-- Add corner house (vinkelhus) fields to roof_geometry table
-- Task 21: Vinkelhus calculation support

ALTER TABLE roof_geometry 
ADD COLUMN IF NOT EXISTS is_corner_house BOOLEAN DEFAULT FALSE COMMENT 'Whether this is an L-shaped corner house (vinkelhus)',
ADD COLUMN IF NOT EXISTS wing2_width DECIMAL(10, 2) NULL COMMENT 'Second wing width in meters for corner house',
ADD COLUMN IF NOT EXISTS wing2_length DECIMAL(10, 2) NULL COMMENT 'Second wing length in meters for corner house';