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fix: Replace Prawn with Grover for PDF ticket generation

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- Replace Prawn PDF generation with Grover (Chrome headless) for better compatibility
- Add HTML-based ticket template with embedded CSS styling
- Implement robust Grover loading with fallback to HTML download
- Add QR code generation methods to Ticket model
- Remove legacy TicketPdfGenerator service and tests
- Update PDF generation in TicketsController with proper error handling

The new implementation provides:
- Better HTML/CSS rendering for ticket layouts
- More reliable PDF generation using Chrome engine
- Fallback mechanism for better user experience
- Cleaner separation of template rendering and PDF conversion

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

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
kbe
2025-09-06 00:04:02 +02:00
parent 974edce238
commit 7ef934d8a8
10 changed files with 372 additions and 425 deletions
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11
app/views/layouts/pdf.html.erb Normal file
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@@ -0,0 +1,11 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title><%= yield :title %></title>
<%= stylesheet_link_tag "pdf" %>
</head>
<body>
<%= yield %>
</body>
</html>