fix: add JWT_SECRET_KEY to execute-service deployment via SOPS-encrypted secret

- Create execute-service-secret (SOPS encrypted) with JWT_SECRET_KEY
- Wire JWT_SECRET_KEY env var in execute-service deployment
- Fixes CrashLoopBack caused by missing JWT_SECRET_KEY validation error

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

@@ -45,6 +45,11 @@ spec:
                 secretKeyRef:
                   name: trading-db-credentials
                   key: password
+            - name: JWT_SECRET_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: execute-service-secret
+                  key: JWT_SECRET_KEY
           resources:
             limits:
               cpu: "500m"

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

@@ -0,0 +1,34 @@
+apiVersion: v1
+kind: Secret
+metadata:
+    name: execute-service-secret
+    namespace: customer1
+    labels:
+        app: execute-service
+        app.kubernetes.io/name: execute-service
+type: Opaque
+stringData:
+    #ENC[AES256_GCM,data:cufebjrvQzeId2s78yHMCbP5,iv:sDAICkKMSOMTe2p+YZTudEGd0Y0vVVa4kf0qAE/2YPA=,tag:Sh1FtsV5LInk/L8dV+gJgg==,type:comment]
+    DB_PASSWORD: ENC[AES256_GCM,data:v8j+WH2Ix/uSoTUkm8gGGFavmlual+s=,iv:SsuW8bqGh9hU30Vg6+bOIV6KVadYFh3mkbwlAnpXUa4=,tag:BBMJ+beHsCL58Rg7csyjHw==,type:str]
+    #ENC[AES256_GCM,data:0Kp12yECmB0AOi2Hw2gTVK2TVKGrzTKul3kjbfdgnoouSETiAOdKnNI=,iv:JX7ea/tX88VvfYyfx5SxXSHzvXox2o1SPjG2PtStLQk=,tag:PwjxiNu+MoabsJy45BJPBA==,type:comment]
+    JWT_SECRET_KEY: ENC[AES256_GCM,data:qJFRby3voYIwonaI4DL1T4jG/q85dj2Q5KuSN5IYQONjsV7YUkZls3Q8H17oV58EfFhKVlF0gMYaypjFH9n4YA==,iv:QHJ3BJ2yAfaa+POx9/Cv3ASuwL/4wOg9R5AaYgalYgI=,tag:cGWxyTJFcrKBj1j8Ylr9lw==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1uuxf066xuuqgvjppxfcmqkwfcufnwp3wcwnl9h20g9k4l8nkw9jsaungf7
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB3WFdpY0VRQmliak4xVS8x
+            aGpORnYrZ2daZGFMMzRCOTh0a0lhanlKYmxrClR2VXRHVVliRVJMRUxKVkt0Y0Vw
+            VzZCenFtWmVoVkZqcFFYVlY3UjQxSzAKLS0tIFFZanArYU5PZFJlSitvMitzNUNI
+            YTNhdTdReG1maS91akdsbis0TFF3TXcKEvp821cnrAM4jITpiacbyxoE24FZhQ6O
+            PsDEpqRo2ck1aWDJROMV9HAlgxjIWzptJUNorP21m7/5TbgPGwjXnQ==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2026-05-25T01:24:10Z"
+    mac: ENC[AES256_GCM,data:1Xp5acLJaMux3itDF8Fyrz8YY0+YzF0OsWkDXLUffUG8ALKuMTT8IhFE4Nc5+gb8Bc8kfcx5VSNyCm9vKzcvYNwc/EHpe9CSZz5z2uHz1QQDZ5mK/4lbukpDEJhy9syb80TxulOwfrNbWwv1vnilN1uMT00lJKO9IXe3WbJ17qc=,iv:ZCc21Z41+HRX/qmgHgvvUFu+I8awN6+7UkSAhWLImXk=,tag:We4MhHcagW5bBiFtGo1yKQ==,type:str]
+    pgp: []
+    encrypted_regex: ^(data|stringData)$
+    version: 3.9.0