Final completeness by time window: ranges keep their posting span, release_final() over blocks of done ranges

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

edge/check.ts

@@ -52,7 +52,7 @@ const release = (r: Item, b: number) => {
 }
 const ts: Record<string, Item[]> = { b: [], r: [], s: [], c: [], n: [], f: [] }
 batches.forEach((batch, b) => {
-  ts.b.push({ b, from: batch.from, next: batch.next, headers: batch.headers })
+  ts.b.push({ b, from: batch.from, next: batch.next, headers: batch.headers, postedLow: batch.postedLow, postedHigh: batch.postedHigh })
   for (const r of batch.releases) ts.r.push(release({ upload: r.upload, key: r.key, name: r.name, source: r.source, fileTotal: r.fileTotal, poster: r.poster, groups: r.groups, postedAt: r.postedAt, postedLast: r.postedLast, files: r.files, segments: r.segments, bytes: r.bytes, firstArticle: r.firstArticle, lastArticle: r.lastArticle, readable: r.readable, hasPar2: r.hasPar2, payload: r.payload }, b))
   for (const s of batch.samples) ts.s.push({ b, key: s.key, upload: s.upload, rule: s.rule, ruleKey: s.ruleKey, segments: s.segments })
   for (const c of batch.candidates) ts.c.push({ b, upload: c.upload, releaseKey: c.releaseKey, kind: c.kind, messageId: c.messageId, file: c.file })