fix(auth): accept both full_name and first_name+last_name for backward compatibility

RegisterPayload now accepts:
- full_name (single field, for old frontend clients)
- first_name + last_name (new format)

Error returned only if none of these are provided.

apps/users/src/handlers/auth.rs

@@ -35,8 +35,12 @@ pub fn router() -> Router<AppState> {
 
 #[derive(Deserialize)]
 pub struct RegisterPayload {
-    pub first_name: String,
+    #[serde(default)]
-    pub last_name:  String,
+    pub first_name: Option<String>,
+    #[serde(default)]
+    pub last_name:  Option<String>,
+    #[serde(default)]
+    pub full_name: Option<String>,
     pub email:     String,
     pub phone:     Option<String>,
     pub password:  String,
@@ -198,7 +202,11 @@ async fn register(
     let password_hash = hash_password(&payload.password)
         .map_err(|e| err(StatusCode::INTERNAL_SERVER_ERROR, &e.to_string(), "INTERNAL_ERROR"))?;
 
-    let full_name = format!("{} {}", payload.first_name.trim(), payload.last_name.trim()).trim().to_string();
+    let full_name = match (&payload.first_name, &payload.last_name, &payload.full_name) {
+        (Some(fn_), Some(ln_), _) => format!("{} {}", fn_.trim(), ln_.trim()).trim().to_string(),
+        (_, _, Some(fn_)) => fn_.trim().to_string(),
+        _ => return Err(err(StatusCode::UNPROCESSABLE_ENTITY, "first_name and last_name are required", "VALIDATION_ERROR")),
+    };
 
     let user = UserRepository::create(&state.pool, CreateUserPayload {
         name:       full_name,

k8s-migration-job.yaml

@@ -0,0 +1,33 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: nxtgauge-db-migrate
+  namespace: default
+  labels:
+    app: nxtgauge-db-migrate
+spec:
+  ttlSecondsAfterFinished: 300
+  backoffLimit: 3
+  template:
+    metadata:
+      labels:
+        app: nxtgauge-db-migrate
+    spec:
+      restartPolicy: OnFailure
+      containers:
+        - name: migrate
+          image: ghcr.io/traceworks2023/nxtgauge-db-migrate:high-performance-latest
+          imagePullPolicy: Always
+          envFrom:
+            - secretRef:
+                name: nxtgauge-backend-rust-secrets
+          env:
+            - name: MIGRATIONS_DIR
+              value: "/migrations"
+          resources:
+            requests:
+              memory: "64Mi"
+              cpu: "50m"
+            limits:
+              memory: "256Mi"
+              cpu: "500m"