fix(match): extend episode shift window and shift native episode countHEADmain

The shift was capped at 36h, which caught daily-cadence drift but not
weekly shows where AniList's nextAiringEpisode jumps a full week ahead
once an episode airs. Extends to 8 days so weekly schedules trigger it.

Also shifts nativeEpisode alongside episode so classify treats the
subtitled release as authoritative for aired-count when prefer-native
is off; previously the original AniList count survived and kept shows
in Due even though display correctly said the next sub release was
still upcoming.

2 files changed, 7 insertions, 3 deletions

diff --git a/src/lib/Media/Anime/Airing/Subtitled/match.ts b/src/lib/Media/Anime/Airing/Subtitled/match.ts
index 10f63aa5..b72be71d 100644
--- a/src/lib/Media/Anime/Airing/Subtitled/match.ts
+++ b/src/lib/Media/Anime/Airing/Subtitled/match.ts
@@ -100,7 +100,7 @@ const FALLBACK_MIN_MARGIN = 0.08;
 const MAX_MATCH_CACHE_ENTRIES = 10_000;
 const MAX_INJECT_CACHE_ENTRIES = 10_000;
 const STALE_AIRING_GRACE_SECONDS = 5 * 60;
-const MAX_EPISODE_SHIFT_WINDOW_SECONDS = 36 * 60 * 60;
+const MAX_EPISODE_SHIFT_WINDOW_SECONDS = 8 * 24 * 60 * 60;
 
 interface SimilarityAnalysis {
 	score: number;
@@ -585,6 +585,7 @@ export const injectAiringTime = (
 	let untilAiring: number | undefined;
 	let time = new Date(airingAt ? airingAt * 1000 : 0);
 	let nextEpisode = anime.nextAiringEpisode?.episode || 0;
+	let nativeEpisode = nextEpisode;
 
 	if (!(displayNativeCountdown || !subsPlease)) {
 		const scheduleIndex = getScheduleIndex(subsPlease);
@@ -614,6 +615,7 @@ export const injectAiringTime = (
 		nativeTime.getTime() / 1000 > nowEpochSeconds + STALE_AIRING_GRACE_SECONDS
 	) {
 		nextEpisode -= 1;
+		nativeEpisode = nextEpisode;
 	}
 
 	if (nativeTime.getTime() - now.getTime() > SEVEN_DAYS) {
@@ -631,7 +633,7 @@ export const injectAiringTime = (
 			episode: nextEpisode,
 			airingAt: time.getTime() / 1000,
 			nativeAiringAt: nativeTime.getTime() / 1000,
-			nativeEpisode: anime.nextAiringEpisode?.episode || 0,
+			nativeEpisode,
 		},
 	} as Media;
 
diff --git a/src/lib/Media/Anime/Airing/classify.test.ts b/src/lib/Media/Anime/Airing/classify.test.ts
index b05be83b..2b40d7df 100644
--- a/src/lib/Media/Anime/Airing/classify.test.ts
+++ b/src/lib/Media/Anime/Airing/classify.test.ts
@@ -146,6 +146,8 @@ describe("native countdown toggle parity", () => {
 				airingAt: nativeAiringAt,
 			};
 
+			if (media.mediaListEntry) media.mediaListEntry.progress = 5;
+
 			settings.setKey("displayNativeCountdown", true);
 
 			const nativeOnly = injectAiringTime(media, subsPlease);
@@ -242,7 +244,7 @@ describe("injectAiringTime cache safety", () => {
 			...media,
 			mediaListEntry: {
 				...(media.mediaListEntry || {}),
-				progress: 8,
+				progress: 7,
 			},
 		} as Media;
 		const cachedCaughtUp = injectAiringTime(caughtUp, subsPlease);