Replay harness: a --to bound and the homelab window driver

edge-bench --group and replay:corpus take --to <article> next to --from, so a
replay covers one window of a group's history while the corpus holds others
(the 2016 ranges next to 2021's and 2025's). deploy/replay-window.sh runs a
window on homelab: every group whose window ranges are all stored is replayed
once into usenet_replay through the voyager-3 app image, 4 groups at a time,
looping while the corpus fill completes the rest.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

commands/replay_corpus.ts

@@ -31,7 +31,7 @@ interface StoredRange {
  * at its resume point, the range finished when its last batch is in. Then a report: releases finished, complete,
  * partial and provisional, and the catalog's bytes per header (the NVMe tables apart from those on CHUNK_TABLESPACE).
  *
- *   node ace replay:corpus --group alt.binaries.ath [--dir CORPUS_DIR] [--limit N] [--batch-chunks 5]
+ *   node ace replay:corpus --group alt.binaries.ath [--dir CORPUS_DIR] [--from A] [--to B] [--limit N] [--batch-chunks 5]
  *
  * Refuses a database not named *_replay or *_scratch. The rules are the catalog's current rule set
  * (rule_sets, the groups' priorities): copy `groups` and `rule_sets` from the catalog for a faithful replay.
@@ -54,6 +54,11 @@ export default class ReplayCorpus extends BaseCommand {
   @flags.number({ description: 'Skip ranges ending before this article (continue a replay)' })
   declare from?: number
 
+  @flags.number({
+    description: "Skip ranges starting after this article (one window of the group's history)",
+  })
+  declare to?: number
+
   @flags.number({
     description: 'Chunks of 100k articles per batch, as the worker posts them',
     default: 5,
@@ -112,7 +117,7 @@ export default class ReplayCorpus extends BaseCommand {
       `${this.group}: ${ranges.length} ranges (${ranges[0].start}–${ranges[ranges.length - 1].end}) through ${bench}, rules v${rules.version}, into ${database}.`
     )
 
-    // edge-bench walks the group directory in article order itself; --from and --limit cut its list as ours.
+    // edge-bench walks the group directory in article order itself; --from, --to and --limit cut its list as ours.
     const args = [
       '--group',
       groupDir,
@@ -124,6 +129,7 @@ export default class ReplayCorpus extends BaseCommand {
       '-',
     ]
     if (this.from) args.push('--from', String(this.from))
+    if (this.to) args.push('--to', String(this.to))
     if (this.limit) args.push('--limit', String(this.limit))
     if (this.noFinish) args.push('--no-finish')
     const started = Date.now()
@@ -215,7 +221,7 @@ export default class ReplayCorpus extends BaseCommand {
     return null
   }
 
-  /** The group directory's complete ranges (a range.json), in article order, cut by --from and --limit. */
+  /** The group directory's complete ranges (a range.json), in article order, cut by --from, --to and --limit. */
   private async storedRanges(groupDir: string): Promise<{ start: number; end: number }[]> {
     const names = await readdir(groupDir).catch(() => [] as string[])
     const ranges: { start: number; end: number }[] = []
@@ -228,6 +234,7 @@ export default class ReplayCorpus extends BaseCommand {
     }
     ranges.sort((a, b) => a.start - b.start)
     let chosen = this.from ? ranges.filter((r) => r.end >= this.from!) : ranges
+    if (this.to) chosen = chosen.filter((r) => r.start <= this.to!)
     if (this.limit) chosen = chosen.slice(0, this.limit)
     return chosen
   }