feat: add Stella Sora, from the wiki's front page rather than its banner list

This wiki publishes the same schedule twice and the fuller surface is the worse
one. /wiki/Banner_List has 55 clean rows with full wall clocks and states no
timezone anywhere on the page; the front page's Current Banners module emits
the same instants as real <time datetime="...-07:00"> elements. The two agree
exactly, which is strong evidence the list is UTC and is still only evidence —
so we read the surface that says what it means and pay four live banners
instead of a full history for it. If an editor ever states the zone on
Banner_List, that page becomes the better source immediately.

Two ways this could have failed silently. The template writes its BEM
underscores as &#95;&#95;, so a selector written against the class name a
browser shows matches nothing at all; and banner names are red links to
?action=edit&redlink=1, which Miraheze's robots.txt disallows, so a href
carrying a query is refused and the page URL stands in.

No resetOffsets, and here the source did state an offset: -07:00, which is US
Pacific and therefore shifts twice a year. That is the Fate/Grand Order gap
arriving through a page that looks like it answered the question.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

src/shared/games.ts

@@ -123,6 +123,15 @@ export const GAMES: Record<GameId, GameMeta> = {
   // is a patch window, not a reset hour. So this game takes the regional
   // default until something states its server clock outright.
   gfl2: { id: "gfl2", name: "Girls' Frontline 2: Exilium", short: "GFL2", hue: "#A9C23F", studio: "Sunborn", dailyTasks: "Daily missions" },
+  // No `resetOffsets`, and this is the Fate/Grand Order gap rather than the
+  // Blue Archive one: the source states an offset on every boundary, and the
+  // offset it states is `-07:00` in August. That is US Pacific in summer, which
+  // means it is `-08:00` in winter — one fixed number is wrong for half the year
+  // in either direction, and `resetOffsets` holds one fixed number. The page
+  // also never lands its boundaries on a single local hour (20:00 and 21:00
+  // starts, 12:59 and 19:59 ends), so there is no reset hour to read off it
+  // either. See the fgo entry below for the same reasoning at more length.
+  stellasora: { id: "stellasora", name: "Stella Sora", short: "Stella Sora", hue: "#2E9E9E", studio: "Yostar", dailyTasks: "Daily missions" },
 };
 
 export const GAME_LIST: GameMeta[] = Object.values(GAMES);