLevel(logging.DEBUG)
diff --git a/Web/modules/inventarsystem/__init__.py b/Web/modules/inventarsystem/__init__.py
new file mode 100644
index 0000000..01704c2
--- /dev/null
+++ b/Web/modules/inventarsystem/__init__.py
@@ -0,0 +1,6 @@
+"""
+Inventar System Funktionen
+
+
+
+"""
\ No newline at end of file
diff --git a/Web/backup_invoices.py b/Web/modules/inventarsystem/backup_invoices.py
similarity index 100%
rename from Web/backup_invoices.py
rename to Web/modules/inventarsystem/backup_invoices.py
diff --git a/Web/data_protection.py b/Web/modules/inventarsystem/data_protection.py
similarity index 99%
rename from Web/data_protection.py
rename to Web/modules/inventarsystem/data_protection.py
index 8e729d9..94d5dc0 100644
--- a/Web/data_protection.py
+++ b/Web/modules/inventarsystem/data_protection.py
@@ -10,7 +10,7 @@ from datetime import datetime
 
 from cryptography.fernet import Fernet, InvalidToken
 
-import settings as cfg
+import Web.modules.database.settings as cfg
 
 _ENC_PREFIX = "enc::"
 
diff --git a/Web/excel_export.py b/Web/modules/inventarsystem/excel_export.py
similarity index 100%
rename from Web/excel_export.py
rename to Web/modules/inventarsystem/excel_export.py
diff --git a/Web/generate_user.py b/Web/modules/inventarsystem/generate_user.py
similarity index 98%
rename from Web/generate_user.py
rename to Web/modules/inventarsystem/generate_user.py
index 58f4848..1cf7293 100755
--- a/Web/generate_user.py
+++ b/Web/modules/inventarsystem/generate_user.py
@@ -6,7 +6,7 @@
    Unauthorized commercial use, SaaS hosting, or removal of branding is prohibited.
    For commercial licensing inquiries: https://github.com/AIIrondev
 '''
-import user
+import Web.modules.database.user as user
 import sys
 import getpass
 import re
diff --git a/Web/pdf_export.py b/Web/modules/inventarsystem/pdf_export.py
similarity index 99%
rename from Web/pdf_export.py
rename to Web/modules/inventarsystem/pdf_export.py
index aa73d2f..535d263 100644
--- a/Web/pdf_export.py
+++ b/Web/modules/inventarsystem/pdf_export.py
@@ -18,7 +18,7 @@ from reportlab.pdfgen import canvas
 from reportlab.lib.enums import TA_LEFT, TA_RIGHT, TA_CENTER, TA_JUSTIFY
 from reportlab.pdfbase import pdfmetrics
 from reportlab.pdfbase.ttfonts import TTFont
-import settings as cfg
+import Web.modules.database.settings as cfg
 
 
 __version__ = cfg.APP_VERSION
diff --git a/Web/module_registry.py b/Web/modules/module_registry.py
similarity index 100%
rename from Web/module_registry.py
rename to Web/modules/module_registry.py
diff --git a/Web/modules/terminplaner/__init__.py b/Web/modules/terminplaner/__init__.py
new file mode 100644
index 0000000..ce47b77
--- /dev/null
+++ b/Web/modules/terminplaner/__init__.py
@@ -0,0 +1 @@
+print("hello")
\ No newline at end of file
diff --git a/Web/push_notifications.py b/Web/push_notifications.py
index 07284cf..6a3b969 100644
--- a/Web/push_notifications.py
+++ b/Web/push_notifications.py
@@ -11,8 +11,8 @@ import requests
 import hashlib
 import logging
 
-import settings as cfg
-from settings import MongoClient
+import Web.modules.database.settings as cfg
+from Web.modules.database.settings import MongoClient
 
 logger = logging.getLogger(__name__)
 
diff --git a/Web/tenant.py b/Web/tenant.py
index 6bfc16c..ed50c38 100644
--- a/Web/tenant.py
+++ b/Web/tenant.py
@@ -12,8 +12,8 @@ from functools import wraps
 import logging
 import os
 import re
-import settings as cfg
-from settings import MongoClient
+import Web.modules.database.settings as cfg
+from Web.modules.database.settings import MongoClient
 
 logger = logging.getLogger(__name__)
 
diff --git a/flask.pid b/flask.pid
deleted file mode 100644
index 0d268ab..0000000
--- a/flask.pid
+++ /dev/null
@@ -1 +0,0 @@
-394722
diff --git a/run-tenant-cmd.sh b/run-tenant-cmd.sh
deleted file mode 100755
index 7b0316a..0000000
--- a/run-tenant-cmd.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-# Wrapper to run tenant management fully containerized via docker-compose
-PROJECT_NAME=${COMPOSE_PROJECT_NAME:-$(basename "$PWD" | tr '[:upper:]' '[:lower:]')}
-# Pass the absolute working directory to the container so docker compose can resolve paths correctly
-docker compose -f docker-compose-multitenant.yml --profile tools run --rm -e COMPOSE_PROJECT_NAME="$PROJECT_NAME" -e HOST_WORKDIR="$PWD" tenant-manager "$@"
diff --git a/test-data/excel-import/01_standard_format.xlsx b/test-data/excel-import/01_standard_format.xlsx
deleted file mode 100644
index 923b01d..0000000
Binary files a/test-data/excel-import/01_standard_format.xlsx and /dev/null differ
diff --git a/test-data/excel-import/02_synonym_format.xlsx b/test-data/excel-import/02_synonym_format.xlsx
deleted file mode 100644
index 00e2704..0000000
Binary files a/test-data/excel-import/02_synonym_format.xlsx and /dev/null differ
diff --git a/test-data/excel-import/03_mixed_edge_cases.xlsx b/test-data/excel-import/03_mixed_edge_cases.xlsx
deleted file mode 100644
index 5cd0b69..0000000
Binary files a/test-data/excel-import/03_mixed_edge_cases.xlsx and /dev/null differ
diff --git a/test-data/excel-import/04_bulk_inventory_4000_rows.xlsx b/test-data/excel-import/04_bulk_inventory_4000_rows.xlsx
deleted file mode 100644
index e98fba5..0000000
Binary files a/test-data/excel-import/04_bulk_inventory_4000_rows.xlsx and /dev/null differ
diff --git a/test-data/excel-import/05_bulk_library_3000_rows.xlsx b/test-data/excel-import/05_bulk_library_3000_rows.xlsx
deleted file mode 100644
index 7fc09c8..0000000
Binary files a/test-data/excel-import/05_bulk_library_3000_rows.xlsx and /dev/null differ
diff --git a/test_ausleihung.py b/test_ausleihung.py
deleted file mode 100644
index 86f028a..0000000
--- a/test_ausleihung.py
+++ /dev/null
@@ -1,588 +0,0 @@
-"""
-Test Suite for Ausleihung (Borrowing) System
-Tests all core functionality of the borrowing/lending module
-
-Run with: pytest test_ausleihung.py -v
-"""
-
-import pytest
-import datetime
-from bson.objectid import ObjectId
-import sys
-import os
-
-# Add Web directory to path
-sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'Web'))
-
-import ausleihung
-import settings as cfg
-from settings import MongoClient
-
-
-@pytest.fixture(scope='session')
-def db_client():
-    """Create MongoDB connection for tests"""
-    client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
-    yield client
-    client.close()
-
-
-@pytest.fixture(scope='session')
-def test_db(db_client):
-    """Get test database"""
-    return db_client[cfg.MONGODB_DB]
-
-
-@pytest.fixture(autouse=True)
-def cleanup_test_data(test_db):
-    """Clean up test data before and after each test"""
-    yield
-    # Clean up after test
-    test_db['ausleihungen'].delete_many({})
-
-
-@pytest.fixture
-def sample_ausleihung_data():
-    """Fixture with sample borrowing data"""
-    now = datetime.datetime.now()
-    return {
-        'item_id': str(ObjectId()),
-        'user': 'test_user',
-        'start_date': now,
-        'end_date': now + datetime.timedelta(days=1),
-        'notes': 'Test borrowing',
-        'period': None
-    }
-
-
-# ============================================================================
-# Status Determination Tests
-# ============================================================================
-
-class TestGetCurrentStatus:
-    """Test status determination based on dates"""
-    
-    def test_planned_status_future_date(self):
-        """Test that future borrowing is marked as 'planned'"""
-        future_time = datetime.datetime.now() + datetime.timedelta(days=1)
-        ausleihung_doc = {
-            'Status': 'planned',
-            'Start': future_time,
-            'End': future_time + datetime.timedelta(hours=1)
-        }
-        status = ausleihung.get_current_status(ausleihung_doc)
-        assert status == 'planned'
-    
-    def test_active_status_during_borrowing(self):
-        """Test that current borrowing is marked as 'active'"""
-        now = datetime.datetime.now()
-        start = now - datetime.timedelta(hours=1)
-        end = now + datetime.timedelta(hours=1)
-        ausleihung_doc = {
-            'Status': 'active',
-            'Start': start,
-            'End': end
-        }
-        status = ausleihung.get_current_status(ausleihung_doc)
-        assert status == 'active'
-    
-    def test_completed_status_after_end_time(self):
-        """Test that past borrowing is marked as 'completed'"""
-        now = datetime.datetime.now()
-        start = now - datetime.timedelta(days=2)
-        end = now - datetime.timedelta(hours=1)
-        ausleihung_doc = {
-            'Status': 'active',
-            'Start': start,
-            'End': end
-        }
-        status = ausleihung.get_current_status(ausleihung_doc)
-        assert status == 'completed'
-    
-    def test_cancelled_status_remains_cancelled(self):
-        """Test that cancelled status is never changed"""
-        future_time = datetime.datetime.now() + datetime.timedelta(days=1)
-        ausleihung_doc = {
-            'Status': 'cancelled',
-            'Start': future_time,
-            'End': future_time + datetime.timedelta(hours=1)
-        }
-        status = ausleihung.get_current_status(ausleihung_doc)
-        assert status == 'cancelled'
-    
-    def test_active_with_no_end_time(self):
-        """Test that borrowing without end time stays active if started"""
-        now = datetime.datetime.now()
-        start = now - datetime.timedelta(hours=1)
-        ausleihung_doc = {
-            'Status': 'active',
-            'Start': start,
-            'End': None
-        }
-        status = ausleihung.get_current_status(ausleihung_doc)
-        assert status == 'active'
-
-
-# ============================================================================
-# Create and Update Tests
-# ============================================================================
-
-class TestCreateAusleihung:
-    """Test creating new borrowings"""
-    
-    def test_create_active_ausleihung(self, test_db):
-        """Test creating an immediately active borrowing"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        start = datetime.datetime.now()
-        end = start + datetime.timedelta(hours=2)
-        
-        result = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=start,
-            end_date=end,
-            notes='Test active',
-            status='active'
-        )
-        
-        assert result is not None
-        
-        # Verify in database
-        ausleihung_col = test_db['ausleihungen']
-        stored = ausleihung_col.find_one({'_id': result})
-        assert stored is not None
-        assert stored['Item'] == item_id  # Correct field name
-        assert stored['User'] == user
-        assert stored['Status'] == 'active'
-    
-    def test_create_planned_ausleihung(self, test_db):
-        """Test creating a future/planned borrowing"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        future_start = datetime.datetime.now() + datetime.timedelta(days=1)
-        future_end = future_start + datetime.timedelta(hours=2)
-        
-        result = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=future_start,
-            end_date=future_end,
-            notes='Test planned',
-            status='planned'
-        )
-        
-        assert result is not None
-        
-        ausleihung_col = test_db['ausleihungen']
-        stored = ausleihung_col.find_one({'_id': result})
-        assert stored['Status'] == 'planned'
-        # Check approximately equal (within 1 second for datetime precision)
-        assert abs((stored['Start'] - future_start).total_seconds()) < 1
-
-
-class TestUpdateAusleihung:
-    """Test updating existing borrowings"""
-    
-    def test_update_ausleihung_dates(self, test_db, sample_ausleihung_data):
-        """Test updating borrowing dates"""
-        # Create initial borrowing
-        ausleihung_id = ausleihung.add_ausleihung(**sample_ausleihung_data)
-        assert ausleihung_id is not None
-        
-        # Update dates
-        new_start = datetime.datetime.now() + datetime.timedelta(days=2)
-        new_end = new_start + datetime.timedelta(hours=1)
-        
-        ausleihung.update_ausleihung(
-            id=ausleihung_id,
-            start=new_start,
-            end=new_end
-        )
-        
-        # Verify update (within 1 second tolerance for datetime precision)
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert abs((stored['Start'] - new_start).total_seconds()) < 1
-        assert abs((stored['End'] - new_end).total_seconds()) < 1
-    
-    def test_update_ausleihung_status(self, test_db, sample_ausleihung_data):
-        """Test updating borrowing status"""
-        ausleihung_id = ausleihung.add_ausleihung(**sample_ausleihung_data)
-        
-        ausleihung.update_ausleihung(id=ausleihung_id, status='completed')
-        
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert stored['Status'] == 'completed'
-    
-    def test_update_ausleihung_notes(self, test_db, sample_ausleihung_data):
-        """Test updating borrowing notes"""
-        ausleihung_id = ausleihung.add_ausleihung(**sample_ausleihung_data)
-        new_notes = 'Updated notes'
-        
-        ausleihung.update_ausleihung(id=ausleihung_id, notes=new_notes)
-        
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert stored['Notes'] == new_notes
-
-
-# ============================================================================
-# Complete and Cancel Tests
-# ============================================================================
-
-class TestCompleteAusleihung:
-    """Test completing borrowings"""
-    
-    def test_complete_ausleihung(self, test_db, sample_ausleihung_data):
-        """Test marking a borrowing as completed"""
-        ausleihung_id = ausleihung.add_ausleihung(**sample_ausleihung_data)
-        
-        end_time = datetime.datetime.now()
-        ausleihung.complete_ausleihung(ausleihung_id, end_time=end_time)
-        
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert stored['Status'] == 'completed'
-        assert stored['End'] == end_time or stored['End'] is not None
-
-
-class TestCancelAusleihung:
-    """Test canceling borrowings"""
-    
-    def test_cancel_ausleihung(self, test_db, sample_ausleihung_data):
-        """Test canceling a borrowing"""
-        ausleihung_id = ausleihung.add_ausleihung(**sample_ausleihung_data)
-        
-        ausleihung.cancel_ausleihung(ausleihung_id)
-        
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert stored['Status'] == 'cancelled'
-
-
-# ============================================================================
-# Query Tests
-# ============================================================================
-
-class TestGetAusleihung:
-    """Test retrieving borrowings"""
-    
-    def test_get_ausleihung_by_id(self, test_db, sample_ausleihung_data):
-        """Test fetching a borrowing by ID"""
-        ausleihung_id = ausleihung.add_ausleihung(**sample_ausleihung_data)
-        
-        retrieved = ausleihung.get_ausleihung(ausleihung_id)
-        assert retrieved is not None
-        assert retrieved['_id'] == ausleihung_id
-        assert retrieved['User'] == sample_ausleihung_data['user']
-    
-    def test_get_ausleihung_by_user(self, test_db):
-        """Test retrieving all borrowings for a user"""
-        user = 'test_user_xyz'
-        item1 = str(ObjectId())
-        item2 = str(ObjectId())
-        now = datetime.datetime.now()
-        
-        # Create multiple borrowings for same user
-        ausleihung.add_ausleihung(
-            item_id=item1,
-            user=user,
-            start_date=now,
-            end_date=now + datetime.timedelta(hours=1),
-            status='active'
-        )
-        ausleihung.add_ausleihung(
-            item_id=item2,
-            user=user,
-            start_date=now + datetime.timedelta(days=1),
-            end_date=now + datetime.timedelta(days=1, hours=1),
-            status='planned'
-        )
-        
-        # Retrieve all for user
-        borrowings = ausleihung.get_ausleihung_by_user(user)
-        assert len(borrowings) >= 2
-        assert all(b['User'] == user for b in borrowings)
-    
-    def test_get_ausleihungen_by_status(self, test_db):
-        """Test retrieving borrowings by status"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        now = datetime.datetime.now()
-        
-        # Create active
-        active_id = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=now - datetime.timedelta(hours=1),
-            end_date=now + datetime.timedelta(hours=1),
-            status='active'
-        )
-        
-        # Get active borrowings
-        active_borrowings = ausleihung.get_active_ausleihungen()
-        assert any(b['_id'] == active_id for b in active_borrowings)
-
-
-# ============================================================================
-# Conflict Detection Tests
-# ============================================================================
-
-class TestConflictDetection:
-    """Test detecting overlapping/conflicting borrowings"""
-    
-    def test_no_conflict_different_items(self, test_db):
-        """Test that different items don't conflict"""
-        item1 = str(ObjectId())
-        item2 = str(ObjectId())
-        now = datetime.datetime.now()
-        start = now
-        end = now + datetime.timedelta(hours=1)
-        
-        # Create first borrowing
-        ausleihung.add_ausleihung(
-            item_id=item1,
-            user='user1',
-            start_date=start,
-            end_date=end,
-            status='active'
-        )
-        
-        # Check conflict on different item (should be no conflict)
-        conflict = ausleihung.check_ausleihung_conflict(
-            item_id=item2,
-            start_date=start,
-            end_date=end
-        )
-        assert conflict is False
-    
-    def test_conflict_same_item_overlapping(self, test_db):
-        """Test that overlapping borrowings on same item are detected"""
-        item_id = str(ObjectId())
-        now = datetime.datetime.now()
-        
-        # Create first borrowing
-        ausleihung.add_ausleihung(
-            item_id=item_id,
-            user='user1',
-            start_date=now,
-            end_date=now + datetime.timedelta(hours=2),
-            status='active'
-        )
-        
-        # Try to create overlapping borrowing
-        conflict = ausleihung.check_ausleihung_conflict(
-            item_id=item_id,
-            start_date=now + datetime.timedelta(minutes=30),
-            end_date=now + datetime.timedelta(hours=3)
-        )
-        assert conflict is True or conflict == item_id  # Depending on implementation
-    
-    def test_no_conflict_different_times(self, test_db):
-        """Test that non-overlapping borrowings don't conflict"""
-        item_id = str(ObjectId())
-        now = datetime.datetime.now()
-        
-        # Create first borrowing
-        ausleihung.add_ausleihung(
-            item_id=item_id,
-            user='user1',
-            start_date=now,
-            end_date=now + datetime.timedelta(hours=1),
-            status='active'
-        )
-        
-        # Check borrowing after first ends (should be no conflict)
-        conflict = ausleihung.check_ausleihung_conflict(
-            item_id=item_id,
-            start_date=now + datetime.timedelta(hours=2),
-            end_date=now + datetime.timedelta(hours=3)
-        )
-        assert conflict is False or conflict is None
-
-
-# ============================================================================
-# Period-based Borrowing Tests
-# ============================================================================
-
-class TestPeriodBookings:
-    """Test period-based borrowings (school periods)"""
-    
-    def test_create_period_booking(self, test_db):
-        """Test creating a borrowing for a specific school period"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        today = datetime.datetime.now().date()
-        
-        result = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=datetime.datetime.combine(today, datetime.time(8, 0)),
-            end_date=datetime.datetime.combine(today, datetime.time(9, 0)),
-            period=1,  # Assuming period 1 is first period
-            status='active'
-        )
-        
-        assert result is not None
-        stored = test_db['ausleihungen'].find_one({'_id': result})
-        assert stored.get('Period') == 1
-
-
-# ============================================================================
-# Remove Tests
-# ============================================================================
-
-class TestRemoveAusleihung:
-    """Test removing/deleting borrowings"""
-    
-    def test_remove_ausleihung(self, test_db, sample_ausleihung_data):
-        """Test deleting a borrowing record (soft delete)"""
-        ausleihung_id = ausleihung.add_ausleihung(**sample_ausleihung_data)
-        stored_before = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert stored_before is not None
-        
-        # Remove (soft delete - adds DeletedAt timestamp)
-        ausleihung.remove_ausleihung(ausleihung_id)
-        
-        # Verify it's marked as deleted (soft delete)
-        stored_after = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert stored_after is not None  # Still exists
-        assert 'DeletedAt' in stored_after or stored_after.get('Status') == 'deleted'
-
-
-# ============================================================================
-# Integration Tests
-# ============================================================================
-
-class TestAusleihungLifecycle:
-    """Test complete borrowing lifecycle"""
-    
-    def test_full_lifecycle_active_to_complete(self, test_db):
-        """Test a complete borrowing lifecycle: active → complete"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        now = datetime.datetime.now()
-        
-        # 1. Create active borrowing
-        ausleihung_id = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=now - datetime.timedelta(hours=1),
-            end_date=now + datetime.timedelta(hours=1),
-            status='active'
-        )
-        
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        status = ausleihung.get_current_status(stored)
-        assert status == 'active'
-        
-        # 2. Complete the borrowing
-        ausleihung.complete_ausleihung(ausleihung_id)
-        
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        status = ausleihung.get_current_status(stored)
-        assert status == 'completed'
-    
-    def test_full_lifecycle_planned_to_active_to_complete(self, test_db):
-        """Test complete lifecycle: planned → active → complete"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        now = datetime.datetime.now()
-        future = now + datetime.timedelta(hours=1)
-        
-        # 1. Create planned borrowing
-        ausleihung_id = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=future,
-            end_date=future + datetime.timedelta(hours=1),
-            status='planned'
-        )
-        
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert ausleihung.get_current_status(stored) == 'planned'
-        
-        # 2. Update to active (simulate time passing or manual activation)
-        ausleihung.update_ausleihung(id=ausleihung_id, status='active')
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert stored['Status'] == 'active'
-        
-        # 3. Complete
-        ausleihung.complete_ausleihung(ausleihung_id)
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert ausleihung.get_current_status(stored) == 'completed'
-    
-    def test_cancel_planned_borrowing(self, test_db):
-        """Test canceling a planned borrowing"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        future = datetime.datetime.now() + datetime.timedelta(days=1)
-        
-        # Create planned
-        ausleihung_id = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=future,
-            end_date=future + datetime.timedelta(hours=1),
-            status='planned'
-        )
-        
-        # Cancel
-        ausleihung.cancel_ausleihung(ausleihung_id)
-        
-        stored = test_db['ausleihungen'].find_one({'_id': ausleihung_id})
-        assert stored['Status'] == 'cancelled'
-
-
-# ============================================================================
-# Edge Cases
-# ============================================================================
-
-class TestEdgeCases:
-    """Test edge cases and boundary conditions"""
-    
-    def test_borrowing_with_same_start_and_end(self, test_db):
-        """Test borrowing where start equals end"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        now = datetime.datetime.now()
-        
-        result = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=now,
-            end_date=now,  # Same time
-            status='active'
-        )
-        
-        assert result is not None
-    
-    def test_borrowing_without_end_date(self, test_db):
-        """Test creating borrowing without end date"""
-        item_id = str(ObjectId())
-        user = 'test_user'
-        now = datetime.datetime.now()
-        
-        result = ausleihung.add_ausleihung(
-            item_id=item_id,
-            user=user,
-            start_date=now,
-            end_date=None,
-            status='active'
-        )
-        
-        assert result is not None
-        stored = test_db['ausleihungen'].find_one({'_id': result})
-        # End field should not exist or be None if not provided
-        assert 'End' not in stored or stored.get('End') is None
-    
-    def test_get_nonexistent_borrowing(self, test_db):
-        """Test retrieving a nonexistent borrowing"""
-        fake_id = ObjectId()
-        result = ausleihung.get_ausleihung(fake_id)
-        assert result is None or result == {} or result == []
-
-
-# ============================================================================
-# Run Tests
-# ============================================================================
-
-if __name__ == '__main__':
-    pytest.main([__file__, '-v', '--tb=short'])
diff --git a/test_terminplan.py b/test_terminplan.py
deleted file mode 100644
index 7201f9a..0000000
--- a/test_terminplan.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from Web.app import app
-with app.test_client() as client:
-    resp = client.get('/terminplan')
-    print(resp.status_code)
-    # print(resp.data.decode('utf-8')[:200])
diff --git a/update.sh b/update.sh
index 0f21b6c..bb6a7aa 100755
--- a/update.sh
+++ b/update.sh
@@ -18,6 +18,7 @@ DIST_DIR="$PROJECT_DIR/dist"
 COMPOSE_FILE="docker-compose-multitenant.yml"
 MIN_ROOT_FREE_MB="${INVENTAR_MIN_ROOT_FREE_MB:-2048}"
 DIST_KEEP_COUNT="${INVENTAR_DIST_KEEP_COUNT:-2}"
+MODE="release"
 
 mkdir -p "$LOG_DIR"
 chmod 777 "$LOG_DIR" 2>/dev/null || true
@@ -152,6 +153,7 @@ Usage: $0 [options]
 
 Options:
   --multitenant      Use docker-compose-multitenant.yml (default)
+    development        Install development build from GHCR or local dist
   -h, --help         Show this help message
 EOF
 }
@@ -163,6 +165,10 @@ parse_args() {
                 COMPOSE_FILE="docker-compose-multitenant.yml"
                 shift
                 ;;
+            development|dev)
+                MODE="development"
+                shift
+                ;;
             -h|--help)
                 usage
                 exit 0
@@ -480,6 +486,55 @@ main() {
     archive_logs
     create_backup
 
+    # If user requested a development install, perform a simple dev deploy flow
+    if [ "$MODE" = "development" ]; then
+        log_message "Requested development install"
+        local tag="development"
+        local app_image="$APP_IMAGE_REPO:$tag"
+        local compose_path="$PROJECT_DIR/$COMPOSE_FILE"
+
+        if [ ! -f "$compose_path" ]; then
+            log_message "ERROR: compose file not found: $compose_path"
+            exit 1
+        fi
+
+        # Ensure ENV_FILE contains the development image
+        if [ ! -f "$ENV_FILE" ]; then
+            cat > "$ENV_FILE" <<EOF
+NUITKA_BUILD=0
+INVENTAR_HTTP_PORT=10000
+INVENTAR_APP_IMAGE=$app_image
+EOF
+        elif grep -q '^INVENTAR_APP_IMAGE=' "$ENV_FILE"; then
+            sed -i "s|^INVENTAR_APP_IMAGE=.*|INVENTAR_APP_IMAGE=$app_image|" "$ENV_FILE"
+        else
+            printf '\nINVENTAR_APP_IMAGE=%s\n' "$app_image" >> "$ENV_FILE"
+        fi
+
+        # Try local dist first, then pull from GHCR
+        if ! load_local_dist_image "$tag"; then
+            log_message "Attempting to pull development image $app_image"
+            if ! docker pull "$app_image" >> "$LOG_FILE" 2>&1; then
+                log_message "ERROR: Could not obtain development image $app_image"
+                exit 1
+            fi
+        fi
+
+        # Bring up stack
+        docker compose -f "$compose_path" --env-file "$ENV_FILE" pull app mongodb >> "$LOG_FILE" 2>&1 || true
+        docker compose -f "$compose_path" --env-file "$ENV_FILE" up -d --remove-orphans >> "$LOG_FILE" 2>&1
+        docker tag "$app_image" "$APP_IMAGE_REPO:latest" >> "$LOG_FILE" 2>&1 || true
+
+        if ! verify_stack_health; then
+            log_message "ERROR: Development deployment failed health check"
+            exit 1
+        fi
+
+        echo "$tag" > "$STATE_FILE"
+        log_message "Development update completed successfully"
+        exit 0
+    fi
+
     local tmp_dir meta_file latest_tag current_tag bundle_url
     tmp_dir="$(mktemp -d)"
     meta_file="$tmp_dir/release.json"
diff --git a/verify_pdf_export_setup.py b/verify_pdf_export_setup.py
deleted file mode 100644
index 5a13838..0000000
--- a/verify_pdf_export_setup.py
+++ /dev/null
@@ -1,235 +0,0 @@
-#!/usr/bin/env python3
-"""
-Invario PDF Audit Export - Implementation Verification Script
-
-This script verifies that all components of the PDF audit export system
-are correctly installed and configured.
-"""
-
-import sys
-import os
-
-def verify_files():
-    """Verify all required files exist."""
-    print("=" * 60)
-    print("INVARIO PDF AUDIT EXPORT - INSTALLATION VERIFICATION")
-    print("=" * 60)
-    print()
-    
-    files_to_check = {
-        "Core Module": [
-            "Web/pdf_audit_export.py",
-        ],
-        "Flask Integration": [
-            "Web/app.py",  # Should contain new routes
-            "Web/templates/admin_audit.html",  # Should contain new buttons
-        ],
-        "Documentation": [
-            "PDF_AUDIT_EXPORT_DOCUMENTATION.md",
-            "PDF_IMPLEMENTATION_GUIDE.md",
-            "QUICK_START_PDF_EXPORT.md",
-        ]
-    }
-    
-    base_path = os.path.dirname(os.path.abspath(__file__))
-    all_ok = True
-    
-    for category, files in files_to_check.items():
-        print(f"\n[{category}]")
-        for filename in files:
-            filepath = os.path.join(base_path, filename)
-            exists = os.path.exists(filepath)
-            status = "✓" if exists else "✗"
-            print(f"  {status} {filename}")
-            if not exists:
-                all_ok = False
-    
-    return all_ok
-
-def verify_dependencies():
-    """Verify Python dependencies are installed."""
-    print("\n[Python Dependencies]")
-    
-    dependencies = [
-        ("reportlab", "PDF generation"),
-        ("qrcode", "QR code generation"),
-        ("pillow", "Image processing"),
-        ("flask", "Web framework"),
-        ("pymongo", "MongoDB driver"),
-    ]
-    
-    all_ok = True
-    for package, description in dependencies:
-        try:
-            __import__(package)
-            print(f"  ✓ {package:15} - {description}")
-        except ImportError:
-            print(f"  ✗ {package:15} - {description}")
-            all_ok = False
-    
-    return all_ok
-
-def verify_routes():
-    """Verify new routes are defined in app.py."""
-    print("\n[Flask Routes]")
-    
-    routes_to_check = [
-        "/admin/audit/export/pdf/quick",
-        "/admin/audit/export/pdf/official",
-    ]
-    
-    app_py_path = "Web/app.py"
-    if not os.path.exists(app_py_path):
-        print("  ✗ app.py not found")
-        return False
-    
-    with open(app_py_path, 'r') as f:
-        app_content = f.read()
-    
-    all_ok = True
-    for route in routes_to_check:
-        if route in app_content:
-            print(f"  ✓ {route}")
-        else:
-            print(f"  ✗ {route}")
-            all_ok = False
-    
-    return all_ok
-
-def verify_template():
-    """Verify template updates are in place."""
-    print("\n[HTML Template Updates]")
-    
-    template_path = "Web/templates/admin_audit.html"
-    if not os.path.exists(template_path):
-        print("  ✗ admin_audit.html not found")
-        return False
-    
-    with open(template_path, 'r') as f:
-        template_content = f.read()
-    
-    checks = {
-        "DIN 5008 Info Box": "DIN 5008",
-        "PDF Quick-Check Button": "admin_audit_export_pdf_quick",
-        "PDF Official Button": "admin_audit_export_pdf_official",
-    }
-    
-    all_ok = True
-    for check_name, check_string in checks.items():
-        if check_string in template_content:
-            print(f"  ✓ {check_name}")
-        else:
-            print(f"  ✗ {check_name}")
-            all_ok = False
-    
-    return all_ok
-
-def get_statistics():
-    """Get implementation statistics."""
-    print("\n[Implementation Statistics]")
-    
-    stats = {
-        "Web/pdf_audit_export.py": "PDF Export Module",
-        "PDF_AUDIT_EXPORT_DOCUMENTATION.md": "Technical Documentation",
-        "PDF_IMPLEMENTATION_GUIDE.md": "Implementation Guide",
-        "QUICK_START_PDF_EXPORT.md": "Quick Start Guide",
-    }
-    
-    total_lines = 0
-    for filename, description in stats.items():
-        if os.path.exists(filename):
-            with open(filename, 'r') as f:
-                lines = len(f.readlines())
-            print(f"  {filename:45} {lines:5} lines - {description}")
-            total_lines += lines
-    
-    print(f"\n  Total documentation: {total_lines} lines")
-
-def print_next_steps():
-    """Print next steps for the user."""
-    print("\n" + "=" * 60)
-    print("NEXT STEPS")
-    print("=" * 60)
-    print("""
-1. CONFIGURE SCHOOL INFO (Optional)
-   Edit config.json and add:
-   {
-     "school": {
-       "name": "Your School Name",
-       "address": "School Address",
-       "postal_code": "12345",
-       "city": "City Name",
-       "school_number": "123456",
-       "it_admin": "Admin Name"
-     }
-   }
-
-2. RESTART THE SYSTEM
-   ./start.sh
-   or: python Web/app.py
-
-3. TEST PDF EXPORTS
-   - Login to http://localhost:8000/admin/audit
-   - Click "🚀 Schnell-Check" for compact PDF
-   - Click "📋 Amtlicher Bericht" for full DIN 5008 report
-
-4. VERIFY COMPLIANCE
-   - Check PDF opens in your PDF reader
-   - Verify school info is correct
-   - Test signature fields
-   - Verify barrierefreiheit (accessibility)
-
-5. DEPLOY TO PRODUCTION
-   - Update your deployment scripts
-   - Document new export procedures
-   - Train staff on Quick-Check vs Official Report
-""")
-
-def main():
-    """Run all verifications."""
-    print()
-    
-    checks = [
-        ("File Structure", verify_files),
-        ("Dependencies", verify_dependencies),
-        ("Flask Routes", verify_routes),
-        ("HTML Template", verify_template),
-    ]
-    
-    all_passed = True
-    for name, check_func in checks:
-        try:
-            passed = check_func()
-            if not passed:
-                all_passed = False
-        except Exception as e:
-            print(f"\n✗ Error during {name} check: {e}")
-            all_passed = False
-    
-    # Get statistics
-    get_statistics()
-    
-    # Print results
-    print("\n" + "=" * 60)
-    if all_passed:
-        print("✓ ALL VERIFICATION CHECKS PASSED!")
-        print("=" * 60)
-        print_next_steps()
-    else:
-        print("✗ SOME VERIFICATION CHECKS FAILED")
-        print("=" * 60)
-        print("\nPlease check the errors above and verify:")
-        print("1. All files are in the correct locations")
-        print("2. All dependencies are installed")
-        print("3. app.py and admin_audit.html have been updated")
-        sys.exit(1)
-    
-    print("\n" + "=" * 60)
-    print("For detailed documentation, see:")
-    print("  - QUICK_START_PDF_EXPORT.md (Start here!)")
-    print("  - PDF_IMPLEMENTATION_GUIDE.md (Technical details)")
-    print("  - PDF_AUDIT_EXPORT_DOCUMENTATION.md (Requirements)")
-    print("=" * 60 + "\n")
-
-if __name__ == "__main__":
-    main()