fix: repair unescaped quotes in LLM JSON responses (#45)

fix: repair unescaped quotes in LLM JSON responses

Add repairJSON fallback that handles unescaped quotes in LLM string
values using first-valid-candidate heuristic with structural lookahead.

Reviewed-by: sonnet-review-bot
Reviewed-by: gpt-review-bot
Reviewed-by: security-review-bot

.gitea/workflows/ci.yml

@@ -28,12 +28,33 @@ jobs:
         include:
           - name: sonnet
             token_secret: SONNET_REVIEW_TOKEN
-            model: gpt-5
+            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
+            llm_path: /openai/v1
             model: gpt-5
             system_prompt_file: SECURITY_REVIEW.md
     steps:
@@ -49,9 +70,10 @@ jobs:
           PR_NUMBER: ${{ github.event.pull_request.number }}
           REVIEWER_TOKEN: ${{ secrets[matrix.token_secret] }}
           REVIEWER_NAME: ${{ matrix.name }}
-          LLM_BASE_URL: ${{ secrets.LLM_BASE_URL }}
+          LLM_BASE_URL: ${{ secrets.LLM_BASE_URL }}${{ matrix.llm_path }}
           LLM_API_KEY: ${{ secrets.LLM_API_KEY }}
           LLM_MODEL: ${{ matrix.model }}
+          LLM_PROVIDER: ${{ matrix.provider }}
           CONVENTIONS_FILE: "CONVENTIONS.md"
           PATTERNS_REPO: "rodin/go-patterns"
           PATTERNS_FILES: "README.md,patterns/"