Readable names: a token-by-token classifier for the readable flag

Searches with the readable filter on returned scrambles: with a random
4-letter query nearly every hit was one ("Zx5AjNaK-mh7CFg6Hf8uu",
"Description - Lt5nHjlo3RiuBb3C", "PsNdnYiugfZ", "bd5b...-addon"), and
15% of a 6,000-row sample of the catalog's readable names were. looksRandom
knows single-token shapes only; separators, spaces, a random "extension"
of any length and a packaging word hid the rest.

isUnreadableName (lib/release/readable.ts) and names::is_unreadable_name
read a name token by token: words (one case or Capitalized), scrambles
(letter/digit and case switches, lone letters between capitals, inner
capital runs, few vowels, hex) and neutral tokens (digits, codes like
S02E10 and 1080p, CamelCase, packaging words); a name is unreadable when
its scrambles outweigh its words. Scene tags' "i" for "I" and the
NZBSPLIT hash are read as such. On the evaluation sets: 554 of 559
random-search names caught, 0 of 630 real names flagged (LOG.md (129)).

The edge's readable flag and the prober's inner names use it; the drop
rules keep looksRandom, which is narrower. An unnamed release goes to the
pending store (decision f), so more of the obfuscated groups' releases
wait for a probe now. releases:readable clears the flag on the existing
catalog's rows by name (a dry run by default).

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

lib/probe/inspect.ts

@@ -5,7 +5,7 @@ import { parseRarHeaders } from '#lib/rar/index'
 import { parseSevenZipTail } from '#lib/sevenzip/index'
 import { parseZipStart } from '#lib/zip/index'
 import { sniffContentType, type ContentType } from '#lib/content/index'
-import { fileStem, looksRandom } from '#lib/release/index'
+import { isUnreadableName } from '#lib/release/index'
 
 /** What one probed article showed (REBUILD.md, part 6; stored per release and kind). */
 export interface Inspection {
@@ -139,7 +139,7 @@ export function usableName(inspection: Inspection, kind: string): string | null
   const usable = (n: string | undefined) => {
     if (!n) return null
     const name = n.replace(/^.*[\\/]/, '').slice(0, 255)
-    return name && !PACKAGING.test(name) && !looksRandom(fileStem(name)) ? name : null
+    return name && !PACKAGING.test(name) && !isUnreadableName(name) ? name : null
   }
   const named = (inspection.names ?? []).map(usable).find((n) => n)
   if (named) return named