ALTER TABLE domains ADD COLUMN project_id TEXT NOT NULL DEFAULT 'default';
ALTER TABLE domains ADD COLUMN owner_id TEXT NOT NULL DEFAULT '';
ALTER TABLE domains ADD COLUMN created_by TEXT NOT NULL DEFAULT '';
ALTER TABLE domains ADD COLUMN updated_by TEXT NOT NULL DEFAULT '';
ALTER TABLE servers ADD COLUMN project_id TEXT NOT NULL DEFAULT 'default';
ALTER TABLE servers ADD COLUMN owner_id TEXT NOT NULL DEFAULT '';
ALTER TABLE servers ADD COLUMN created_by TEXT NOT NULL DEFAULT '';
ALTER TABLE servers ADD COLUMN updated_by TEXT NOT NULL DEFAULT '';
ALTER TABLE domain_servers ADD COLUMN project_id TEXT NOT NULL DEFAULT 'default';
CREATE UNIQUE INDEX idx_domains_project_id ON domains(project_id, id);
CREATE UNIQUE INDEX idx_servers_project_id ON servers(project_id, id);
CREATE INDEX idx_domain_servers_project ON domain_servers(project_id);