Publish Honkai Impact 3rd events from arustats.com

Sixteen events, from a page whose URL never needs editing: /en-us/hi3/timeline
answers 307 to the live version, so the site names its own current version
server-side and the runner follows it. That is the stable route the
marisaimpact.com page was declined for lacking, and pinning a version here
would publish a finished schedule as current the day the game moves on — a
test asserts the registered URL carries no version.

The boundaries are estimated week-bucket edges rather than announced dates,
which is the objection marisaimpact.com was declined on and is taken here
deliberately: the game had no source at all, and approximate six-week windows
were judged better than an empty lane. Confidence records it in the data.

Verified against the live page rather than only against the expected file:
all sixteen rendered grid-column spans agree with the JSON, which independently
confirms the week mapping and that endWeek is exclusive, and sixteen bars on
the page yield sixteen events with nothing silently dropped. The two 7-Day
Login events get their own test, since collapsing them into one ID is the
failure this parser is most likely to regress into.

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

test/adapters/game8.test.ts

@@ -51,6 +51,10 @@ const CASES: Array<{ adapter: Adapter; fixture: string }> = [
   { adapter: adapter("uma-game8-events"), fixture: "fixtures/uma/game8-events-2026-08-19" },
   { adapter: adapter("nikke-fandom-events"), fixture: "fixtures/nikke/fandom-events-2026-08-19" },
   { adapter: adapter("nikki-fandom-events"), fixture: "fixtures/nikki/fandom-events-2026-08-19" },
+  // Honkai Impact 3rd. Every boundary in this expected file is a week-bucket
+  // edge the source labels `ESTIMATED WEEK`, not an announced date — see
+  // src/ingest/parsers/arustats.ts and docs/SOURCES.md § 14.
+  { adapter: adapter("hi3-arustats-events"), fixture: "fixtures/hi3/arustats-events-2026-08-27" },
 ];
 
 async function runAdapter(adapter: Adapter, fixture: string) {