The reader keeps a foreign marker line verbatim inside an item where the reference reads text; 210 continuation-join confluence pairs read differently on their two sides

What this is

The 210 listContinuationJoin pairs in tests/conformance/confluence-exceptions.ts (63 both-identity, 21 left-identity, 126 both-rewritten) each pair two spellings that our reader reads DIFFERENTLY: one side holds a marker-shaped line the reader keeps verbatim (the verbatim-marker arm in the item scan), the other does not (measured Sep 7 by the #306 lane, confirmed by its review of record on a ten-pair sample of each kind). Under the owner's reading-stability ruling the formatter is right to keep them apart, so no packer mechanism can clear them; the pairs clear only if the reading itself is wrong on one side.

The change

For each of the three kinds, check the reader's verdict on the verbatim-marker side against both programs (parser.rb l.36: a paragraph swallows a following marker-shaped line; the item scan's rule differs). Where our reader diverges, fix the reader (a reader divergence issue per mechanism); where it agrees, the pair is a declared reading difference and leaves the confluence table as a non-goal with the reason at the row.

Related

#195, #306, #313, #57.

Start with tests/conformance/confluence-exceptions.ts and inspect the 210 listContinuationJoin pairs by kind. Compare the verbatim-marker behavior in the item scan with parser.rb line 36, then run the relevant conformance tests. Done means each pair is either corrected through a reader fix or retained with its declared reading-difference reason.