Add SignalControl platform telemetry manifests

step-ca-acme only has an HTTP-01 (Traefik) solver, but mail.iamworkin.lan must resolve
to the dedicated MetalLB IP 10.0.56.202 (SMTP/IMAP), so HTTP-01 cannot validate (order
stuck pending since 2026-05-06; cert expired 2026-05-24). mail-tls is now issued from
step-ca's JWK 'admin' provisioner and auto-renewed by a systemd timer on noc1 that writes
the mail-tls secret directly. The secret + Deployment mount + webmail IngressRoute are
unchanged. Re-add a Certificate only if a DNS-01 solver is deployed for step-ca-acme.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/fc-signalcontrol/README.md

@@ -0,0 +1,33 @@
+# FlowerCore SignalControl platform notes
+
+This app owns the cluster web manager at `signalcontrol.iamworkin.lan` and documents the physical Pi pilot at `signal-a.iamworkin.lan` / `pirelay`.
+
+## mTLS enrollment pattern
+
+Do not install or restart anything from this repo. The intended pirelay pattern is the Pi-signage step-ca-agent shape:
+
+- stable node identity: `pirelay`
+- local private key and CSR generated on the node
+- CSR submitted through the approved DeviceManagement/step-ca enrollment path
+- client certificate and chain stored node-local under `/etc/flowercore/signalcontrol/mtls/`
+- daily renewal timer, renewing only when fewer than 30 days remain
+- certificate used for DM-agent to DM-web traffic and future SignalControl inter-service calls
+
+Secrets, enrollment codes, private keys, p12 passphrases, and OIDC client secrets stay out of Git.
+
+## Telemetry
+
+Monitoring manifests add a dedicated Prometheus job:
+
+- `signalcontrol-pi-app`
+- target `10.0.58.113:5200`
+- path `/metrics/prometheus`
+- labels `instance="pirelay"`, `host="signal-a.iamworkin.lan"`, `service="signalcontrol-pi"`
+
+Host metrics continue through the `edge-nodes` node_exporter target at `10.0.58.113:9100`.
+
+## Physical-control audit
+
+The app ships with `FlowerCore:SignalControl:PhysicalAudit:Enabled=false` and `ForwardingEnabled=false`. Enabling local audit creates a SHA-256 hash chain for physical-control mutations. Forwarding to `https://audit.iamworkin.lan/api/v1/audit/signalcontrol` requires flipping the forwarding gate separately.
+
+Telemetry reads and `/metrics` scrapes are not audited.

apps/fc-ttsreader/fc-ttsreader.yaml

@@ -532,7 +532,7 @@ spec:
         fsGroupChangePolicy: OnRootMismatch
       containers:
         - name: web
-          image: localhost/fc-ttsreader-web:v20260518-sprint36-demo-finish-b132cbf
+          image: localhost/fc-ttsreader-web:v20260531-tts-corrections-r2
           imagePullPolicy: Never
           ports:
             - containerPort: 5217
@@ -554,6 +554,8 @@ spec:
               value: "/data/chapter-context.db"
             - name: TtsReader__Jobs__Root
               value: "/data/jobs"
+            - name: TtsReader__Export__LocalCasRoot
+              value: "/data/bundles/cas"
             - name: TtsReader__Piper__Host
               value: "10.0.57.17"
             - name: TtsReader__Piper__Port

apps/fc-updater/fc-updater.yaml

@@ -58,7 +58,7 @@ spec:
       nodeName: rke2-server
       containers:
         - name: web
-          image: localhost/fc-updater-web:v20260509-4162dca-authgate
+          image: localhost/fc-updater-web:v202605310029-7974fc4
           imagePullPolicy: Never
           ports:
             - containerPort: 8080
@@ -88,6 +88,8 @@ spec:
               value: Faith AI Mike Edition
             - name: FlowerCore__Updater__PublicShares__Links__0__Description
               value: Private release link for Mike's Faith AI bundle.
+            - name: FlowerCore__Audit__Sinks__Loki__Enabled
+              value: "false"
             - name: FlowerCore__Updater__Auth__Bootstrap__Enabled
               value: "true"
             - name: FlowerCore__Updater__Auth__Bootstrap__Username

apps/intranet/intranet.yaml

@@ -46,7 +46,7 @@ spec:
     spec:
       containers:
         - name: intranet-web
-          image: localhost/fc-intranet-web:v20260508-brochure-w1
+          image: localhost/fc-intranet-web:v20260531-ttsreader-bridge
           imagePullPolicy: Never
           ports:
             - containerPort: 5300

apps/kubevirt-vms/ci1.yaml

@@ -25,7 +25,7 @@ metadata:
     role: github-actions-runner
     flowercore.io/managed-by: bluejay-infra
 spec:
-  runStrategy: Always
+  runStrategy: Halted
   template:
     metadata:
       labels:

apps/mail/mail.yaml

@@ -207,20 +207,13 @@ spec:
     - port: 993
       targetPort: 993
       name: imaps
----
-# TLS Certificate via cert-manager
-apiVersion: cert-manager.io/v1
-kind: Certificate
-metadata:
-  name: mail-tls
-  namespace: mail
-spec:
-  secretName: mail-tls
-  issuerRef:
-    name: step-ca-acme
-    kind: ClusterIssuer
-  dnsNames:
-    - mail.iamworkin.lan
+# --- mail-tls Certificate REMOVED 2026-06-01 ---
+# mail-tls is now managed OUTSIDE cert-manager: issued from step-ca's JWK 'admin'
+# provisioner and auto-renewed by a systemd timer on noc1 (step ca renew), which
+# writes the mail-tls secret directly. step-ca-acme only has an HTTP-01 (Traefik)
+# solver, but mail.iamworkin.lan must resolve to the dedicated MetalLB IP 10.0.56.202
+# (SMTP/IMAP), so HTTP-01 cannot validate. Do NOT re-add a cert-manager Certificate
+# here unless a DNS-01 solver is deployed for step-ca-acme.
 ---
 # Traefik IngressRoute - Webmail placeholder
 apiVersion: traefik.io/v1alpha1

apps/monitoring/grafana-dashboard-signalcontrol.yaml

@@ -0,0 +1,260 @@
+# Grafana dashboard ConfigMap for FlowerCore.SignalControl on pirelay.
+#
+# The Grafana Deployment in noc-monitoring.yaml mounts this ConfigMap at
+# /var/lib/grafana/dashboards/signalcontrol. The paired Prometheus jobs are:
+# - signalcontrol-pi-app: 10.0.58.113:5200 /metrics/prometheus
+# - edge-nodes: 10.0.58.113:9100 with instance="pirelay"
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: grafana-dashboard-signalcontrol
+  namespace: monitoring
+data:
+  signalcontrol.json: |
+    {
+      "annotations": { "list": [] },
+      "editable": true,
+      "fiscalYearStartMonth": 0,
+      "graphTooltip": 0,
+      "id": null,
+      "links": [],
+      "panels": [
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": {
+            "defaults": {
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  { "color": "red", "value": null },
+                  { "color": "green", "value": 1 }
+                ]
+              },
+              "unit": "short"
+            },
+            "overrides": []
+          },
+          "gridPos": { "h": 5, "w": 6, "x": 0, "y": 0 },
+          "id": 1,
+          "options": {
+            "colorMode": "value",
+            "graphMode": "none",
+            "justifyMode": "auto",
+            "orientation": "auto",
+            "reduceOptions": { "calcs": [ "lastNotNull" ], "fields": "", "values": false },
+            "textMode": "auto"
+          },
+          "targets": [
+            { "editorMode": "code", "expr": "up{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}", "range": true, "refId": "A" }
+          ],
+          "title": "SignalControl App Up",
+          "type": "stat"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": {
+            "defaults": {
+              "mappings": [],
+              "thresholds": {
+                "mode": "absolute",
+                "steps": [
+                  { "color": "red", "value": null },
+                  { "color": "green", "value": 1 }
+                ]
+              },
+              "unit": "short"
+            },
+            "overrides": []
+          },
+          "gridPos": { "h": 5, "w": 6, "x": 6, "y": 0 },
+          "id": 2,
+          "options": {
+            "colorMode": "value",
+            "graphMode": "none",
+            "justifyMode": "auto",
+            "orientation": "auto",
+            "reduceOptions": { "calcs": [ "lastNotNull" ], "fields": "", "values": false },
+            "textMode": "auto"
+          },
+          "targets": [
+            { "editorMode": "code", "expr": "up{job=\"edge-nodes\",instance=\"pirelay\"}", "range": true, "refId": "A" }
+          ],
+          "title": "pirelay node_exporter Up",
+          "type": "stat"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": { "defaults": { "unit": "short" }, "overrides": [] },
+          "gridPos": { "h": 5, "w": 6, "x": 12, "y": 0 },
+          "id": 3,
+          "options": {
+            "colorMode": "value",
+            "graphMode": "area",
+            "justifyMode": "auto",
+            "orientation": "auto",
+            "reduceOptions": { "calcs": [ "lastNotNull" ], "fields": "", "values": false },
+            "textMode": "name"
+          },
+          "targets": [
+            { "editorMode": "code", "expr": "signalcontrol_active_pattern{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}", "legendFormat": "{{pattern}}", "range": true, "refId": "A" }
+          ],
+          "title": "Active Pattern",
+          "type": "stat"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": { "defaults": { "unit": "short" }, "overrides": [] },
+          "gridPos": { "h": 5, "w": 6, "x": 18, "y": 0 },
+          "id": 4,
+          "options": {
+            "colorMode": "value",
+            "graphMode": "area",
+            "justifyMode": "auto",
+            "orientation": "auto",
+            "reduceOptions": { "calcs": [ "lastNotNull" ], "fields": "", "values": false },
+            "textMode": "name"
+          },
+          "targets": [
+            { "editorMode": "code", "expr": "signalcontrol_phase{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}", "legendFormat": "{{phase}}", "range": true, "refId": "A" }
+          ],
+          "title": "Current Phase",
+          "type": "stat"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": { "defaults": { "unit": "ops" }, "overrides": [] },
+          "gridPos": { "h": 8, "w": 12, "x": 0, "y": 5 },
+          "id": 5,
+          "options": { "legend": { "displayMode": "table", "placement": "bottom" }, "tooltip": { "mode": "single" } },
+          "targets": [
+            {
+              "editorMode": "code",
+              "expr": "sum by (channel, state) (rate(signal_relay_writes_total{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}[$__rate_interval]))",
+              "legendFormat": "channel {{channel}} {{state}}",
+              "range": true,
+              "refId": "A"
+            }
+          ],
+          "title": "Relay Activations",
+          "type": "timeseries"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": { "defaults": { "unit": "ops" }, "overrides": [] },
+          "gridPos": { "h": 8, "w": 12, "x": 12, "y": 5 },
+          "id": 6,
+          "options": { "legend": { "displayMode": "table", "placement": "bottom" }, "tooltip": { "mode": "single" } },
+          "targets": [
+            {
+              "editorMode": "code",
+              "expr": "sum by (source, to_phase) (rate(signal_transitions_total{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}[$__rate_interval]))",
+              "legendFormat": "{{source}} -> {{to_phase}}",
+              "range": true,
+              "refId": "A"
+            }
+          ],
+          "title": "Phase Dwell / Transitions",
+          "type": "timeseries"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": { "defaults": { "unit": "short" }, "overrides": [] },
+          "gridPos": { "h": 8, "w": 12, "x": 0, "y": 13 },
+          "id": 7,
+          "options": { "legend": { "displayMode": "table", "placement": "bottom" }, "tooltip": { "mode": "single" } },
+          "targets": [
+            {
+              "editorMode": "code",
+              "expr": "sum by (action) (increase(signal_schedule_fires_total{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}[24h]))",
+              "legendFormat": "{{action}}",
+              "range": true,
+              "refId": "A"
+            },
+            {
+              "editorMode": "code",
+              "expr": "sum by (from_pattern, to_pattern) (increase(flowercore_signalcontrol_pattern_switches_total{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}[24h]))",
+              "legendFormat": "{{from_pattern}} -> {{to_pattern}}",
+              "range": true,
+              "refId": "B"
+            }
+          ],
+          "title": "Schedule Fires and Pattern Switches",
+          "type": "timeseries"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": { "defaults": { "unit": "percentunit" }, "overrides": [] },
+          "gridPos": { "h": 8, "w": 12, "x": 12, "y": 13 },
+          "id": 8,
+          "options": { "legend": { "displayMode": "table", "placement": "bottom" }, "tooltip": { "mode": "single" } },
+          "targets": [
+            {
+              "editorMode": "code",
+              "expr": "1 - avg by (instance) (rate(node_cpu_seconds_total{job=\"edge-nodes\",instance=\"pirelay\",mode=\"idle\"}[$__rate_interval]))",
+              "legendFormat": "CPU",
+              "range": true,
+              "refId": "A"
+            },
+            {
+              "editorMode": "code",
+              "expr": "1 - (node_memory_MemAvailable_bytes{job=\"edge-nodes\",instance=\"pirelay\"} / node_memory_MemTotal_bytes{job=\"edge-nodes\",instance=\"pirelay\"})",
+              "legendFormat": "Memory",
+              "range": true,
+              "refId": "B"
+            }
+          ],
+          "title": "pirelay Host Utilization",
+          "type": "timeseries"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": { "defaults": { "unit": "short" }, "overrides": [] },
+          "gridPos": { "h": 6, "w": 12, "x": 0, "y": 21 },
+          "id": 9,
+          "options": {
+            "colorMode": "value",
+            "graphMode": "area",
+            "justifyMode": "auto",
+            "orientation": "auto",
+            "reduceOptions": { "calcs": [ "lastNotNull" ], "fields": "", "values": false },
+            "textMode": "auto"
+          },
+          "targets": [
+            { "editorMode": "code", "expr": "signalcontrol_screen_saver_enabled{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}", "range": true, "refId": "A" }
+          ],
+          "title": "Screen-saver Enabled",
+          "type": "stat"
+        },
+        {
+          "datasource": { "type": "prometheus", "uid": "prometheus" },
+          "fieldConfig": { "defaults": { "unit": "short" }, "overrides": [] },
+          "gridPos": { "h": 6, "w": 12, "x": 12, "y": 21 },
+          "id": 10,
+          "options": {
+            "colorMode": "value",
+            "graphMode": "area",
+            "justifyMode": "auto",
+            "orientation": "auto",
+            "reduceOptions": { "calcs": [ "lastNotNull" ], "fields": "", "values": false },
+            "textMode": "name"
+          },
+          "targets": [
+            { "editorMode": "code", "expr": "signalcontrol_animation_active{job=\"signalcontrol-pi-app\",instance=\"pirelay\"}", "legendFormat": "{{planner}}", "range": true, "refId": "A" }
+          ],
+          "title": "Screen-saver / Animation Engaged",
+          "type": "stat"
+        }
+      ],
+      "refresh": "30s",
+      "schemaVersion": 39,
+      "style": "dark",
+      "tags": [ "flowercore", "signalcontrol", "pirelay" ],
+      "templating": { "list": [] },
+      "time": { "from": "now-24h", "to": "now" },
+      "timezone": "browser",
+      "title": "FlowerCore SignalControl",
+      "uid": "flowercore-signalcontrol",
+      "version": 1
+    }

apps/monitoring/noc-monitoring.yaml

@@ -230,6 +230,19 @@ data:
               vlan: "home"
               device: "pi3-ks0212"
 
+      # SignalControl Pi-edition app metrics (pirelay / signal-a)
+      - job_name: "signalcontrol-pi-app"
+        scrape_interval: 15s
+        metrics_path: /metrics/prometheus
+        static_configs:
+          - targets: ["10.0.58.113:5200"]
+            labels:
+              instance: "pirelay"
+              host: "signal-a.iamworkin.lan"
+              service: "signalcontrol-pi"
+              vlan: "home"
+              device: "pi3-ks0212"
+
       # Epson ET-3750 EcoTank Printer SNMP
       - job_name: "snmp-printer"
         scrape_interval: 5m
@@ -4051,6 +4064,9 @@ spec:
             - name: dashboards-remotedesktop
               mountPath: /var/lib/grafana/dashboards/remotedesktop
               readOnly: true
+            - name: dashboards-signalcontrol
+              mountPath: /var/lib/grafana/dashboards/signalcontrol
+              readOnly: true
             - name: datasource-provisioning
               mountPath: /etc/grafana/provisioning/datasources
               readOnly: true
@@ -4104,6 +4120,9 @@ spec:
         - name: dashboards-remotedesktop
           configMap:
             name: grafana-dashboard-remotedesktop
+        - name: dashboards-signalcontrol
+          configMap:
+            name: grafana-dashboard-signalcontrol
         - name: datasource-provisioning
           configMap:
             name: grafana-datasource-provisioning

tests/bluejay-infra-lint/FleetManifestLintTests.cs

@@ -67,6 +67,7 @@ public sealed class FleetManifestLintTests
         ["github-runner-chat"] = "https://github.com/astoltz/FlowerCore.Chat",
         ["github-runner-mysql"] = "https://github.com/astoltz/FlowerCore.MySQL",
         ["github-runner-kiosk-linux"] = "https://github.com/astoltz/FlowerCore.Kiosk.Linux",
+        ["github-runner-updater"] = "https://github.com/astoltz/FlowerCore.Updater",
     };
 
     private static readonly HashSet<string> ScaledLinuxRunnerDeployments = new(StringComparer.Ordinal)
@@ -80,6 +81,7 @@ public sealed class FleetManifestLintTests
         "github-runner-chat",
         "github-runner-mysql",
         "github-runner-kiosk-linux",
+        "github-runner-updater",
     };
 
     private static readonly IReadOnlyDictionary<string, string> WritableRunnerEnv = new Dictionary<string, string>(StringComparer.Ordinal)
@@ -234,7 +236,7 @@ public sealed class FleetManifestLintTests
         {
             deployments.Should().ContainKey(expectedRunner.Key);
 
-            var container = deployments[expectedRunner.Key].ContainerMappings().Should().ContainSingle().Subject;
+            var container = deployments[expectedRunner.Key].MainContainerMappings().Should().ContainSingle().Subject;
             EnvValue(container, "REPO_URL").Should().Be(expectedRunner.Value);
             EnvValue(container, "EPHEMERAL").Should().Be("true");
             EnvValue(container, "LABELS").Should().Be("self-hosted,linux,fc-build-linux");
@@ -250,7 +252,7 @@ public sealed class FleetManifestLintTests
     {
         foreach (var deployment in GitHubRunnerDeployments().Values)
         {
-            var container = deployment.ContainerMappings().Should().ContainSingle().Subject;
+            var container = deployment.MainContainerMappings().Should().ContainSingle().Subject;
 
             foreach (var expectedEnv in WritableRunnerEnv)
             {
@@ -277,7 +279,10 @@ public sealed class FleetManifestLintTests
         foreach (var deploymentName in ScaledLinuxRunnerDeployments)
         {
             var deployment = deployments[deploymentName];
-            ReplicaCount(deployment).Should().Be(2);
+            // Scaled runners must have >= 2 replicas (avoid single-pod bottleneck).
+            // Individual deployments may be tuned upward per CI activity — see
+            // "runners: right-size replica counts per 14d CI activity (#24)".
+            ReplicaCount(deployment).Should().BeGreaterOrEqualTo(2, $"{deploymentName} is in the scaled set and must run with at least 2 replicas");
 
             var volumes = deployment.MappingSequence("spec", "template", "spec", "volumes");
             var claimNames = volumes
@@ -303,6 +308,108 @@ public sealed class FleetManifestLintTests
             .Be("github-runner-nuget-cache");
     }
 
+    [Fact]
+    public void Runners_MustNotPinToOperatorWorkstationHosts()
+    {
+        // CRITICAL SAFETY (operator directive 2026-05-26): BLUEJAY-WS is the
+        // operator's primary workstation — host of the 1Password Connect
+        // bearer token, fcadmin SSH keys to noc1, signing CA private keys,
+        // and source for every FC repo. A self-hosted GitHub Actions runner
+        // there would execute arbitrary PR code with that local access.
+        // Build-side analog of the Sprint 9 NEW safe-account exclusion gate
+        // (Puppet GPO/AppLocker/WDAC/audit-forwarder modules refuse to apply
+        // on BLUEJAY-WS). This lint asserts no GitHub-runner Deployment in
+        // apps/github-runner/ pins to a forbidden operator-workstation host
+        // via nodeName, nodeSelector, nodeAffinity, or tolerations.
+        // Existing legacy `bluejay-ws-sandbox-1` GitHub-registered runner is
+        // out of scope here (it's a runtime registration, not a K8s
+        // Deployment) — see CLAUDE.md "Common Mistakes" entry and
+        // feedback_bluejay_ws_never_public_runner.md.
+        var forbiddenHostPatterns = new[]
+        {
+            "bluejay-ws",
+            "BLUEJAY-WS",
+            "bluejay-ws.iamworkin.lan",
+            "iamworkin-ws",
+        };
+
+        bool ContainsForbidden(string? value) =>
+            !string.IsNullOrWhiteSpace(value)
+            && forbiddenHostPatterns.Any(pattern => value!.Contains(pattern, StringComparison.OrdinalIgnoreCase));
+
+        var violations = GitHubRunnerDeployments().Values.SelectMany(deployment =>
+        {
+            var local = new List<string>();
+            var podSpec = ManifestNodeExtensions.Mapping(deployment.Root, "spec", "template", "spec");
+            if (podSpec is null)
+            {
+                return local;
+            }
+
+            // nodeName: pins the pod to a specific node by name.
+            var nodeName = ManifestNodeExtensions.Scalar(podSpec, "nodeName");
+            if (ContainsForbidden(nodeName))
+            {
+                local.Add($"{deployment.Name} sets nodeName='{nodeName}' which targets a forbidden operator-workstation host.");
+            }
+
+            // nodeSelector: dict of label → value pinning the pod to nodes
+            // carrying matching labels. Examples that would trip this:
+            //   kubernetes.io/hostname: bluejay-ws
+            //   flowercore.io/host: bluejay-ws.iamworkin.lan
+            var nodeSelector = ManifestNodeExtensions.Mapping(podSpec, "nodeSelector");
+            if (nodeSelector is not null)
+            {
+                foreach (var entry in nodeSelector.Children)
+                {
+                    var key = entry.Key is YamlScalarNode keyScalar ? keyScalar.Value : null;
+                    var value = entry.Value is YamlScalarNode valueScalar ? valueScalar.Value : null;
+                    if (ContainsForbidden(value))
+                    {
+                        local.Add($"{deployment.Name} has nodeSelector entry '{key}: {value}' which targets a forbidden operator-workstation host.");
+                    }
+                }
+            }
+
+            // nodeAffinity: matchExpressions over node labels.
+            foreach (var term in ManifestNodeExtensions.MappingSequence(podSpec, "affinity", "nodeAffinity", "requiredDuringSchedulingIgnoredDuringExecution", "nodeSelectorTerms"))
+            {
+                foreach (var expr in ManifestNodeExtensions.MappingSequence(term, "matchExpressions"))
+                {
+                    var key = ManifestNodeExtensions.Scalar(expr, "key");
+                    foreach (var valueNode in ManifestNodeExtensions.ScalarSequence(expr, "values"))
+                    {
+                        if (ContainsForbidden(valueNode))
+                        {
+                            local.Add($"{deployment.Name} has nodeAffinity matchExpression '{key}' value '{valueNode}' which targets a forbidden operator-workstation host.");
+                        }
+                    }
+                }
+            }
+
+            // tolerations: scheduling onto a tainted operator-workstation
+            // node would let the runner run there. Forbid any toleration
+            // value that names the workstation.
+            foreach (var toleration in ManifestNodeExtensions.MappingSequence(podSpec, "tolerations"))
+            {
+                var key = ManifestNodeExtensions.Scalar(toleration, "key");
+                var value = ManifestNodeExtensions.Scalar(toleration, "value");
+                if (ContainsForbidden(key))
+                {
+                    local.Add($"{deployment.Name} has toleration key '{key}' which targets a forbidden operator-workstation host.");
+                }
+                if (ContainsForbidden(value))
+                {
+                    local.Add($"{deployment.Name} has toleration value '{value}' which targets a forbidden operator-workstation host.");
+                }
+            }
+
+            return local;
+        }).ToList();
+
+        violations.Should().BeEmpty("BLUEJAY-WS / iamworkin-ws must never host a fleet GitHub Actions runner; see CLAUDE.md 'Registering BLUEJAY-WS as a fleet GitHub Actions runner' and feedback_bluejay_ws_never_public_runner.md");
+    }
+
     [Fact]
     public void Monitoring_MustAlertWhenLinuxRunnerDeploymentIsUnavailable()
     {
@@ -890,6 +997,22 @@ internal sealed record ManifestDocument(
             .ToList();
     }
 
+    // MainContainerMappings excludes initContainers. Use this when asserting
+    // properties of the primary container (env, image, volumeMounts) where an
+    // initContainer would be a false-positive match — e.g. the GitHub runner
+    // image's `setup-runner-home` initContainer should not count toward the
+    // single-container assertions on the runner deployments.
+    public IReadOnlyList<YamlMappingNode> MainContainerMappings()
+    {
+        var podSpec = PodSpec();
+        if (podSpec is null)
+        {
+            return Array.Empty<YamlMappingNode>();
+        }
+
+        return ManifestNodeExtensions.MappingSequence(podSpec, "containers").ToList();
+    }
+
     public IReadOnlyList<ContainerSpec> ContainerSpecs()
     {
         return ContainerMappings()

tests/bluejay-infra-lint/SignalControlPlatformManifestTests.cs

@@ -0,0 +1,51 @@
+using FluentAssertions;
+using Xunit;
+
+namespace BluejayInfraLint.Tests;
+
+[Trait("Category", "Unit")]
+public sealed class SignalControlPlatformManifestTests
+{
+    private static readonly string Root = ManifestInventory.Load().BluejayRoot;
+
+    [Fact]
+    public void Monitoring_PrometheusScrapesSignalControlPiAppAndPirelayNodeExporter()
+    {
+        var monitoring = File.ReadAllText(Path.Combine(Root, "apps", "monitoring", "noc-monitoring.yaml"));
+
+        monitoring.Should().Contain("job_name: \"signalcontrol-pi-app\"");
+        monitoring.Should().Contain("metrics_path: /metrics/prometheus");
+        monitoring.Should().Contain("targets: [\"10.0.58.113:5200\"]");
+        monitoring.Should().Contain("host: \"signal-a.iamworkin.lan\"");
+        monitoring.Should().Contain("targets: [\"10.0.58.113:9100\"]");
+        monitoring.Should().Contain("instance: \"pirelay\"");
+    }
+
+    [Fact]
+    public void Monitoring_GrafanaMountsSignalControlDashboard()
+    {
+        var monitoring = File.ReadAllText(Path.Combine(Root, "apps", "monitoring", "noc-monitoring.yaml"));
+        var dashboard = File.ReadAllText(Path.Combine(Root, "apps", "monitoring", "grafana-dashboard-signalcontrol.yaml"));
+
+        monitoring.Should().Contain("name: dashboards-signalcontrol");
+        monitoring.Should().Contain("mountPath: /var/lib/grafana/dashboards/signalcontrol");
+        monitoring.Should().Contain("name: grafana-dashboard-signalcontrol");
+        dashboard.Should().Contain("\"uid\": \"flowercore-signalcontrol\"");
+        dashboard.Should().Contain("signalcontrol_active_pattern");
+        dashboard.Should().Contain("signal_relay_writes_total");
+        dashboard.Should().Contain("node_cpu_seconds_total");
+    }
+
+    [Fact]
+    public void FcSignalControlReadme_DocumentsMtlsTelemetryAndDefaultOffAudit()
+    {
+        var readme = File.ReadAllText(Path.Combine(Root, "apps", "fc-signalcontrol", "README.md"));
+
+        readme.Should().Contain("step-ca-agent");
+        readme.Should().Contain("10.0.58.113:5200");
+        readme.Should().Contain("10.0.58.113:9100");
+        readme.Should().Contain("PhysicalAudit:Enabled=false");
+        readme.Should().Contain("ForwardingEnabled=false");
+        readme.Should().Contain("Secrets, enrollment codes, private keys");
+    }
+}