AGENTS.md: sync between forges, and spend pools

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017K4vyY3yUD3GsvoZaAtKkD

AGENTS.md

@@ -77,5 +77,7 @@ What to do when you meet one of these. Each row names the procedure; the procedu
 - Rebuild log: `docs/rebuild.md`.
 - Skills: `SKILLS.md` (routes, ledger, belts); the vendored folders are in `.agents/skills/`.
 - Time's engine: `teahubxyz/time` `.github/time/` (`time.py` the clock, `venture.py` the venture loop, `astra.py` the
-  daily planner, `housekeeping.py` the daily sweep, `seats.json` the seats). Its SOPs: `.agents/skills/<name>/SKILL.md`
+  daily planner, `router.py` its ranking, `housekeeping.py` the daily sweep, `sync.py` copies on other forges
+  (`time/sync.json`: one home, one writer per branch; main out fast-forward, `claude/*` branches home as PRs),
+  `seats.json` the seats). Spend pools (expiring credit, refilling windows) are `time/pools.json`. Its SOPs: `.agents/skills/<name>/SKILL.md`
   in that repo. The planner, the steward and housekeeping all write to the "Astra log" issue there (time#57).