chore(studio): reorder deployment tab options (ASTD-578)

web/packages/studio/e2e-tests/deployments.test.ts

@@ -90,11 +90,15 @@ test.describe('Model Deployments', () => {
     await test.step('Open Create Deployment side panel', async () => {
       await page.getByRole('button', { name: 'Create Deployment' }).first().click();
 
-      // NGC is the default source. The Deploy submit button only renders inside the open panel.
+      // The Deploy submit button only renders inside the open panel.
       await expect(page.getByRole('button', { name: 'Deploy', exact: true })).toBeVisible();
     });
 
     await test.step('Fill the NGC NIM Container form', async () => {
+      // Select the source explicitly rather than relying on which one the wizard
+      // preselects — this test covers the NGC path, not the default.
+      await page.getByRole('radio', { name: 'NGC NIM Container' }).click();
+
       const nameField = page.getByRole('textbox', { name: 'Name', exact: true });
       // The wizard pre-fills a generated name; clear it before typing.
       await nameField.fill(baseName);

web/packages/studio/src/routes/DeploymentsListRoute/CreateDeploymentSidePanel/index.tsx

@@ -193,9 +193,9 @@ export const CreateDeploymentSidePanel: FC<CreateDeploymentSidePanelProps> = ({
             });
           }}
           items={[
-            { value: SOURCE_NGC, children: 'NGC NIM Container' },
             { value: SOURCE_HF, children: 'HuggingFace' },
             { value: SOURCE_WORKSPACE, children: 'Workspace' },
+            { value: SOURCE_NGC, children: 'NGC NIM Container' },
           ]}
         />
         {(source === SOURCE_HF || source === SOURCE_WORKSPACE) && (

web/packages/studio/src/routes/DeploymentsListRoute/CreateDeploymentSidePanel/schema.test.ts

@@ -9,6 +9,7 @@ import {
   defaultWizardValues,
   deploymentNameFromWizardBaseName,
   engineRequiresImage,
+  sourceSupportsEngineChoice,
   WORKSPACE_PICKER_FILESET,
   WORKSPACE_PICKER_MODEL,
   SOURCE_HF,
@@ -61,9 +62,9 @@ describe('additionalEnvsFormToApi', () => {
 });
 
 describe('defaultWizardValues', () => {
-  it('returns NGC source with defaults', () => {
+  it('returns HuggingFace source with defaults', () => {
     const vals = defaultWizardValues();
-    expect(vals.source).toBe(SOURCE_NGC);
+    expect(vals.source).toBe(SOURCE_HF);
     expect(vals.gpu).toBe(1);
     expect(vals.loraEnabled).toBe(true);
     expect(typeof vals.name).toBe('string');
@@ -74,6 +75,12 @@ describe('defaultWizardValues', () => {
     expect(defaultWizardValues().engine).toBe(Engine.vllm);
     expect(engineRequiresImage(Engine.vllm)).toBe(false);
   });
+
+  it('defaults to a source that actually reads the default engine', () => {
+    // The NGC source overrides `engine` to `nim` when building its request, so
+    // an NGC default made `engine: vllm` unreachable without switching tabs.
+    expect(sourceSupportsEngineChoice(defaultWizardValues().source)).toBe(true);
+  });
 });
 
 describe('engine image requirements', () => {

web/packages/studio/src/routes/DeploymentsListRoute/CreateDeploymentSidePanel/schema.ts

@@ -108,7 +108,7 @@ function requireImageForEngine(
 
 export const createDeploymentWizardSchema = z
   .object({
-    source: z.enum([SOURCE_NGC, SOURCE_HF, SOURCE_WORKSPACE]),
+    source: z.enum([SOURCE_HF, SOURCE_WORKSPACE, SOURCE_NGC]),
     /** Base name: NGC NIM `model_name`, and API deployment/config become `<name>-deployment` / `<name>-config`. */
     name: wizardBaseNameSchema,
     /** Inference engine. Ignored for the NGC source, which is always a NIM container. */
@@ -191,7 +191,11 @@ export const createDeploymentWizardSchema = z
 export type WizardFormValues = z.infer<typeof createDeploymentWizardSchema>;
 
 export const defaultWizardValues = (): WizardFormValues => ({
-  source: SOURCE_NGC,
+  // Matches the leftmost segment in the panel's source control. HuggingFace is
+  // also the only default that agrees with `engine` below: the NGC source
+  // ignores the engine entirely, so defaulting to it left the two defaults
+  // describing different deployments.
+  source: SOURCE_HF,
   name: generateDefaultName(),
   // vLLM serves any architecture from a model-agnostic default image, so it is
   // the safe default for the sources that expose the picker. The NGC source