Single-archive rules: stub archives and nonsense pieces dropped at the edge

The judge gets each file's articles seen and bytes, and whether the window
closed on the release. A settled release of one unsplit archive posted to 2+
groups is dropped as a stub archive when its articles are <= 256 KiB with the
release >= 1 MB, or it is in 4+ groups, or by a webmail poster (those two
under 100 MB); releases touching music, e-book, comics, tabs or fonts groups
are exempt. A one-article archive of 100 kB-1 MB under a release-like,
unscrambled name without spaces or an e-book format is dropped as a nonsense
piece. Both switched by the rule set (dropStubArchives, dropNonsensePieces),
mirrored in lib/rules, sampled like every drop (LOG.md (123)-(127)).

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

lib/edge/range_indexer.ts

@@ -62,7 +62,7 @@ export interface ProbeCandidate {
 
 /** What a rule dropped in a batch (REBUILD.md, rules and recovery). */
 export interface RuleCount {
-  rule: 'crosspost' | 'obfuscated' | 'poster' | 'executable' | 'garbage' | 'per-article' | 'incomplete'
+  rule: 'crosspost' | 'obfuscated' | 'poster' | 'executable' | 'garbage' | 'per-article' | 'stub-archive' | 'nonsense-piece' | 'incomplete'
   key: string
   articles: number
   files: number
@@ -246,9 +246,20 @@ export class RangeIndexer {
     this.completed = new Map()
     for (const [key, all] of byRelease) {
       uploadsOf(all).forEach((list, upload) => {
+        // Settled as far as this indexer knows: it judges a release's files as each batch completes them (the Rust
+        // window passes whether the window closed on the release and no block edge cut it).
         const verdict = this.rules.judge(
           key,
-          list.map((f) => ({ name: f.segments[0].file.name, totalParts: f.segments[0].totalParts, groups: f.segments[0].file.groups, firstMessageId: f.segments[0].messageId, poster: f.segments[0].file.poster }))
+          list.map((f) => ({
+            name: f.segments[0].file.name,
+            totalParts: f.segments[0].totalParts,
+            groups: f.segments[0].file.groups,
+            firstMessageId: f.segments[0].messageId,
+            poster: f.segments[0].file.poster,
+            segments: f.segments.length,
+            bytes: f.segments.reduce((n, s) => n + s.bytes, 0),
+          })),
+          true
         )
         if (verdict.rule === null) {
           this.batch.releases.push(chunkOf(key, list, upload))