ci: remove models not deployed on AI Core

The following models are not available on the HAI AI Core proxy and
were causing CI failures:
- claude-sonnet-4-6 (anthropic)
- gpt-4.1
- gpt-4.1-mini
- gpt-5-mini

Keep only gpt-5 which is confirmed working. Full multi-model support
will be restored when feat/aicore-provider-v2 is merged with native
AI Core provider.

.gitea/workflows/ci.yml

@@ -19,6 +19,7 @@ jobs:
       - run: go build -o review-bot ./cmd/review-bot
 
   # Self-review: builds from source since we're pre-release
+  # Note: Some models temporarily disabled until AI Core deployments available
   review:
     runs-on: ubuntu-24.04
     if: github.event_name == 'pull_request'
@@ -26,31 +27,11 @@ jobs:
     strategy:
       matrix:
         include:
-          - name: sonnet
-            token_secret: SONNET_REVIEW_TOKEN
-            provider: anthropic
-            llm_path: /anthropic/v1
-            model: claude-sonnet-4-6
           - name: gpt
             token_secret: GPT_REVIEW_TOKEN
             provider: openai
             llm_path: /openai/v1
             model: gpt-5
-          - name: gpt41
-            token_secret: GPT_REVIEW_TOKEN
-            provider: openai
-            llm_path: /openai/v1
-            model: gpt-4.1
-          - name: gpt5-mini
-            token_secret: GPT_REVIEW_TOKEN
-            provider: openai
-            llm_path: /openai/v1
-            model: gpt-5-mini
-          - name: gpt41-mini
-            token_secret: GPT_REVIEW_TOKEN
-            provider: openai
-            llm_path: /openai/v1
-            model: gpt-4.1-mini
           - name: security
             token_secret: SECURITY_REVIEW_TOKEN
             provider: openai