Implement boxes management module with auto-numbered box creation

- Add boxes_crates database table with BIGINT IDs and 8-digit auto-numbered box_numbers
- Implement boxes CRUD operations (add, edit, update, delete, delete_multiple)
- Create boxes route handlers with POST actions for all operations
- Add boxes.html template with 3-panel layout matching warehouse locations module
- Implement barcode generation and printing with JsBarcode and QZ Tray integration
- Add browser print fallback for when QZ Tray is not available
- Simplify create box form to single button with auto-generation
- Fix JavaScript null reference errors with proper element validation
- Convert tuple data to dictionaries for Jinja2 template compatibility
- Register boxes blueprint in Flask app initialization

app/modules/settings/routes.py

@@ -7,6 +7,8 @@ import hashlib
 import secrets
 from datetime import datetime, timedelta
 from app.database import get_db
+from app.modules.settings.stats import get_all_stats
+from app.modules.settings.logs import get_log_files, get_log_content, get_log_file_path, get_log_statistics, search_in_logs
 import subprocess
 import os
 import json
@@ -19,11 +21,30 @@ settings_bp = Blueprint('settings', __name__, url_prefix='/settings')
 
 @settings_bp.route('/', methods=['GET'])
 def settings_index():
-    """Settings module main page"""
+    """Settings module main page with app overview"""
     if 'user_id' not in session:
         return redirect(url_for('main.login'))
     
-    return render_template('modules/settings/index.html')
+    # Get all app statistics
+    try:
+        stats = get_all_stats()
+    except Exception as e:
+        logger.error(f"Error getting stats in settings_index: {e}", exc_info=True)
+        stats = {
+            'user_count': 0,
+            'database_size_mb': 0,
+            'logs_size_mb': 0,
+            'database_count': 0,
+            'backup_count': 0,
+            'printer_keys_count': 0,
+            'app_key_availability': {
+                'available': False,
+                'count': 0,
+                'status': 'Error loading data'
+            }
+        }
+    
+    return render_template('modules/settings/index.html', stats=stats)
 
 
 @settings_bp.route('/general', methods=['GET', 'POST'])
@@ -1254,3 +1275,100 @@ def toggle_backup_schedule(schedule_id):
     except Exception as e:
         return jsonify({'error': str(e)}), 500
 
+
+# ============================================================================
+# Log Explorer Routes
+# ============================================================================
+
+@settings_bp.route('/logs', methods=['GET'])
+def logs_explorer():
+    """Log explorer main page - list all log files"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    try:
+        log_files = get_log_files()
+        log_stats = get_log_statistics()
+        
+        return render_template('modules/settings/logs_explorer.html', 
+                             log_files=log_files,
+                             log_stats=log_stats)
+    except Exception as e:
+        logger.error(f"Error loading logs explorer: {e}")
+        flash(f"Error loading logs: {str(e)}", 'error')
+        return render_template('modules/settings/logs_explorer.html',
+                             log_files=[],
+                             log_stats={})
+
+
+@settings_bp.route('/logs/view/<filename>', methods=['GET'])
+def view_log(filename):
+    """View content of a specific log file"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    try:
+        lines = request.args.get('lines', default=100, type=int)
+        log_data = get_log_content(filename, lines=lines)
+        
+        if not log_data.get('success'):
+            flash(log_data.get('error', 'Error reading log file'), 'error')
+            return redirect(url_for('settings.logs_explorer'))
+        
+        return render_template('modules/settings/view_log.html', log_data=log_data)
+    except Exception as e:
+        logger.error(f"Error viewing log {filename}: {e}")
+        flash(f"Error viewing log: {str(e)}", 'error')
+        return redirect(url_for('settings.logs_explorer'))
+
+
+@settings_bp.route('/logs/download/<filename>', methods=['GET'])
+def download_log(filename):
+    """Download a log file"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    try:
+        filepath = get_log_file_path(filename)
+        
+        if not filepath:
+            flash('Invalid file or file not found', 'error')
+            return redirect(url_for('settings.logs_explorer'))
+        
+        return send_file(
+            filepath,
+            as_attachment=True,
+            download_name=f"{filename}_{datetime.now().strftime('%Y%m%d_%H%M%S')}"
+        )
+    except Exception as e:
+        logger.error(f"Error downloading log {filename}: {e}")
+        flash(f"Error downloading log: {str(e)}", 'error')
+        return redirect(url_for('settings.logs_explorer'))
+
+
+@settings_bp.route('/logs/search', methods=['GET'])
+def search_logs():
+    """Search for terms in log files"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    try:
+        search_term = request.args.get('q', '').strip()
+        filename = request.args.get('file', default=None)
+        
+        results = []
+        if search_term:
+            results = search_in_logs(search_term, filename=filename)
+        
+        log_files = get_log_files()
+        
+        return render_template('modules/settings/search_logs.html',
+                             search_term=search_term,
+                             results=results,
+                             log_files=log_files,
+                             selected_file=filename)
+    except Exception as e:
+        logger.error(f"Error searching logs: {e}")
+        flash(f"Error searching logs: {str(e)}", 'error')
+        return redirect(url_for('settings.logs_explorer'))
+