feat: upgrade MiniMax models from M2.5 to M2.7

Update MiniMax model IDs from MiniMax-M2.5/M2.5-highspeed to the
latest MiniMax-M2.7/M2.7-highspeed across the web UI and CLI wiki tool.

- Update default model in types.ts and settings-service.ts
- Update available models list in getAvailableModels()
- Update UI placeholder text in SettingsPanel.tsx
- Update default wiki model in llm-client.ts and wiki.ts CLI
- Update unit tests to reflect new model IDs

gitnexus-web/src/components/SettingsPanel.tsx

@@ -828,14 +828,14 @@ export const SettingsPanel = ({
                 onToggleVisibility: () => toggleApiKeyVisibility('minimax'),
               }}
               model={{
-                value: settings.minimax?.model ?? 'MiniMax-M2.5',
-                placeholder: 'e.g., MiniMax-M2.5, MiniMax-M2.5-highspeed',
+                value: settings.minimax?.model ?? 'MiniMax-M2.7',
+                placeholder: 'e.g., MiniMax-M2.7, MiniMax-M2.7-highspeed',
                 onChange: (value) =>
                   setSettings((prev) => ({
                     ...prev,
                     minimax: { ...prev.minimax!, model: value },
                   })),
-                helperText: 'Available: MiniMax-M2.5 (default), MiniMax-M2.5-highspeed (faster)',
+                helperText: 'Available: MiniMax-M2.7 (default), MiniMax-M2.7-highspeed (faster)',
               }}
             />
           )}

gitnexus-web/src/core/llm/settings-service.ts

@@ -394,7 +394,7 @@ export const getAvailableModels = (provider: LLMProvider): string[] => {
     case 'ollama':
       return ['llama3.2', 'llama3.1', 'mistral', 'codellama', 'deepseek-coder'];
     case 'minimax':
-      return ['MiniMax-M2.5', 'MiniMax-M2.5-highspeed'];
+      return ['MiniMax-M2.7', 'MiniMax-M2.7-highspeed'];
     case 'glm':
       return ['GLM-5', 'GLM-5-Turbo', 'GLM-4.7', 'GLM-4.5'];
     default:

gitnexus-web/src/core/llm/types.ts

@@ -93,7 +93,7 @@ export interface OpenRouterConfig extends BaseProviderConfig {
 export interface MiniMaxConfig extends BaseProviderConfig {
   provider: 'minimax';
   apiKey: string;
-  model: string; // e.g., 'MiniMax-M2.5', 'MiniMax-M2.5-highspeed'
+  model: string; // e.g., 'MiniMax-M2.7', 'MiniMax-M2.7-highspeed'
 }
 
 /**
@@ -188,7 +188,7 @@ export const DEFAULT_LLM_SETTINGS: LLMSettings = {
   },
   minimax: {
     apiKey: '',
-    model: 'MiniMax-M2.5',
+    model: 'MiniMax-M2.7',
     temperature: 0.1,
   },
   glm: {

gitnexus/src/cli/wiki.ts

@@ -296,7 +296,7 @@ export const wikiCommand = async (inputPath?: string, options?: WikiCommandOptio
         // OpenAI-compatible provider (OpenAI, OpenRouter, Custom)
         if (choice === '2') {
           baseUrl = 'https://openrouter.ai/api/v1';
-          defaultModel = 'minimax/minimax-m2.5';
+          defaultModel = 'minimax/minimax-m2.7';
           provider = 'openrouter';
         } else if (choice === '4') {
           baseUrl = await prompt('  Base URL (e.g. http://localhost:11434/v1): ');

gitnexus/src/core/wiki/llm-client.ts

@@ -58,7 +58,7 @@ export async function resolveLLMConfig(overrides?: Partial<LLMConfig>): Promise<
       process.env.GITNEXUS_MODEL ||
       (savedConfig.provider === 'cursor' ? savedConfig.cursorModel : undefined) ||
       savedConfig.model ||
-      'minimax/minimax-m2.5',
+      'minimax/minimax-m2.7',
     maxTokens: overrides?.maxTokens ?? 16_384,
     temperature: overrides?.temperature ?? 0,
     provider: overrides?.provider ?? savedConfig.provider ?? 'openai',

gitnexus/test/unit/wiki-flags.test.ts

@@ -125,7 +125,7 @@ describe('resolveLLMConfig', () => {
     const config = await resolveLLMConfig();
 
     expect(config.provider).toBe('openai');
-    expect(config.model).toBe('minimax/minimax-m2.5');
+    expect(config.model).toBe('minimax/minimax-m2.7');
     expect(config.baseUrl).toBe('https://openrouter.ai/api/v1');
   });
 

gitnexus/test/unit/wiki-llm-client.test.ts

@@ -53,7 +53,7 @@ describe('isReasoningModel', () => {
   });
 
   it('returns false for minimax', () => {
-    expect(isReasoningModel('minimax/minimax-m2.5')).toBe(false);
+    expect(isReasoningModel('minimax/minimax-m2.7')).toBe(false);
   });
 
   it('respects explicit override', () => {