Constant CREATE_ACLS_TABLE 

pub const CREATE_ACLS_TABLE: &str = "
CREATE TABLE IF NOT EXISTS acls (
    id VARCHAR PRIMARY KEY,
    memory_id VARCHAR NOT NULL,
    principal_type VARCHAR NOT NULL,
    principal_id VARCHAR NOT NULL,
    permission VARCHAR NOT NULL,
    granted_by VARCHAR NOT NULL,
    created_at VARCHAR NOT NULL,
    expires_at VARCHAR
);
CREATE INDEX IF NOT EXISTS idx_acls_memory_id ON acls(memory_id);
CREATE INDEX IF NOT EXISTS idx_acls_principal ON acls(principal_type, principal_id);
";