Release completeness check without reading every binary; SEED_RANGES

release_complete() matched each par2-listed file through a correlated
subquery that scanned all binaries per listed file, run twice per
inserted release_files row: one insert of a few thousand rows ran for
20+ minutes. It now reads the release's files once by release id, and
release_files refreshes once per INSERT statement.

seed:node's SEED_CONNECTIONS/--connections is now SEED_RANGES/--ranges.

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

commands/SeedNode.ts

@@ -33,7 +33,7 @@ interface Lease {
  * connection(s) (D37), and posts the results back in gzip-compressed
  * batches. Outgoing requests only: no ports, database or Redis needed.
  *
- *   SEED_URL=https://seed.example SEED_TOKEN=sn_… NNTP_HOST=… node ace seed:node --connections 4
+ *   SEED_URL=https://seed.example SEED_TOKEN=sn_… node ace seed:node --ranges 4 --inspectors 2
  */
 export default class SeedNode extends BaseCommand {
   public static commandName = 'seed:node'
@@ -53,10 +53,10 @@ export default class SeedNode extends BaseCommand {
 
   @flags.number({
     description:
-      'Ranges worked on at once, one NNTP connection each; 0 for an inspection-only node (default: SEED_CONNECTIONS or 1)',
-    default: process.env.SEED_CONNECTIONS ? Number(process.env.SEED_CONNECTIONS) : 1,
+      'Ranges seeded at once (with SEED_FETCH=direct, one NNTP connection each); 0 for an inspection-only node (default: SEED_RANGES or 1)',
+    default: process.env.SEED_RANGES ? Number(process.env.SEED_RANGES) : 1,
   })
-  declare connections: number
+  declare ranges: number
 
   @flags.number({
     description:
@@ -100,11 +100,11 @@ export default class SeedNode extends BaseCommand {
 
     const api = new SeedApi(base, token, (message) => this.logger.warning(message))
     this.logger.info(
-      `Seeding node for ${base}: ${this.connections} range(s) at once, ${this.fetch === 'direct' ? 'own NNTP connections' : 'headers through the seed API'}` +
+      `Seeding node for ${base}: ${this.ranges} range(s) at once, ${this.fetch === 'direct' ? 'own NNTP connections' : 'headers through the seed API'}` +
         (this.inspectors > 0 ? `; ${this.inspectors} inspection(s) at once, articles through the seed API.` : '.')
     )
     await Promise.all([
-      ...Array.from({ length: this.connections }, (_, i) => this.work(api, i + 1)),
+      ...Array.from({ length: this.ranges }, (_, i) => this.work(api, i + 1)),
       ...Array.from({ length: this.inspectors }, (_, i) => this.inspect(api, i + 1)),
     ])
     this.logger.info('Seeding node stopped.')