Schedule 18:00Z custody for acknowledged audit-core E2

Record the owner-acknowledged window, pin the runner invocation including
the forged fixture id, and ask railiance-platform to project identities
only at window start. No mint, no pod apply, no packets.

Assistant: grok
Assistant-Session: 01a02670-3345-76f2-a014-70fde8e2a2bb

engagements/runtime/README.md

@@ -1,4 +1,7 @@
 The `audit-core-e2-pod.yaml` manifest is bound to cancelled engagement
-`WH-ENG-20260821-AUDIT-E2`. Do not apply it. New live runs use
-`plane/runner-pod.yaml` with a new unretired engagement ID after the plane
-exists.
+`WH-ENG-20260821-AUDIT-E2`. Do not apply it.
+
+`whitehat-e2-audit-20260822.yaml` is the contract for
+`WH-ENG-20260822-AUDIT-E2-01`. Do not apply it until custody has projected
+the two mount-only tokens at window start. Invocation details are in
+`WH-ENG-20260822-AUDIT-E2-01-invocation.md`.

engagements/runtime/WH-ENG-20260822-AUDIT-E2-01-invocation.md

@@ -0,0 +1,48 @@
+# WH-ENG-20260822-AUDIT-E2-01 — invocation (no secrets)
+
+Do not apply the runner pod and do not mint credentials until the custody
+owner projects two mount-only tokens at window start. Minting now would
+exhaust the 900-second TTL before `18:00Z`.
+
+Current time-gate: `validate-engagement` and `admit-plane` fail closed with
+`engagement window has not started` until `2026-08-22T18:00:00Z`. After the
+window opens, `admit-plane` still fails closed while the live custody broker
+is unconnected.
+
+## Custody projection (railiance-platform)
+
+Schedule, do not mint early:
+
+| Handle | Binding |
+| --- | --- |
+| token-a | `source=whitehat-security`, tenant `tenant:trial:whitehat-a-20260822`, `may_read=true`, `may_write=true` |
+| token-b | `source=whitehat-security`, tenant `tenant:trial:whitehat-b-20260822`, `may_read=true`, `may_write=true` |
+
+- Secret name `whitehat/whitehat-e2-audit-credentials` (namespace `whitehat`)
+- Keys `token-a`, `token-b` only; never the full sender registry
+- Issue at `2026-08-22T18:00:00Z`, `expires_at` `2026-08-22T18:15:00Z`, TTL ≤ 900s
+- Attended registry reload and cleanup before expiry
+- Never return token values to whitehat, State Hub, or chat
+
+## Runner (inside the admitted pod, after projection)
+
+```
+python3 - \
+  --base-url http://audit-core.audit-core.svc.cluster.local:8080 \
+  --engagement-id WH-ENG-20260822-AUDIT-E2-01 \
+  --target-revision sha256:c2fe39a0185b99be3fc0cb14d2de69772b8e66e20490097c9d11d90cc39719a6 \
+  --token-a-file /var/run/secrets/whitehat/token-a \
+  --token-b-file /var/run/secrets/whitehat/token-b \
+  --tenant-a tenant:trial:whitehat-a-20260822 \
+  --tenant-b tenant:trial:whitehat-b-20260822 \
+  --event-a whitehat-e2-event-a-20260822 \
+  --event-b whitehat-e2-event-b-20260822 \
+  --absent-event whitehat-e2-absent-20260822 \
+  --forged-event whitehat-e2-forged-b-20260822 \
+  --correlation whitehat-e2-correlation-20260822 \
+  --occurred-at 2026-08-22T18:00:00Z \
+  --rate 10 --max-requests 30 --abort-p95-ms 500
+```
+
+stdin is `runners/audit_core_e2.py`. The forged event argument is mandatory
+and must stay inside `fixture_ids`.

engagements/runtime/whitehat-e2-audit-20260822.yaml

@@ -0,0 +1,53 @@
+# CONTRACT ONLY. Do not apply until custody has projected
+# whitehat/whitehat-e2-audit-credentials at window start.
+# Never reuse WH-ENG-20260821-AUDIT-E2.
+apiVersion: v1
+kind: Pod
+metadata:
+  name: whitehat-e2-audit
+  namespace: whitehat
+  labels:
+    app.kubernetes.io/name: whitehat-security
+    app.kubernetes.io/component: whitehat-probe
+    whitehat.security/plane: "true"
+    whitehat.security/target: audit-core
+    whitehat.security/engagement: WH-ENG-20260822-AUDIT-E2-01
+spec:
+  serviceAccountName: whitehat-runner
+  automountServiceAccountToken: false
+  activeDeadlineSeconds: 900
+  restartPolicy: Never
+  securityContext:
+    runAsNonRoot: true
+    runAsUser: 10001
+    runAsGroup: 10001
+    fsGroup: 10001
+    seccompProfile:
+      type: RuntimeDefault
+  containers:
+    - name: probe
+      image: forgejo.coulomb.social/coulomb/audit-core@sha256:c2fe39a0185b99be3fc0cb14d2de69772b8e66e20490097c9d11d90cc39719a6
+      imagePullPolicy: IfNotPresent
+      command: ["sleep", "900"]
+      resources:
+        requests: {cpu: 5m, memory: 16Mi}
+        limits: {cpu: 50m, memory: 64Mi}
+      securityContext:
+        allowPrivilegeEscalation: false
+        capabilities:
+          drop: ["ALL"]
+        readOnlyRootFilesystem: true
+      volumeMounts:
+        - name: credentials
+          mountPath: /var/run/secrets/whitehat
+          readOnly: true
+  volumes:
+    - name: credentials
+      secret:
+        secretName: whitehat-e2-audit-credentials
+        defaultMode: 0440
+        items:
+          - key: token-a
+            path: token-a
+          - key: token-b
+            path: token-b