Changes touching this path

• review sweep 15 fix-up: the evolog dash is on an empty FIRST LINE, the subject rule now has one home, and the surface prune says plainly that it discards. loot evolog --porcelain dashes its last column when the message first line is empty, which an empty message and a message whose body starts under a blank one both are, and three places said an empty message: the doc above the encoder, the ADR 0023 amendment of 2026-09-17 and CONTEXT.md. The wording moved rather than the bytes, because dashing on an empty message instead is a porcelain byte change for a message that opens with a newline, and a new spawned pin, a_message_whose_first_line_is_empty_is_the_dash_too, puts a run under the sentence: the file reads 5 passed, and with the whole message put back in the column it is 2 passed, 3 failed, the single-line control among the two that stay green. render::subject_line was billed as the one home while six call sites derived that first line inline, the four the ticket named plus the shortlog author rollup and the missing-object listing, so log --oneline, heads, show, range-diff and those two all ask it now, and the near-cousins that each do something more, the note ellipsis, the revert subject and the loot-first PR title, are named beside it rather than routed. The control is the spawned binary: 28 outputs over two repos, one carrying a multi-line message and one a blank first line, are byte-identical before and after, and with subject_line returning the whole message 10 of 11 of them move and the loot-cli lib suite reads 1219 passed, 4 failed, naming the shortlog rollup and the oneline row among them. The surface stale-debt prune keeps the removal error it discards, which #2018 declined and its closing note then reported as fixed, and the doc above it now says the let _ is deliberate, that apply_change_delta propagates where this one does not, and why: the delta writer snapshots, so a refused removal would be recorded as a deletion the disk never took. The removal census in workspace.rs states what its matcher is blind to, a type-annotated binding, a call split over lines and a path derived from a root-joined one, and names disk_entry::drop_empty_parents, whose remove_dir climbs from a dest its caller joined and which the fold cannot reach, because remove_dir takes an empty directory only and a directory holding a file the writer just wrote is not empty; widening the matcher would not have reached that call, so the blindness is stated instead. CONTEXT.md gives that census its crate and spelling scope. migration_serial records that hold blocks and is not re-entrant, and that it serialises migration runs rather than pg_authid, naming the fixed-name CREATE ROLE in tests/rls.rs that writes the shared catalog outside it; Held loses its Option and its Drop impl, since dropping the field is what the compiler already does. The migration census compares a BTreeSet the way the removal census does: with the const reordered it stays green where the Vec compare it replaced goes red (0 passed, 1 failed), and a name dropped from the const reddens it (0 passed, 1 failed). pg/tests.rs cross-references its own source walk and fn finder to source_walk in loot-cli and states where the pair differs. The folds_case helpers in two test files become folds_case_under, so neither shadows the disk_entry rule it asks. The rewrap leftover in account.tsx that #2018 moved rather than fixed is rewrapped with its neighbours, and so is a second one mid-paragraph in CONTEXT.md that the same rewrap reached. The forge suite is green against a throwaway 17.0 cluster (469 passed over nine binaries, no skip note) and its lock case goes red with the session dropped rather than held (0 passed, 1 failed), the site gate is green (643 passed, every surface under its ceiling), and the workspace suite is green (3833 passed) (#2023) c38e3299 · dbf3dbe6…

Renames are not followed. loot's tree maps a path to an address, so a rename is a delete and an add. This list is the history of the name, not of the bytes.