Add the referenceable sandbox section that the /bullpen/sandbox mneme
namespace (already referenced in §7) points to. Covers the four topics
from the hot-log Open Items:
§8.1 Build-dir convention — /tmp/bullpen-build/<slug> + /tmp/sandbox
alias, why alias (removes slug-handoff failures), why /tmp not /
§8.2 Host boundary — .runtime files, which agent executes where,
failure signatures when wrong, pre-flight check
§8.3 Ticket rules — required fields in order (PROBLEM, REPO, TRAPS,
STEP 1+2, constraints), SPEC requirement
§8.4 Route by test file type — routing table, coordinator wiring
§8.5 Result extraction — where the green artifact lives, how to review
Also updates §7's /bullpen/sandbox entry to point to §8 and deus_ex.md.
marfrit
74abc8e1da