Major improvements: Fix download limits, enhance license display, fix software filenames

🔧 Bug Fixes:
- Fixed download limits defaulting to 5 instead of 0 for unlimited downloads
- Fixed software license filename sanitization (spaces→dashes, dots→underscores, proper .zip extension)
- Software downloads now show as "Test-Plugin-v2-2-0.zip" instead of "Test Plugin v2.2.0"

✨ UI/UX Enhancements:
- Redesigned license key display to span full table width with FontAwesome copy icons
- Added responsive CSS styling for license key rows
- Integrated FontAwesome CDN for modern copy icons

🏗️ Architecture Improvements:
- Added comprehensive filename sanitization in both download handler and API paths
- Enhanced software license product handling for local package files
- Improved error handling and logging throughout download processes

📦 Infrastructure:
- Added Gitea workflows for automated releases on push to main
- Created comprehensive .gitignore excluding test files and browser automation
- Updated documentation with all recent improvements and technical insights

🔍 Technical Details:
- Software license products served from wp-content/uploads/wpdd-packages/
- Download flow: token → process_download_by_token() → process_download() → deliver_file()
- Dual path coverage for both API downloads and regular file delivery
- Version placeholder system for automated deployment

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

assets/js/admin-payouts.js

@@ -1,4 +1,39 @@
 jQuery(document).ready(function($) {
+    // Format currency
+    function formatCurrency(amount) {
+        return '$' + parseFloat(amount).toFixed(2);
+    }
+    
+    // Handle creator selection for manual payout
+    $('#creator_id').on('change', function() {
+        var selectedOption = $(this).find('option:selected');
+        var balance = selectedOption.data('balance');
+        var balanceDisplay = $('#creator_balance_display');
+        var balanceAmount = $('#creator_balance_amount');
+        
+        if ($(this).val() && balance !== undefined) {
+            balanceAmount.text(formatCurrency(balance));
+            balanceDisplay.show();
+        } else {
+            balanceDisplay.hide();
+        }
+    });
+    
+    // Handle creator selection for balance adjustment
+    $('#adj_creator_id').on('change', function() {
+        var selectedOption = $(this).find('option:selected');
+        var balance = selectedOption.data('balance');
+        var balanceDisplay = $('#adj_creator_balance_display');
+        var balanceAmount = $('#adj_creator_balance_amount');
+        
+        if ($(this).val() && balance !== undefined) {
+            balanceAmount.text(formatCurrency(balance));
+            balanceDisplay.show();
+        } else {
+            balanceDisplay.hide();
+        }
+    });
+    
     // Handle individual payout processing
     $('.wpdd-process-payout').on('click', function(e) {
         e.preventDefault();