refactor(agent-office): drop the random idle→break→idle cycle

The pixel-office game UI is gone, so simulating coffee-break /
nap / walk states no longer serves any purpose. Remove:
- scheduler's _check_idle_breaks job (no more 60s idle scan)
- BaseAgent.check_idle_break() and _break_until field
- 'break' from VALID_STATES and from transition() branches
- IDLE_BREAK_THRESHOLD / BREAK_DURATION_MIN / BREAK_DURATION_MAX
  config knobs
- 'idle/break' guard in each agent's on_schedule (now just 'idle')

Agents now sit in 'idle' between scheduled jobs and explicit
commands. Display reads 'Idle' instead of churning between idle
and break.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

agent-office/app/agents/base.py

@@ -1,12 +1,9 @@
-import asyncio
-import random
 import time
 from typing import Optional
 
-from ..config import IDLE_BREAK_THRESHOLD, BREAK_DURATION_MIN, BREAK_DURATION_MAX
 from ..db import add_log
 
-VALID_STATES = ("idle", "working", "waiting", "reporting", "break")
+VALID_STATES = ("idle", "working", "waiting", "reporting")
 
 class BaseAgent:
     agent_id: str = ""
@@ -14,7 +11,6 @@ class BaseAgent:
     state: str = "idle"
     state_detail: str = ""
     _idle_since: float = 0.0
-    _break_until: float = 0.0
     _ws_manager = None
 
     def __init__(self):
@@ -32,9 +28,6 @@ class BaseAgent:
 
         if new_state == "idle":
             self._idle_since = time.time()
-        elif new_state == "break":
-            duration = random.randint(BREAK_DURATION_MIN, BREAK_DURATION_MAX)
-            self._break_until = time.time() + duration
 
         add_log(self.agent_id, f"State: {old} -> {new_state} ({detail})")
 
@@ -48,19 +41,6 @@ class BaseAgent:
                 await self._ws_manager.send_notification(
                     self.agent_id, "task_completed", task_id, detail or "작업 완료"
                 )
-            if new_state == "break":
-                await self._ws_manager.send_agent_move(self.agent_id, "break_room")
-            elif old == "break" and new_state == "idle":
-                await self._ws_manager.send_agent_move(self.agent_id, "desk")
-
-    async def check_idle_break(self) -> None:
-        now = time.time()
-        if self.state == "idle" and (now - self._idle_since) > IDLE_BREAK_THRESHOLD:
-            if random.random() < 0.5:
-                break_type = random.choice(["커피 타임", "잠깐 산책", "졸고 있음"])
-                await self.transition("break", break_type)
-        elif self.state == "break" and now > self._break_until:
-            await self.transition("idle", "휴식 완료")
 
     async def on_schedule(self) -> None:
         raise NotImplementedError

agent-office/app/agents/insta.py

@@ -46,7 +46,7 @@ class InstaAgent(BaseAgent):
     async def on_schedule(self) -> None:
         """09:30 매일: 뉴스 수집 → 키워드 추출 → 텔레그램 후보 푸시.
         custom_config.auto_select=True면 카테고리당 1위 키워드 자동 슬레이트 생성."""
-        if self.state not in ("idle", "break"):
+        if self.state != "idle":
             return
         config = get_agent_config(self.agent_id) or {}
         custom = config.get("custom_config", {}) or {}

agent-office/app/agents/lotto.py

@@ -8,7 +8,7 @@ class LottoAgent(BaseAgent):
     display_name = "로또 큐레이터"
 
     async def on_schedule(self) -> None:
-        if self.state not in ("idle", "break"):
+        if self.state != "idle":
             return
         await self._run(source="auto")
 

agent-office/app/agents/stock.py

@@ -44,7 +44,7 @@ class StockAgent(BaseAgent):
     display_name = "주식 트레이더"
 
     async def on_schedule(self) -> None:
-        if self.state not in ("idle", "break"):
+        if self.state != "idle":
             return
 
         task_id = create_task(self.agent_id, "news_summary", {"limit": 15})
@@ -129,7 +129,7 @@ class StockAgent(BaseAgent):
           4) status=='success' → telegram_payload.text 를 parse_mode 그대로 전송
           5) 예외/실패 → 운영자에게 별도 텔레그램 알림 (HTML)
         """
-        if self.state not in ("idle", "break"):
+        if self.state != "idle":
             return
 
         task_id = create_task(self.agent_id, "screener_run", {"mode": "auto"})
@@ -243,7 +243,7 @@ class StockAgent(BaseAgent):
           4) failures > 30% → 경고 알림 후 메인 메시지 발송
           5) 정상 → Top 5 호재/악재 메시지 발송 (MarkdownV2)
         """
-        if self.state not in ("idle", "break"):
+        if self.state != "idle":
             return
 
         task_id = create_task(self.agent_id, "ai_news_sentiment", {})