An image's post token needs a word in it, not only a size

"01of37 ## Alexi uses strange toys … ## alexis001.jpg (1/1) 57295b": with
the whole text as the name, the remainder is the file's size "57295b", which
229189f took for a post token: 16 sets of 36-37 images became 268 releases.
"MDG005b" has letters in a row; "57295b" doesn't.

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

lib/release/identity.ts

@@ -435,7 +435,9 @@ export function releaseIdentity(input: ReleaseInput): ReleaseIdentity | null {
   // every set named "IMG" was one (609 images for 90; LOG.md 2026-10-13 (42)).
   if (image) {
     const set = imageSet(stem) || prefix || stem
-    return { key: isPostToken(remainder) ? hash('stem', poster, set, remainder) : hash('stem', poster, set), name: prefix || stem, fileTotal, source: 'stem' }
+    // A word in it, not a size ("01of37 ## Alexi … ## alexis001.jpg 57295b": each image was a release of its own).
+    const post = isPostToken(remainder) && /[A-Za-z]{2}/.test(remainder)
+    return { key: post ? hash('stem', poster, set, remainder) : hash('stem', poster, set), name: prefix || stem, fileTotal, source: 'stem' }
   }
   // An audiobook's or album's tracks without a name around them: by their name without its numbers, as an
   // image set ("… Seeing A Large Cat - D11.16-22.mp3", "Candy Dulfer - Candy Store - 11 - everytime.mp3").