Rebuild: completeness as indexed, file totals from any counter, pausable tails, progress by articles

- releases.complete is computed with every batch (files >= the
  counter's total) instead of only when a release settles after 6 quiet
  hours: the 'complete' filter matched nothing in a fresh catalog.
- A release's file total comes from any counter form (counterTotal:
  '(01/10)', 'File 27 of 132', …), not only [i/M]; the post rule's key
  keeps the [i/M] total, so keys are unchanged. Both implementations.
- groups.tail: a group's live tail can be paused (its history and owner
  priority stay), e.g. to let other groups' history go first.
- Stats: history by articles, and the current pass (history ranges
  before those deferred 2000 priorities behind) as its own figure; the
  header showed 0.1% of ranges counting 145k deferred ones.

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

tools/edge-bench-rs/src/names.rs

@@ -510,7 +510,9 @@ pub fn is_poster_tag(remainder: &str, stem: &str) -> bool {
 
 /// releaseIdentity for a named (not weak) file: never null.
 pub fn release_identity(poster: &str, subject: &str, name: &str) -> Release {
-    let file_total = file_counter_total(subject);
+    // The post rule's key takes the [i/M] total; the release's file total any counter's (counterTotal).
+    let post_total = file_counter_total(subject);
+    let file_total = counter_total(subject).and_then(|t| t.parse::<i64>().ok());
     let stem = file_stem(name);
     let remainder = subject_remainder(subject);
     // A document or comic is a release of its own.
@@ -527,7 +529,7 @@ pub fn release_identity(poster: &str, subject: &str, name: &str) -> Release {
         let bound = counter_total(subject).unwrap_or_else(|| prefix.clone());
         return Release { key: hash(&["subject", poster, &remainder, &bound]), name: remainder, source: "subject", file_total };
     }
-    if let Some(total) = file_total.filter(|&n| n != 0 && !tag) {
+    if let Some(total) = post_total.filter(|&n| n != 0 && !tag) {
         if is_post_token(&remainder) {
             return Release { key: hash(&["post", poster, &remainder, &total.to_string()]), name: remainder, source: "post", file_total };
         }