fix(code_review_agent): replace broken manual JSON parse with call_llm_for_json; remove unused call_llm import

app/agents/code_review_agent.py

@@ -2,7 +2,7 @@ from app.core.logger import get_logger
 
 import os
 from app.tools.file_scanner import get_python_files
-from app.core.llm import call_llm, call_llm_for_json
+from app.core.llm import call_llm_for_json
 from app.core.prompts import CODE_REVIEW_PROMPT
 from app.models.review import ReviewSuggestions
 from app.models.repository import RepositoryMetadata
@@ -35,21 +35,10 @@ async def run(local_path: str, metadata: RepositoryMetadata) -> ReviewSuggestion
             overall_score=0.0
         )
 
-    # Step 3 - Call LLM
+    # Step 3 - Call LLM and parse JSON in one shot
     source_code = "\n\n".join(source_samples)
     prompt = CODE_REVIEW_PROMPT.format(source_code=source_code)
-    llm_response = await call_llm(prompt)
-
-    # Step 4 - Parse response
-    try:
-        cleaned = llm_response.strip().removeprefix("```json").removeprefix("```").removesuffix("```").strip()
-        llm_data = json.loads(cleaned)
-    except json.JSONDecodeError:
-        logger.error(
-            "Failed to parse LLM response as JSON",
-            extra={"raw_response": llm_response[:500]},
-        )
-        llm_data = await call_llm_for_json(prompt)
+    llm_data = await call_llm_for_json(prompt)
 
     review = ReviewSuggestions(
         solid_violations=llm_data.get("solid_violations", []),