Merge remote-tracking branch 'origin/main' into capy/merge-train-workflow-side

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

# Conflicts:
#	CHANGELOG.md
#	scripts/harness-version.json

scripts/free-test-seed-allowlist.json

@@ -3,6 +3,7 @@
     {"file": "test/host-conformance.test.ts", "reason": "real ./setup per host and layout; the time is setup's own skill-linking loop, not fixture copies (shared fixture landed in W6c)"},
     {"file": "test/shared-libs-stage-actor.test.ts", "reason": "re-runs the paid shared-libs runner body against git fixture repos per test; owned by the paid-harness value-bar review"},
     {"file": "test/setup-install-registry.test.ts", "reason": "82s in the 2026-10-15 recording (58s on 2026-10-04): 11 cases each run the real ./setup, gstack-relink, gstack-config and gstack-uninstall against throwaway checkouts", "todo": "split by describe block so the packer can balance it, then rerun bun run test:ubicloud --record-durations (TODOS.md, fix wave 2 follow-ups)"},
-    {"file": "test/host-renders-prune.test.ts", "reason": "64s in the 2026-10-15 recording (unseeded before): every case runs a real ./setup or the gstack-upgrade migration over host render dirs", "todo": "split by describe block so the packer can balance it, then rerun bun run test:ubicloud --record-durations (TODOS.md, fix wave 2 follow-ups)"}
+    {"file": "test/brain-sync.test.ts", "reason": "89s in the 2026-10-19 weekly recording (58s on 2026-10-15): #3254 added the case-collision suite, and every case drains a real gstack-brain-sync against a local bare remote", "todo": "split by describe block so the packer can balance it, then rerun bun run test:ubicloud --record-durations (TODOS.md, fix wave 2 follow-ups)"},
+    {"file": "test/setup-codex-scope.test.ts", "reason": "64s in the 2026-10-19 weekly recording (59s on 2026-10-15): each case runs the real ./setup twice against a Codex install fixture", "todo": "split by describe block so the packer can balance it, then rerun bun run test:ubicloud --record-durations (TODOS.md, fix wave 2 follow-ups)"}
   ]
 }

scripts/harness-version.json

@@ -16,7 +16,7 @@
     "scripts/lib/published-text.ts": {"blob":"3f2e4d616b5dd0204035710c66b64d49055c5714","since":6},
     "scripts/lib/shard-engine.ts": {"blob":"3cd0b1aaa84018b00bf9ea0ce48093f3c8492f66","since":6},
     "scripts/test-paid-shards.ts": {"blob":"8ddee5f11ed7856876135520dd8025ab989e2db9","since":6},
-    "scripts/test-pr-profile.ts": {"blob":"c03f3298a51ac04a182dc6a3bbaf286644ab59fd","since":6,"nonBehavioral":"classify the new evals-main-backstop.yml workflow as free-lane only: it dispatches evals.yml on main and runs inside no case, so no case's selection on a PR, input or verdict changes"},
+    "scripts/test-pr-profile.ts": {"blob":"d334195b0d0393622e2c380dc3e2feebe099b6e6","since":6,"nonBehavioral":"classify the new evals-main-backstop.yml workflow as free-lane only: it dispatches evals.yml on main and runs inside no case, so no case's selection on a PR, input or verdict changes"},
     "scripts/test-strict-output.ts": {"blob":"01185d20dc9761b04b9b2f751ec98664fe0eaf93","since":6},
     "test/helpers/agent-sdk-runner.ts": {"blob":"210bba92d241a90df578b2c7fc943ac5755d0025","since":6},
     "test/helpers/auq-substance-panel.ts": {"blob":"4881260ef793668e4963a062db6d06a5e1f7a40f","since":6},

scripts/test-pr-profile.ts

@@ -231,6 +231,7 @@ export const FREE_ONLY_PR_FILES = [
   'test/helpers/auq-parallel-worker.ts',
   'test/helpers/stored-zip.ts', // Read only by the free test-health report tests.
   'scripts/free-test-durations.json',
+  'scripts/free-test-seed-allowlist.json', // Read only by the free seed ratchet (test/free-seed-ratchet.test.ts).
   'scripts/paid-test-durations.json',
   'scripts/ubicloud/**',
   'capy/skill/**', // The vendored Capy skill (Drive bootstrapper): run by Capy agents, read by no paid case; test/capy-skill-wrapper.test.ts covers it.