fix(use-case-compiler): increase LLM timeout to 45s, reduce batch to 5

Mac Mini M4 needs more time for qwen3:30b. Reduced batch from 10→5
MCs and increased timeout from 20→45s to give LLM a fair chance.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ai-compliance-sdk/internal/usecase/compiler_llm.go

@@ -31,7 +31,7 @@ type llmQuestion struct {
 }
 
 // maxLLMMCs limits how many MCs we send to the LLM in one batch.
-const maxLLMMCs = 10
+const maxLLMMCs = 5
 
 // GenerateQuestions generates questions for MCs using a single batched LLM call.
 func (g *LLMQuestionGenerator) GenerateQuestions(mcs []MCInfo, regulations []string) ([]Question, error) {
@@ -45,7 +45,7 @@ func (g *LLMQuestionGenerator) GenerateQuestions(mcs []MCInfo, regulations []str
 		batch = batch[:maxLLMMCs]
 	}
 
-	ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
+	ctx, cancel := context.WithTimeout(context.Background(), 45*time.Second)
 	defer cancel()
 
 	prompt := buildBatchPrompt(batch, regulations)