docs: ColdmailState에 user_id, start_time, now 필드 추가

- ColdmailState에 user_id: str, start_time: str, now: str 추가
- coldmail_briefing.py:86-101 유지 (user_id, start_time, now 계산)
- initial_state에 user_id, start_time.isoformat(), now.isoformat() 포함
- 각 노드에서 state["user_id"], state["start_time"], state["now"] 접근
- send_summary_node에서 datetime.fromisoformat() 변환
- 96줄 유지

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

troubleshooting/251014_coldmail_ir_analysis_scenario.md

@@ -72,20 +72,20 @@
 - requirements.txt: langgraph 추가
 - app/workflows/__init__.py: 빈 파일 생성
 - app/workflows/coldmail_workflow.py 생성:
-  - from typing import TypedDict; from langgraph.graph import StateGraph, END; import aiohttp
-  - class ColdmailState(TypedDict): emails: list, coldmail_candidates: list, processed_results: list
-  - async def fetch_emails_node(state): async with aiohttp.ClientSession() as session 내부에서 coldmail_briefing.py:103-121 로직 실행, return {"emails": emails}
+  - from typing import TypedDict; from langgraph.graph import StateGraph, END; import aiohttp; from datetime import datetime
+  - class ColdmailState(TypedDict): emails: list, coldmail_candidates: list, processed_results: list, user_id: str, start_time: str, now: str
+  - async def fetch_emails_node(state): user_id = state["user_id"], start_time/now = state["start_time/now"], async with aiohttp.ClientSession() as session, params에 user_id/startSearchDate(start_time)/endSearchDate(now) 사용, coldmail_briefing.py:103-121 로직, return {"emails": emails}
   - async def filter_coldmail_node(state): for email in state["emails"] 반복, coldmail_briefing.py:125-139 필터 로직, return {"coldmail_candidates": candidates}
-  - async def process_email_node(state): async with aiohttp.ClientSession() as session 내부에서 for email in state["coldmail_candidates"] 반복, coldmail_briefing.py:145-287 처리, try-except로 IR 실패 시 continue, return {"processed_results": results}
-  - async def send_summary_node(state): async with aiohttp.ClientSession() as session, coldmail_briefing.py:289-300 요약 전송
+  - async def process_email_node(state): user_id = state["user_id"], async with aiohttp.ClientSession() as session, for email in state["coldmail_candidates"] 반복, detail_params/process_naverworks_attachments/get_team_uuid_from_user에 user_id 사용, coldmail_briefing.py:145-202 처리, try-except로 IR 실패 시 continue, return {"processed_results": results}
+  - async def send_summary_node(state): start_time = datetime.fromisoformat(state["start_time"]), now = datetime.fromisoformat(state["now"]), async with aiohttp.ClientSession() as session, summary_text 포맷에 start_time.strftime/now.strftime 사용, coldmail_briefing.py:205-215 요약 전송
   - def route_after_filter(state): return "process" if state["coldmail_candidates"] else END
-  - graph = StateGraph(ColdmailState)
-  - graph.add_node("fetch", fetch_emails_node), add_node("filter", filter_coldmail_node), add_node("process", process_email_node), add_node("send", send_summary_node)
+  - graph = StateGraph(ColdmailState); graph.add_node("fetch", fetch_emails_node), add_node("filter", filter_coldmail_node), add_node("process", process_email_node), add_node("send", send_summary_node)
   - graph.add_edge("fetch", "filter"), add_conditional_edges("filter", route_after_filter, {"process": "process", END: END}), add_edge("process", "send"), add_edge("send", END)
   - workflow = graph.compile()
 - coldmail_briefing.py:78-302: _run_coldmail_briefing() 교체
+  - coldmail_briefing.py:86-101 유지 (now, start_time, user_id 계산)
   - from app.workflows.coldmail_workflow import workflow
-  - initial_state = {"emails": [], "coldmail_candidates": [], "processed_results": []}
+  - initial_state = {"emails": [], "coldmail_candidates": [], "processed_results": [], "user_id": user_id, "start_time": start_time.isoformat(), "now": now.isoformat()}
   - result = await workflow.ainvoke(initial_state)
 
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