The par2 prune gets 2 min per round (it held the merges back for hours); abandoned ranges past their end are finished

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

commands/coordinator_run.ts

@@ -6,6 +6,7 @@ import Planner from '#services/planner'
 import FragmentMerger from '#services/fragment_merger'
 import Settler from '#services/settler'
 import RangeBlocks from '#services/range_blocks'
+import Leases from '#services/leases'
 import NntpPool from '#services/nntp_pool'
 import coordinatorConfig from '#config/coordinator'
 
@@ -70,6 +71,8 @@ export default class CoordinatorRun extends BaseCommand {
     const blocks = (async () => {
       while (main && !stopping) {
         try {
+          const abandoned = await Leases.finishAbandoned()
+          if (abandoned > 0) this.logger.info(`Finished ${abandoned} ranges read to their end whose worker went quiet.`)
           await RangeBlocks.rebuild()
         } catch (error: any) {
           this.logger.error(`Range blocks failed: ${error.message}`)