Spots: the spotter and the spot inspector, passwords kept apart

Two processes, one NNTP connection each (the coordinator 40 -> 38):
- spots:read (service spotter): free.pt's overviews after the last article
  seen, each spot's full header verified (lib/spotnet from voyager 1, as
  Spotweb), its description, website and NZB articles; the password its
  title or text names; delete/dispose messages applied.
- spots:inspect (service spot-inspector): each spot's compressed NZB read,
  its files listed (spot_files), each matched to the header pass's release
  by the same release identity in one of its groups within 48 h
  (release_spots); unmatched spots matched again hourly, after 24 h a
  release of their own (source spot) with the spot's NZB.
- release_passwords: per release and password, its source (nzb, spot-title,
  spot-text) and spot; the catalog keeps only passworded.
XoverClient.head(); PROBE_CONNECTIONS default 10.

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

app/services/nzb_service.ts

@@ -1,3 +1,4 @@
+import { gunzipSync } from 'node:zlib'
 import db from '@adonisjs/lucid/services/db'
 import { decodeChunk, type ChunkFile } from '#lib/chunks/index'
 import { buildNzb } from '#lib/nzb/index'
@@ -19,8 +20,13 @@ class NzbService {
   }
 
   async build(releaseId: number): Promise<{ name: string; xml: string } | null> {
-    const release = await db.from('releases').where('id', releaseId).select('name').first()
+    const release = await db.from('releases').where('id', releaseId).select('name', 'source').first()
     if (!release) return null
+    // A release a spot made of its own (no files matched the header pass's): the spot's NZB as read.
+    if (release.source === 'spot') {
+      const spot = await db.from('spots').where('release_id', releaseId).whereNotNull('nzb').select('nzb').first()
+      if (spot) return { name: release.name, xml: gunzipSync(spot.nzb).toString('utf8') }
+    }
     const xml = buildNzb(
       (await this.files(releaseId)).map((f) => ({
         name: f.name,