[plainprogrammer]

Summary

Closes #288 (the cause was found in #271, fixed by #272).

Spec 048 AC-1.8 said a five-character set code wraps the table row's phone line at 360px. That held only at a 345px content width (a 360px frame less a classic scrollbar). A real phone draws overlay scrollbars, has 360px of content, and fits that line with about 8px to spare; the example passed by about 7px. The CSS is right and does not change; the criterion and its example were wrong.

New spec 061 (supersedes spec 048 AC-1.8, recorded in both directions in the specs index; spec 048 is not edited) restates it, as the maintainer ruled (option a):

• AC-1.1 / AC-1.2: a no-location lot of PLST · PCY-132 · Etched · NM · EN (184px) wraps the phone line at 360px, no sideways scroll, no Location column, no place; the example asserts the unwrapped width exceeds room + scrollbar width by at least 20px, read from the frame, so it holds with classic or overlay scrollbars (margin 23.15px in both).
• AC-1.3: spec 048 AC-1.7 and its 360px and 390px examples stand, unchanged.
• AC-1.4: the example was also run once with overlay scrollbars (temporary, reverted edit of the pin): scrollbar 0, room 161, unwrapped 184.15, margin 23.15, passed; recorded in verification.md.
• Documents: the area doc's place line bullet, Sources and issues list; the specs index; a lesson.

No stylesheet, view, helper, model, controller, migration or export change, so no screenshots (the maintainer, 2026-11-10).

Reviews

• Spec: two read-only Opus rounds (round 1: 1 blocking, 2 major, 7 minor, all taken; round 2: APPROVE, 4 minor, taken).
• Plan: one read-only Opus round, APPROVE with fixes (1 major, 7 minor, all taken).
• Implementation review (sdd-review Mode B, Opus, read-only): SPEC-ALIGNED, 3 minor, all taken; recorded in docs/specs/061-place-line-wrap-at-phone-width/verification.md.

Test plan

• bin/rspec spec/system/collection_row_place_spec.rb: 18 examples, 0 failures (the red run on the old PMH3A line failed with margin -7.6: unwrapped 153.4, room 146, scrollbar 15)
• Overlay-scrollbar run recorded (AC-1.4)
• Pre-push bin/ci passed locally
• GitHub CI green

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