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/ingest/parsers/index.ts

@@ -4,6 +4,7 @@ import { fandomParser } from "./fandom.ts";
 import { game8Parser } from "./game8.ts";
 import { holodoriWikiParser } from "./holodori.ts";
 import { iopWikiParser } from "./iopwiki.ts";
+import { stellaSoraWikiParser } from "./stellasora.ts";
 import { wikiGgParser } from "./wikigg.ts";
 import type { SourceParser } from "./types.ts";
 
@@ -20,6 +21,7 @@ export const PARSERS: SourceParser[] = [
   blueArchiveWikiParser,
   holodoriWikiParser,
   iopWikiParser,
+  stellaSoraWikiParser,
 ];
 
 export function parserById(id: string): SourceParser | undefined {
@@ -33,4 +35,5 @@ export { fandomParser } from "./fandom.ts";
 export { game8Parser } from "./game8.ts";
 export { holodoriWikiParser } from "./holodori.ts";
 export { iopWikiParser } from "./iopwiki.ts";
+export { stellaSoraWikiParser } from "./stellasora.ts";
 export { wikiGgParser } from "./wikigg.ts";