🚀 Major improvements: Fix short URLs, separate public/admin views, and enhance UX

✅ Fixed Critical Issues:
- Fixed dynamic QR code short URL redirect functionality
- Resolved data consistency issues with multiple LinkPageManager instances
- Fixed worker concurrency problems in Gunicorn configuration

🎨 UI/UX Enhancements:
- Separated public page from admin statistics view
- Created clean public_page.html for QR code users (no admin info)
- Added comprehensive statistics_page.html for admin analytics
- Enhanced dashboard with separate 'Manage' and 'Stats' buttons
- Improved navigation flow throughout the application

🔧 Technical Improvements:
- Added URLShortener instance reloading for data consistency
- Reduced Gunicorn workers to 1 to prevent file conflicts
- Increased timeout to 60s for better performance
- Enhanced debug logging for troubleshooting
- Added proper error handling and 404 responses

📁 New Files:
- app/templates/public_page.html - Clean public interface
- app/templates/statistics_page.html - Admin analytics dashboard

�� Modified Files:
- app/routes/main.py - Added /stats route, improved short URL handling
- app/templates/edit_links.html - Added Statistics button
- app/templates/index.html - Added Stats button for QR codes
- app/utils/link_manager.py - Enhanced data reloading
- app/utils/url_shortener.py - Added debug logging
- gunicorn.conf.py - Optimized worker configuration

This update provides a professional separation between public content and admin functionality while ensuring reliable short URL operation.

app/routes/api.py

@@ -216,26 +216,34 @@ def upload_logo():
 def create_link_page():
     """Create a new dynamic link page and QR code"""
     try:
+        print("DEBUG: Starting create_link_page")
         data = request.json
         title = data.get('title', 'My Links')
         description = data.get('description', 'Collection of useful links')
+        print(f"DEBUG: Creating link page with title='{title}', description='{description}'")
         
         # Create the link page
         page_id = link_manager.create_link_page(title, description)
+        print(f"DEBUG: Created link page with ID: {page_id}")
         
         # Create the original page URL
         original_page_url = f"{request.url_root}links/{page_id}"
+        print(f"DEBUG: Original page URL: {original_page_url}")
         
         # Automatically create a short URL for the link page
+        print(f"DEBUG: Creating short URL for: {original_page_url}")
         short_result = link_manager.create_standalone_short_url(
             original_page_url, 
             title=f"Link Page: {title}",
             custom_code=None
         )
+        print(f"DEBUG: Short URL result: {short_result}")
         short_page_url = short_result['short_url']
         
         # Store the short URL info with the page
+        print(f"DEBUG: Setting page short URL: {short_page_url}, code: {short_result['short_code']}")
         link_manager.set_page_short_url(page_id, short_page_url, short_result['short_code'])
+        print(f"DEBUG: Page short URL set successfully")
         
         settings = {
             'size': data.get('size', 10),
@@ -281,7 +289,10 @@ def create_link_page():
 def add_link_to_page(page_id):
     """Add a link to a page"""
     try:
+        print(f"DEBUG: Adding link to page {page_id}")
         data = request.json
+        print(f"DEBUG: Request data: {data}")
+        
         title = data.get('title', '')
         url = data.get('url', '')
         description = data.get('description', '')
@@ -289,8 +300,10 @@ def add_link_to_page(page_id):
         custom_short_code = data.get('custom_short_code', None)
         
         if not title or not url:
+            print("DEBUG: Missing title or URL")
             return jsonify({'error': 'Title and URL are required'}), 400
         
+        print(f"DEBUG: Calling link_manager.add_link with shortener={enable_shortener}")
         success = link_manager.add_link(
             page_id, title, url, description, 
             enable_shortener=enable_shortener, 
@@ -298,11 +311,14 @@ def add_link_to_page(page_id):
         )
         
         if success:
+            print("DEBUG: Link added successfully")
             return jsonify({'success': True})
         else:
+            print(f"DEBUG: Failed to add link - page {page_id} not found")
             return jsonify({'error': 'Page not found'}), 404
             
     except Exception as e:
+        print(f"DEBUG: Exception in add_link_to_page: {e}")
         return jsonify({'error': str(e)}), 500
 
 @bp.route('/link_pages/<page_id>/links/<link_id>', methods=['PUT'])