docs(ORCH-021): staging gate SUCCESS — REAL green, C9a/C9b infra-waived

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docs/work-items/ORCH-021/15-staging-log.md

@@ -0,0 +1,42 @@
+---
+staging_status: SUCCESS
+timestamp: 2026-06-07T14:24:14Z
+base_url: http://localhost:8501
+---
+
+# Staging Gate Log
+
+Staging test suite completed. Verdict: **SUCCESS** (exit 0).
+
+Run canonically inside the `orchestrator-staging` container (ORCH-048, ADR-001)
+via the Docker Engine API over the mounted socket (`docker` CLI is not installed
+in the prod-agent container; `network_mode: host` + group `999` allow direct
+socket access):
+
+```
+python3 /repos/orchestrator/scripts/staging_check.py \
+  --base-url http://localhost:8501 --mode stub
+```
+
+## Result
+
+```
+RESULT: 8/10 checks PASS
+REAL failed         : none
+SANDBOX_INFRA failed: ['C9a Branch appears in orchestrator-sandbox', 'C9b Analyst job enqueued in staging queue']
+tolerance: staging_infra_tolerance_enabled=True
+INFRA-WAIVED: C9a Branch appears in orchestrator-sandbox, C9b Analyst job enqueued in staging queue (known sandbox-infra; real checks green)
+VERDICT: SUCCESS (exit 0) — SUCCESS (infra-waived): ['C9a Branch appears in orchestrator-sandbox', 'C9b Analyst job enqueued in staging queue'] are known sandbox-infra checks; all real checks green
+```
+
+- **Block A (SMOKE):** A1 `/health` 200 ok, A2 `/queue` 200, A3 `ORCH_STAGING=true` — all PASS.
+- **Block B (ACCESS):** B4 Plane sandbox, B5 Gitea `orchestrator-sandbox` (push=true),
+  B6 registry isolation (sandbox present, prod ET/ORCH absent) — all PASS.
+- **Block C (E2E, stub):** C7 create issue in SANDBOX, C8 trigger pipeline via
+  `/webhook/plane` — PASS. C9a/C9b FAILED but are sandbox-infra checks (bot accounts
+  not members of the SANDBOX Plane project) — **waived** per ORCH-061; not a pipeline
+  regression. Cleanup deleted the test Plane issue (HTTP 204).
+
+All REAL pipeline checks are green; the only failures are the two known
+sandbox-infra checks, which the verdict tolerates (`staging_infra_tolerance_enabled=true`).
+The script exited 0 → advance.