feat(player): skipping an episode marks it watched, not paused

Skipping to the next episode left a mid-episode resume point behind, so
the skipped episode reappeared in Continue Watching with a partial
progress bar. Skipping means "done with this one", not "stopped here".

- reportSkippedEpisode marks the outgoing episode played instead of
  reporting a stop position, and arms a one-shot suppression consumed by
  the player's stop handler, so VideoPlayer's post-navigation unmount
  stop report can't overwrite the 100% progress with the partial one.
- Continue Watching drops resume entries superseded by Next Up: an
  in-progress episode whose series has a next-up entry strictly later in
  series order (season, then episode) is hidden from the Home and TV
  rows. Movies, series without a next-up entry, and items with unknown
  or mixed ordering are always kept.

Adds UR-059, DR-088, DR-089.

TRACES: UR-059 | DR-088, DR-089

src/lib/stores/home.ts

@@ -1,8 +1,9 @@
 // Home screen data store - featured items, continue watching, recently added
-// TRACES: UR-023, UR-024, UR-034 | DR-026, DR-027, DR-038, DR-039
+// TRACES: UR-023, UR-024, UR-034, UR-059 | DR-026, DR-027, DR-038, DR-039, DR-089
 import { writable, derived } from "svelte/store";
 import type { MediaItem } from "$lib/api/types";
 import { auth } from "./auth";
+import { filterSupersededResumeItems } from "./continueWatchingFilter";
 
 interface HomeState {
   heroItems: MediaItem[];
@@ -50,8 +51,12 @@ function createHomeStore() {
       const valueOr = <T>(i: number, fallback: T): T =>
         settled[i].status === "fulfilled" ? (settled[i] as PromiseFulfilledResult<T>).value : fallback;
 
-      const resume = valueOr(0, [] as typeof initialState.resumeItems);
+      const rawResume = valueOr(0, [] as typeof initialState.resumeItems);
       const nextUp = valueOr(1, [] as typeof initialState.nextUpItems);
+      // Drop episodes the user has already moved past (their series' Next Up
+      // points further ahead) so Continue Watching isn't cluttered with stale
+      // partial positions left behind by skipping.
+      const resume = filterSupersededResumeItems(rawResume, nextUp);
       const latest = valueOr(2, [] as typeof initialState.latestItems);
       const recentAudio = valueOr(3, [] as typeof initialState.recentlyPlayedAudio);
       const resumeMovies = valueOr(4, [] as typeof initialState.resumeMovies);