CREATE TABLE ocr_jobs (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    resource_id UUID NOT NULL REFERENCES resources(id) ON DELETE CASCADE,
    file_path TEXT NOT NULL DEFAULT '',
    status TEXT NOT NULL DEFAULT 'pending' CHECK (status IN ('pending', 'processing', 'done', 'failed')),
    error_message TEXT NOT NULL DEFAULT '',
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE INDEX idx_ocr_jobs_status ON ocr_jobs(status);
CREATE INDEX idx_ocr_jobs_resource ON ocr_jobs(resource_id);