data integrity check: committee reports and bills

[clkao]

we should produce a list of reports and bills that we don't have proposed amendment extracted.

we can simply do a query (or corresponding api.ly query):

ly=# select bill_id from bills where summary like '報告%' and bill_ref is not null

all items should contain data field with lawdiff content

ditto for bills.

[clkao]

select * from (select bill_id, data ~> '@content.length' as diff from bills
    where summary like '報告%' and summary  !~* '總預算案' and bill_ref is not null) z where diff::text = '0';