max / quasi

Close the collapse: one row type, one grammar, no alias Wave 3. `pub type Cells = Row` is gone, and deleting it was not the rename it looked like. `declare!` read the shape's return type as a token to pick the body form -- `-> Cells` for `cells { .. }`, `-> Row` for `row ".." { .. }` -- and emitted it verbatim into the generated signature. So the alias was load-bearing and the grammar had two spellings for one type. The return type was also redundant: the body already says which form it is, and the token had to agree with it, so a table row spelled `-> Row` was an error about the return type when nothing was wrong with it. One arm now takes both bodies, every shape returns `Row`, and the 16 `-> Cells` sites across the three app trees moved with it. `Of::TableRows` went the same way. It and `Of::Rows` named the same element type, so the enum that states "the element type is fixed by the container" was being read as a distinction it had stopped making. The rest is prose that argued from two containers: members documented as "on the other container", counterparts with nothing to be a counterpart to, and link definitions pointing through the alias. Three `Cells` survive and mean three different things: `Emission::Cells`, the `cells { .. }` body; `Of::Cells`, a row's cells; `Want::Cells`, terminal character cells. `Part` is gone entirely. Also four clippy findings that predate this work and were failing `--all-targets -D warnings` in quasi: a single-variant wildcard, a needless `for_each`, a missing `#[must_use]`, and a `HashMap` impl not generic over its hasher. The fourth was only reachable once the first two stopped the build. 27 test blocks green, clippy clean with -D warnings.