The theme pinning is the esports bands' own, and says so

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Part of #973. Spec: .agents/RENAME_SPEC.md, Part B3. Read that section before touching this: it is the one ticket in the epic that is not purely mechanical.

services/frontend/src/styles/island.css pins the dark treatment inside a swipeable band via .island .season-swipe. That class is added by domains/esports/island/SeasonSwipe.vue, a thin esports wrapper around the shared BandSwipe.vue, whose own class is band-swipe.

So Esports.vue and EsportsGamePage.vue render <season-swipe> and do receive the pinning. pages/Board.vue renders <band-swipe> directly and does not. The board band follows the viewer's theme in the light half while the esports band is pinned dark.

Scope for this ticket, as decided: rename only, and report. Point the rule at .island .band-swipe so the selector is live and describes the shared component. Drop SeasonSwipe.vue's now-unread class="season-swipe", and its testid only if nothing in tests/e2e or tests/system asserts on it.

Then shoot the light scene from services/frontend/zz-look.mjs before and after and attach both. Do not decide whether the board band should be pinned dark. That is a styling call for a human, and this ticket surfaces it rather than settling it. If the shots show the pinning now reaching the board band and changing it, say so plainly in the PR comment.

Its own commit, per the spec.

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Scope settled after the shots came back.

Pointing the rule at the shared .band-swipe extended the pinning to the board band and made its light theme illegible: ink flips to chalk while the grounds do not follow, so the eyebrow, the board name and the description all go near-white on the pale wash. Rename-only was the one option the evidence ruled out.

Decision: the pinning stays esports-only, and the selector says so. The wrapper class is renamed to something that states the narrower scope deliberately, rather than looking like a stale name that failed to follow a rename. SeasonSwipe.vue applies it, island.css targets it, and the comment records that a page rendering BandSwipe directly follows the viewer's theme. Visually a no-op in both themes, which the amended commit verifies.

The underlying defect is that --band-ground (island.css:206) and --accent-ink (pages/Board.vue) are declared above the band and so are substituted against the unpinned values. That is live on the esports pages today. Filed as #984 with the evidence, out of scope for this epic.