- Add engine.initialize() call in test endpoint to fix "Engine not initialized" error for MSS and DXcam
- Create template.py with CaptureTemplate dataclass for template data model
- Create template_store.py with TemplateStore class for template CRUD operations
- TemplateStore loads from capture_templates.json and provides get_all, create, get, update, delete methods
Fixes MSS capture test failing with "Engine not initialized" error. WGC worked because it auto-initializes in capture_display(), but MSS and DXcam require explicit initialization.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
alexei.dolgolyov
fdb73c9fc9