feat: add WebUI support for custom YAML playbook uploads

[barnabasbusa]

Summary

• Add new file upload functionality to the WebUI test registration modal
• Introduce /api/v1/tests/register_upload API endpoint for multipart form uploads
• Maintain backward compatibility with existing URL-based registration

Changes Made

• Backend: New API endpoint /api/v1/tests/register_upload that accepts multipart form data
• Frontend: Enhanced register test modal with radio button toggle between URL and file upload methods
• UI/UX: Added form guidance text and proper file input validation
• Validation: Comprehensive YAML parsing and file size limits (10MB max)

Features

1. Dual Registration Methods: Users can choose between URL-based or file upload registration
2. Custom Overrides: Support for custom test names and configuration overrides
3. File Metadata: Uploaded file information is preserved in test configuration
4. Error Handling: Proper validation and user-friendly error messages
5. File Type Filtering: Only accepts .yaml and .yml files

UI Changes

The register test modal now includes:

• Radio button toggle for "From URL" vs "Upload File"
• File input with .yaml/.yml file type restrictions
• Enhanced form guidance text
• Dynamic field visibility based on selected method

API Changes

• New endpoint: POST /api/v1/tests/register_upload
• Content-Type: multipart/form-data
• Parameters:
  • playbook (file): YAML test configuration file
  • name (optional): Custom test name override
  • config (optional): YAML configuration overrides
  • configVars (optional): YAML configuration variables

Test plan

• Build successfully compiles
• WebUI loads with new upload interface
• File upload validation works
• API endpoint handles multipart form data
• Test registration via upload functions
• Backward compatibility with URL method maintained
• Error handling works correctly

Example

Included cgc-test.yaml demonstrates the new upload functionality for CGC validation testing.

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