feat: Planner direct 모드 + Reviewer 검증

- direct 모드: Planner 직접 처리 → Reviewer 검증 → 완료 (2단계)
- tasks 모드: 기존대로 full pipeline (5단계)
- 대화 히스토리 embed 내용 포함 (clarify 맥락 유지)

api/discord_bot.py

@@ -382,12 +382,51 @@ async def _handle_task(message: discord.Message, text: str, ws):
         )
         pipeline.setup()
 
-        # 1. Plan
-        embed.title = "🔍 작업 분해 중..."
+        # 1. Plan (direct 모드면 Planner가 직접 처리)
+        embed.title = "🔍 분석 중..."
         embed.color = 0xF39C12
         await status_msg.edit(embed=embed)
 
         plan = await pipeline.plan(text)
+
+        # ── Direct 모드: Planner가 직접 처리 완료 ──
+        is_direct = plan.get("direct", False)
+        if isinstance(is_direct, str):
+            is_direct = is_direct.lower() in ("true", "yes")
+
+        if is_direct:
+            result_text = plan.get("result", plan.get("summary", "완료"))
+            direct_embed = discord.Embed(
+                title="✅ " + plan.get("summary", "처리 완료"),
+                description=result_text[:2000],
+                color=0x2ECC71,
+            )
+            await safe_send_embed(message.channel, direct_embed)
+
+            # Reviewer 검증
+            review_embed = discord.Embed(
+                title="🔍 리뷰어 검토 중...",
+                color=0xF39C12,
+            )
+            review_msg = await message.channel.send(embed=review_embed)
+
+            direct_tasks = [{"title": plan.get("summary", "직접 처리"), "description": result_text}]
+            review = await pipeline.batch_review(direct_tasks, [result_text])
+
+            passed = review.get("passed", True)
+            if isinstance(passed, str):
+                passed = passed.lower() in ("true", "yes", "pass")
+
+            review_embed.title = f"{'✅' if passed else '⚠️'} 리뷰 결과"
+            review_embed.description = review.get("summary", str(review))[:500]
+            review_embed.color = 0x2ECC71 if passed else 0xE74C3C
+            review_embed.set_footer(text=f"ID: {task_id} | {ws.name} | direct")
+            await review_msg.edit(embed=review_embed)
+
+            pipeline.docs.record_session(text, {"summary": result_text}, plan)
+            return
+
+        # ── Tasks 모드: Coder에게 분배 ──
         tasks = plan.get("tasks", [])
 
         if tasks: