Refactor: [3.0.0] Discord 전송을 n8n으로 이관, YouTube RSS → Data API 전환

- FastAPI에서 Discord 직접 전송 제거, 요약 결과를 JSON으로 반환
- app/discord.py 삭제, DISCORD_WEBHOOK_URL 환경변수 제거
- 에러 시 500 대신 200 + status: error로 응답 (n8n에서 분기 처리)
- CLAUDE.md에 n8n 워크플로우 노드별 상세 설정 문서화

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/config.py

@@ -3,7 +3,6 @@ from pydantic_settings import BaseSettings
 
 class Settings(BaseSettings):
     anthropic_api_key: str
-    discord_webhook_url: str
     api_secret: str = ""
 
     model_config = {"env_file": ".env", "extra": "ignore"}

app/discord.py

@@ -1,146 +0,0 @@
-import re
-from datetime import datetime, timezone
-
-import httpx
-
-from app.config import settings
-
-
-def _extract_video_id(video_url: str) -> str | None:
-    """URL에서 YouTube 비디오 ID 추출."""
-    patterns = [
-        r"(?:youtu\.be/)([^?&]+)",
-        r"(?:v=)([^?&]+)",
-    ]
-    for p in patterns:
-        m = re.search(p, video_url)
-        if m:
-            return m.group(1)
-    return None
-
-
-def _parse_summary(summary: str) -> dict[str, str]:
-    """요약 텍스트를 섹션별로 파싱."""
-    sections: dict[str, str] = {}
-    current_key = None
-    current_lines: list[str] = []
-
-    for line in summary.split("\n"):
-        # **한줄 요약**: ... 또는 ## 한줄 요약 형태 매칭
-        header_match = re.match(
-            r"^(?:##\s*|-\s*\*\*|\*\*)(한줄\s*요약|주요\s*내용|결론/?시사점)[:\*\s]*(.*)",
-            line,
-        )
-        if header_match:
-            if current_key:
-                sections[current_key] = "\n".join(current_lines).strip()
-            current_key = header_match.group(1).replace(" ", "")
-            rest = re.sub(r"^\*\*:?\s*", "", header_match.group(2)).strip()
-            current_lines = [rest] if rest else []
-        elif current_key is not None:
-            current_lines.append(line)
-
-    if current_key:
-        sections[current_key] = "\n".join(current_lines).strip()
-
-    return sections
-
-
-async def send_to_discord(
-    title: str, video_url: str, summary: str, channel_name: str = ""
-) -> None:
-    """Discord 웹훅으로 요약 전송 (임베드 디자인)."""
-    video_id = _extract_video_id(video_url)
-    thumbnail_url = (
-        f"https://img.youtube.com/vi/{video_id}/hqdefault.jpg"
-        if video_id
-        else None
-    )
-
-    sections = _parse_summary(summary)
-
-    oneliner = sections.get("한줄요약", "")
-    main_points = sections.get("주요내용", "")
-    conclusion = sections.get("결론/시사점", sections.get("결론시사점", ""))
-
-    # 파싱 실패 시 전체 텍스트를 그대로 사용
-    if not oneliner and not main_points:
-        fields = [{"name": "🔗 원본 영상", "value": video_url, "inline": False}]
-        description = summary[:4096]
-    else:
-        description = f"### 💡 {oneliner}" if oneliner else ""
-        fields = []
-        if main_points:
-            fields.append({
-                "name": "📋 주요 내용",
-                "value": main_points[:1024],
-                "inline": False,
-            })
-        if conclusion:
-            fields.append({
-                "name": "🎯 결론 / 시사점",
-                "value": conclusion[:1024],
-                "inline": False,
-            })
-        fields.append({
-            "name": "🔗 원본 영상",
-            "value": video_url,
-            "inline": False,
-        })
-
-    embed_title = f"📰 [{channel_name}] {title}" if channel_name else f"📰 {title}"
-
-    embed = {
-        "title": embed_title,
-        "url": video_url,
-        "description": description,
-        "color": 0x2B2D31,
-        "fields": fields,
-        "footer": {
-            "text": f"YouTube 뉴스 요약 봇 • {channel_name}" if channel_name else "YouTube 뉴스 요약 봇",
-            "icon_url": "https://www.youtube.com/s/desktop/f5ced909/img/favicon_144x144.png",
-        },
-        "timestamp": datetime.now(timezone.utc).isoformat(),
-    }
-
-    if thumbnail_url:
-        embed["thumbnail"] = {"url": thumbnail_url}
-
-    payload = {"embeds": [embed]}
-
-    async with httpx.AsyncClient(timeout=30.0) as client:
-        resp = await client.post(settings.discord_webhook_url, json=payload)
-        resp.raise_for_status()
-
-
-async def send_error_to_discord(
-    title: str, video_url: str, error: Exception, channel_name: str = ""
-) -> None:
-    """에러 발생 시 Discord 웹훅으로 에러 내용 전송."""
-    error_type = type(error).__name__
-    error_msg = str(error)[:1024]
-
-    error_title = f"❌ [{channel_name}] 뉴스 요약 실패" if channel_name else "❌ 뉴스 요약 실패"
-
-    fields = []
-    if channel_name:
-        fields.append({"name": "채널", "value": channel_name, "inline": True})
-    fields.extend([
-        {"name": "영상 제목", "value": title or "(제목 없음)", "inline": False},
-        {"name": "영상 URL", "value": video_url, "inline": False},
-        {"name": "에러 타입", "value": f"`{error_type}`", "inline": True},
-        {"name": "에러 내용", "value": f"```\n{error_msg}\n```", "inline": False},
-    ])
-
-    embed = {
-        "title": error_title,
-        "color": 0xED4245,
-        "fields": fields,
-        "footer": {"text": f"YouTube 뉴스 요약 봇 - 에러 알림 • {channel_name}" if channel_name else "YouTube 뉴스 요약 봇 - 에러 알림"},
-        "timestamp": datetime.now(timezone.utc).isoformat(),
-    }
-
-    payload = {"embeds": [embed]}
-
-    async with httpx.AsyncClient(timeout=30.0) as client:
-        await client.post(settings.discord_webhook_url, json=payload)

app/main.py

@@ -2,7 +2,6 @@ from fastapi import FastAPI, Header, HTTPException
 from pydantic import BaseModel
 
 from app.config import settings
-from app.discord import send_error_to_discord, send_to_discord
 from app.summarizer import summarize
 from app.transcript import SkipVideo, extract_video_id, fetch_transcript
 
@@ -12,7 +11,6 @@ app = FastAPI(title="News Summary Bot")
 class SummarizeRequest(BaseModel):
     video_url: str
     title: str = ""
-    channel_name: str = ""
 
 
 @app.post("/summarize")
@@ -24,20 +22,22 @@ async def summarize_video(
         raise HTTPException(status_code=401, detail="Unauthorized")
 
     title = req.title or "제목 없음"
-    channel_name = req.channel_name or ""
 
     try:
         video_id = extract_video_id(req.video_url)
         transcript = fetch_transcript(video_id)
         summary = summarize(transcript, title)
-        await send_to_discord(title, req.video_url, summary, channel_name)
     except SkipVideo as e:
         return {"status": "skipped", "title": title, "reason": str(e)}
     except Exception as e:
-        await send_error_to_discord(title, req.video_url, e, channel_name)
-        raise HTTPException(status_code=500, detail=str(e))
+        return {
+            "status": "error",
+            "title": title,
+            "error_type": type(e).__name__,
+            "error_message": str(e),
+        }
 
-    return {"status": "ok", "title": title, "summary_length": len(summary)}
+    return {"status": "ok", "title": title, "summary": summary}
 
 
 @app.get("/health")