fix(cliproxy): migrate deprecated gemini-claude-* model names to upstream claude-* names (#515)

* fix(cliproxy): migrate deprecated gemini-claude-* model names to upstream claude-* names

CLIProxyAPI registry no longer recognizes the gemini-claude-* prefix convention.
Model names in catalog, base config, and user settings are migrated to upstream
claude-* names. Auto-migration in env-builder rewrites existing user settings on
load and persists the change.

Closes #513

* fix: address code review feedback — sync UI layer and add migration tests

- Sync UI isNativeGeminiModel() with backend (remove gemini-claude- exclusion)
- Update UI model catalog agy entries from gemini-claude-* to claude-*
- Update CI/CD workflow and code-reviewer default model names
- Add unit tests for migrateDeprecatedModelNames() logic

ui/src/lib/extended-context-utils.ts

@@ -8,14 +8,14 @@ export const EXTENDED_CONTEXT_SUFFIX = '[1m]';
 
 /**
  * Check if model is a native Gemini model (auto-enabled behavior).
- * Native Gemini models: gemini-* but NOT gemini-claude-*
+ * Native Gemini models have the gemini-* prefix.
  *
  * NOTE: This function is intentionally duplicated from src/cliproxy/model-catalog.ts
  * to avoid bundling backend code in the UI. Keep both in sync.
  */
 export function isNativeGeminiModel(modelId: string): boolean {
   const lower = modelId.toLowerCase();
-  return lower.startsWith('gemini-') && !lower.startsWith('gemini-claude-');
+  return lower.startsWith('gemini-');
 }
 
 /**

ui/src/lib/model-catalogs.ts

@@ -10,53 +10,53 @@ export const MODEL_CATALOGS: Record<string, ProviderCatalog> = {
   agy: {
     provider: 'agy',
     displayName: 'Antigravity',
-    defaultModel: 'gemini-claude-opus-4-6-thinking',
+    defaultModel: 'claude-opus-4-6-thinking',
     models: [
       {
-        id: 'gemini-claude-opus-4-6-thinking',
+        id: 'claude-opus-4-6-thinking',
         name: 'Claude Opus 4.6 Thinking',
         description: 'Latest flagship, extended thinking',
         // TODO: Re-enable when Antigravity backend supports 1M context (currently 256k)
         // extendedContext: true,
         extendedContext: false,
         presetMapping: {
-          default: 'gemini-claude-opus-4-6-thinking',
-          opus: 'gemini-claude-opus-4-6-thinking',
-          sonnet: 'gemini-claude-sonnet-4-5-thinking',
-          haiku: 'gemini-claude-sonnet-4-5',
+          default: 'claude-opus-4-6-thinking',
+          opus: 'claude-opus-4-6-thinking',
+          sonnet: 'claude-sonnet-4-5-thinking',
+          haiku: 'claude-sonnet-4-5',
         },
       },
       {
-        id: 'gemini-claude-opus-4-5-thinking',
+        id: 'claude-opus-4-5-thinking',
         name: 'Claude Opus 4.5 Thinking',
         description: 'Previous flagship, extended thinking',
         presetMapping: {
-          default: 'gemini-claude-opus-4-5-thinking',
-          opus: 'gemini-claude-opus-4-5-thinking',
-          sonnet: 'gemini-claude-sonnet-4-5-thinking',
-          haiku: 'gemini-claude-sonnet-4-5',
+          default: 'claude-opus-4-5-thinking',
+          opus: 'claude-opus-4-5-thinking',
+          sonnet: 'claude-sonnet-4-5-thinking',
+          haiku: 'claude-sonnet-4-5',
         },
       },
       {
-        id: 'gemini-claude-sonnet-4-5-thinking',
+        id: 'claude-sonnet-4-5-thinking',
         name: 'Claude Sonnet 4.5 Thinking',
         description: 'Balanced with extended thinking',
         presetMapping: {
-          default: 'gemini-claude-sonnet-4-5-thinking',
-          opus: 'gemini-claude-opus-4-6-thinking',
-          sonnet: 'gemini-claude-sonnet-4-5-thinking',
-          haiku: 'gemini-claude-sonnet-4-5',
+          default: 'claude-sonnet-4-5-thinking',
+          opus: 'claude-opus-4-6-thinking',
+          sonnet: 'claude-sonnet-4-5-thinking',
+          haiku: 'claude-sonnet-4-5',
         },
       },
       {
-        id: 'gemini-claude-sonnet-4-5',
+        id: 'claude-sonnet-4-5',
         name: 'Claude Sonnet 4.5',
         description: 'Fast and capable',
         presetMapping: {
-          default: 'gemini-claude-sonnet-4-5',
-          opus: 'gemini-claude-opus-4-6-thinking',
-          sonnet: 'gemini-claude-sonnet-4-5',
-          haiku: 'gemini-claude-sonnet-4-5',
+          default: 'claude-sonnet-4-5',
+          opus: 'claude-opus-4-6-thinking',
+          sonnet: 'claude-sonnet-4-5',
+          haiku: 'claude-sonnet-4-5',
         },
       },
       {