fix(dashboard): align port to 3000 and probes to root path

- containerPort: 3000 (matches Next.js default + Dockerfile ENV PORT=3000)
- All probes (startup/liveness/readiness): path  (Next.js serves root when ready)
- Service targetPort: 3000

Fixes 'not ready' and 'can't reach it' (previous mismatch with 8000 + /api/health which didn't exist).

Live manifests updated (source of truth).

apps/base/customer1/trading-platform/dashboard/deployment.yaml

@@ -29,7 +29,7 @@ spec:
           image: ghcr.io/sirius0xdev/trading-dashboard:latest
           imagePullPolicy: Always
           ports:
-            - containerPort: 8000
+            - containerPort: 3000
               name: http
           resources:
             requests:
@@ -60,20 +60,20 @@ spec:
                   key: password
           startupProbe:
             httpGet:
-              path: /api/health
-              port: 8000
-            initialDelaySeconds: 15
+              path: /
+              port: 3000
+            initialDelaySeconds: 5
             periodSeconds: 10
             failureThreshold: 30
           livenessProbe:
             httpGet:
-              path: /api/health
-              port: 8000
-            initialDelaySeconds: 30
+              path: /
+              port: 3000
+            initialDelaySeconds: 15
             periodSeconds: 30
           readinessProbe:
             httpGet:
-              path: /api/health
-              port: 8000
+              path: /
+              port: 3000
             initialDelaySeconds: 5
             periodSeconds: 10

apps/base/customer1/trading-platform/dashboard/service.yaml

@@ -13,6 +13,6 @@ spec:
     app: trading-dashboard
   ports:
     - port: 80
-      targetPort: 8000
+      targetPort: 3000
       name: http
   type: ClusterIP