atproto: honest deepen progress, one summary line per repo master
The deepen status line sat at users=0 while thousands of windows completed: a repo only counts as finished at the bottom of its ladder, and nothing counted the rungs. The line now carries windows= (per completed window) alongside users= (repos fully done), deepen phase only. The per-window "deepened repo history" Info line -- one per repo per window, thirteen thousand lines in the first seven minutes of a real sweep -- drops to Debug, replaced by a single "finished deepening repo history" Info line per repo with how many windows its ladder took. "resolved bluesky identity" also drops to Debug (and says atproto): it fires on every sync operation, not first contact -- "discovered new user" is the first-contact line. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>