Saved layouts

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API quick reference

Clone any layout by id (duplicates the whole design into a new layout):
POST /api/layouts/<layout_id>/clone/ — optional body {"name": "..."}

Generate a PDF for any saved layout:
POST /api/layouts/<layout_id>/generate-pdf/ with body {"invoice": {"MAST": {...}, "TRAN": [...]}}

Or generate from an inline layout (no saved layout needed):
POST /api/generate-pdf/ with body {"layout": {...}, "invoice": {...}} or {"layout_id": "...", "invoice": {...}}