Dates are no file counters

"Avira AntiVir Rescue System 08-29-2011.rar", "Android Apps and Games
Pack 27-02-2011", "…-cable-18-08-2012-1king.rar": counterTotal read the
date as a counter (8 of 29, 2 of 2011), so the release showed a wrong
file total and counted as incomplete. Dates (2011-08-29, 08-29-2011,
29.08.2011, 02-2011) are taken out before the written-out counters are
read; [i/M] and (i/M) come first as before. Both implementations; tests;
fixtures identical.

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

lib/release/identity.ts

@@ -138,12 +138,18 @@ const DOCUMENT = /\.(pdf|epub|mobi|azw3?|djvu|cbr|cbz|cb7|chm|lit|docx?)$/i
  * removes, the first form found first: [i/M] or (i/M), "i of M", [i-M], i/M,
  * 0i-M (the last four only when i <= M).
  */
+/** Dates in names: 2011-08-29, 08-29-2011 or 29.08.2011, 02-2011. */
+const DATES = /\b(?:(?:19|20)\d{2}[-._ ](?:0?[1-9]|1[0-2])[-._ ]\d{1,2}|\d{1,2}[-._ ]\d{1,2}[-._ ](?:19|20)\d{2}|\d{1,2}[-._](?:19|20)\d{2})\b/g
+
 export function counterTotal(subject: string): number | undefined {
   const s = subject.replace(/"[^"]*"/g, ' ')
   const plain = /\[(\d+)\/(\d+)\]|\((\d+)\/(\d+)\)/.exec(s)
   if (plain) return Number(plain[2] ?? plain[4])
+  // Dates are no counters ("Avira AntiVir Rescue System 08-29-2011.rar", "… 27-02-2011", "18-08-2012"):
+  // read as "8 of 29", such a release showed a wrong file total and counted as incomplete.
+  const undated = s.replace(DATES, ' ')
   for (const pattern of [/[[(]?\b(?:file\s+)?(\d+)\s*of\s*(\d+)\b/gi, /\[(\d+)-(\d+)\]/g, /\b(\d+)\/(\d+)\b/g, /\b(0\d*)-(\d+)\b/g]) {
-    for (const m of s.matchAll(pattern)) if (Number(m[1]) <= Number(m[2])) return Number(m[2])
+    for (const m of undated.matchAll(pattern)) if (Number(m[1]) <= Number(m[2])) return Number(m[2])
   }
   return undefined
 }