fix(trading-platform): add startupProbe to data-service, execute-service, and dashboard in customer1

- Grace period (failureThreshold: 30) for init (model load, DB, Redis).
- Resolves 0/1 Ready pods after rollout.
- Matches hermes-projects updates.
- Related to Kanban t_b6693eac

trading-platform/deploy/k8s/base/dashboard-deployment.yaml

@@ -41,6 +41,13 @@ spec:
             requests:
               cpu: "250m"
               memory: 256Mi
+          startupProbe:
+            httpGet:
+              path: /health
+              port: 3000
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            failureThreshold: 30
           livenessProbe:
             httpGet:
               path: /health

trading-platform/deploy/k8s/base/data-service-deployment.yaml

@@ -41,6 +41,13 @@ spec:
             requests:
               cpu: "500m"
               memory: 512Mi
+          startupProbe:
+            httpGet:
+              path: /health
+              port: 8001
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            failureThreshold: 30
           livenessProbe:
             httpGet:
               path: /health

trading-platform/deploy/k8s/base/execute-service-deployment.yaml

@@ -57,6 +57,13 @@ spec:
             requests:
               cpu: "250m"
               memory: 256Mi
+          startupProbe:
+            httpGet:
+              path: /health
+              port: 8000
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            failureThreshold: 30
           livenessProbe:
             httpGet:
               path: /health