feat(novita): add Novita AI provider preset

- Add novita preset with OpenAI-compatible endpoint
- Default model: deepseek/deepseek-v3.2
- Endpoint: https://api.novita.ai/openai
- API key via NOVITA_API_KEY env var

src/shared/provider-preset-catalog.ts

@@ -21,6 +21,7 @@ export const PROVIDER_PRESET_IDS = [
   'deepseek',
   'qwen',
   'ollama-cloud',
+  'novita',
 ] as const;
 
 export type ProviderPresetId = (typeof PROVIDER_PRESET_IDS)[number];
@@ -254,6 +255,20 @@ const RAW_PROVIDER_PRESET_DEFINITIONS: readonly ProviderPresetDefinition[] = [
     badge: 'Cloud',
     icon: '/icons/ollama.svg',
   },
+  {
+    id: 'novita',
+    name: 'Novita AI',
+    description: 'OpenAI-compatible API (Llama, Mistral, Qwen, and more)',
+    baseUrl: 'https://api.novita.ai/openai',
+    defaultProfileName: 'novita',
+    defaultModel: 'deepseek/deepseek-v3.2',
+    apiKeyPlaceholder: 'YOUR_NOVITA_API_KEY',
+    apiKeyHint: 'Get your API key at novita.ai',
+    category: 'alternative',
+    requiresApiKey: true,
+    badge: 'OpenAI-compatible',
+    icon: '/icons/novita.svg',
+  },
 ];
 
 function clonePresetDefinition(preset: ProviderPresetDefinition): ProviderPresetDefinition {

tests/unit/api/provider-presets-novita.test.ts

@@ -0,0 +1,35 @@
+import { describe, expect, it } from 'bun:test';
+import { getPresetById, isValidPresetId } from '../../../src/api/services/provider-presets';
+
+describe('provider-presets-novita', () => {
+  it('resolves novita preset id', () => {
+    const preset = getPresetById('novita');
+    expect(preset?.id).toBe('novita');
+    expect(preset?.baseUrl).toBe('https://api.novita.ai/openai');
+    expect(preset?.defaultProfileName).toBe('novita');
+  });
+
+  it('resolves novita preset with expected model IDs', () => {
+    const preset = getPresetById('novita');
+    expect(preset?.defaultModel).toBe('deepseek/deepseek-v3.2');
+  });
+
+  it('validates novita preset requires API key', () => {
+    const preset = getPresetById('novita');
+    expect(preset?.requiresApiKey).toBe(true);
+  });
+
+  it('treats novita as a valid preset id', () => {
+    expect(isValidPresetId('novita')).toBe(true);
+  });
+
+  it('handles whitespace in novita preset id', () => {
+    const preset = getPresetById('  novita  ');
+    expect(preset?.id).toBe('novita');
+  });
+
+  it('handles uppercase novita preset id', () => {
+    const preset = getPresetById('NOVITA');
+    expect(preset?.id).toBe('novita');
+  });
+});