fix: address PR review comments for REST API call node

- Fix JSON formatting inconsistency in locale file (extra space before colon)
- Add i18n for hard-coded "Request URL" panel title
- Fix missing semicolon and space in KvListConfigComponent
- Add standalone: false to KvListConfigComponent for NgModule compatibility
- Fix misleading comment in TbRestApiCallNodeConfiguration.isValid()
- Always show readTimeoutMs field regardless of proxy settings

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rest/TbRestApiCallNodeConfiguration.java

@@ -57,7 +57,7 @@ public class TbRestApiCallNodeConfiguration implements NodeConfiguration<TbRestA
     @AssertTrue(message = "query parameter names and values must be non-null")
     public boolean isValid() {
         if (queryParams == null) {
-            return true; // @NotNull will handle this
+            return true; // null indicates legacy configuration; keep using old URL encoding logic
         }
         for (KeyValueEntry<String, String> queryParam : queryParams) {
             if (queryParam == null || queryParam.key() == null || queryParam.value() == null) {

ui-ngx/src/app/modules/home/components/rule-node/common/kv-list-config.component.ts

@@ -29,6 +29,7 @@ import { KvMapConfigOldComponent } from '@home/components/rule-node/common/kv-ma
   selector: 'tb-kv-list-config',
   templateUrl: './kv-map-config-old.component.html',
   styleUrls: ['./kv-map-config-old.component.scss'],
+  standalone: false,
   providers: [
     {
       provide: NG_VALUE_ACCESSOR,
@@ -42,7 +43,7 @@ import { KvMapConfigOldComponent } from '@home/components/rule-node/common/kv-ma
     }
   ]
 })
-export class KvListConfigComponent extends KvMapConfigOldComponent implements ControlValueAccessor, OnInit, Validator{
+export class KvListConfigComponent extends KvMapConfigOldComponent implements ControlValueAccessor, OnInit, Validator {
 
   override writeValue(kvList: any): void {
     const keyValsControls: Array<AbstractControl> = [];
@@ -51,7 +52,7 @@ export class KvListConfigComponent extends KvMapConfigOldComponent implements Co
         keyValsControls.push(this.fb.group({
           key: [property.key, [Validators.required]],
           value: [property.value, [Validators.required]]
-        }))
+        }));
       }
     }
     this.kvListFormGroup.setControl('keyVals', this.fb.array(keyValsControls), {emitEvent: false});

ui-ngx/src/app/modules/home/components/rule-node/external/rest-api-call-config.component.html

@@ -17,7 +17,7 @@
 -->
 <section [formGroup]="restApiCallConfigForm" class="flex flex-col gap-4">
   <div class="tb-form-panel stroked">
-    <div class="tb-form-panel-title">Request URL</div>
+    <div class="tb-form-panel-title" translate>rule-node-config.request-url</div>
     <mat-form-field class="mat-block" subscriptSizing="dynamic">
       <mat-label translate>rule-node-config.url</mat-label>
       <input required matInput formControlName="restEndpointUrlPattern">
@@ -129,8 +129,7 @@
             {{ 'rule-node-config.ignore-request-body' | translate }}
           </mat-slide-toggle>
         </div>
-        <mat-form-field *ngIf="restApiCallConfigForm.get('enableProxy').value" class="mat-block"
+        <mat-form-field class="mat-block" subscriptSizing="dynamic">
-                        subscriptSizing="dynamic">
           <mat-label translate>rule-node-config.read-timeout</mat-label>
           <input type="text" min="0" [max]="IntLimit" inputmode="numeric" pattern="[0-9]*" matInput formControlName="readTimeoutMs">
           <mat-hint translate>rule-node-config.read-timeout-hint</mat-hint>

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -5947,7 +5947,7 @@
         "tell-failure-aws-lambda-hint": "Rule node forces failure of message processing if AWS Lambda function execution raises exception.",
         "basic-mode": "Basic",
         "advanced-mode": "Advanced",
-        "url-hint" : "Enter the request URL. Ensure special characters are percent-encoded.",
+        "url-hint": "Enter the request URL. Ensure special characters are percent-encoded.",
         "query-params": "Query parameters",
         "query-params-hint": "Additional query parameters to include in the request URL. Both names and values support templatization and are strictly (RFC 3986) encoded after template resolution.",
         "query-params-empty": "No query parameters configured",
@@ -5956,6 +5956,7 @@
         "query-params-name-required": "Name is required",
         "query-params-value-required": "Value is required",
         "headers-empty": "No headers configured",
+        "request-url": "Request URL",
         "url": "URL",
         "save-time-series": {
             "processing-settings": "Processing settings",