Fix stale Daytona sandbox detection

Author: sjarmak

.beads/backup/backup_state.json

@@ -1,7 +1,7 @@
 {
-  "last_dolt_commit": "hlnuvrgpg0f8cllir8ul8pqjosda96p3",
+  "last_dolt_commit": "kvp2903gb0busjpo8243gflu7vdcrncj",
   "last_event_id": 0,
-  "timestamp": "2026-03-08T13:21:29.848243524Z",
+  "timestamp": "2026-03-09T00:31:42.817665315Z",
   "counts": {
     "issues": 7,
     "events": 19,

docs/QUICKSTART.md

@@ -0,0 +1,13 @@
+# Quickstart
+
+Use [docs/START_HERE_BY_TASK.md](./START_HERE_BY_TASK.md) for repo workflows.
+
+For Beads usage in this repository:
+
+- Install or update Beads with the command in [AGENTS.md](../AGENTS.md).
+- Use the upstream Beads quickstart for CLI details: <https://github.com/steveyegge/beads/blob/main/docs/QUICKSTART.md>
+
+For Daytona benchmark execution:
+
+- Start with [docs/DAYTONA.md](./DAYTONA.md).
+- Check account readiness with `python3 scripts/check_infra.py` and `python3 scripts/account_health.py status`.