feat: Ollama qwen3:14b 기반 AI 뉴스 요약 + 텔레그램 통합 허브

- stock-lab: POST /api/stock/news/summarize 추가 (Ollama /api/generate 호출, 토큰/duration 추적)
- agent-office: telegram 패키지 분해 (client/formatter/messaging/webhook/router/agent_registry)
- send_agent_message 통합 API로 에이전트 중립 메시지 포맷 표준화
- 텔레그램 → 에이전트 명령 라우터 (/status, /stock news, /music credits 등)
- 토큰 사용량 집계 API 및 GET /agents/{id}/token-usage

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

agent-office/app/telegram/messaging.py

@@ -0,0 +1,68 @@
+"""고수준 메시지 전송 API."""
+import uuid
+from typing import Optional
+
+from ..config import TELEGRAM_CHAT_ID
+from ..db import save_telegram_callback
+from .client import _enabled, api_call
+from .formatter import MessageKind, format_agent_message
+
+
+async def send_raw(text: str, reply_markup: Optional[dict] = None) -> dict:
+    """가장 저수준. 원문 텍스트 그대로 전송."""
+    if not _enabled():
+        return {"ok": False, "message_id": None}
+    payload = {
+        "chat_id": TELEGRAM_CHAT_ID,
+        "text": text,
+        "parse_mode": "HTML",
+    }
+    if reply_markup:
+        payload["reply_markup"] = reply_markup
+    result = await api_call("sendMessage", payload)
+    return {
+        "ok": result.get("ok", False),
+        "message_id": result.get("result", {}).get("message_id") if result.get("ok") else None,
+    }
+
+
+async def send_agent_message(
+    agent_id: str,
+    kind: MessageKind,
+    title: str,
+    body: str,
+    task_id: Optional[str] = None,
+    actions: Optional[list] = None,
+    metadata: Optional[dict] = None,
+) -> dict:
+    """통합 에이전트 메시지 API. 모든 에이전트가 이걸 씀."""
+    text = format_agent_message(agent_id, kind, title, body, metadata)
+    reply_markup = None
+    if actions:
+        buttons = []
+        for action in actions:
+            cb_id = f"{action['action']}_{uuid.uuid4().hex[:8]}"
+            save_telegram_callback(cb_id, task_id or "", agent_id)
+            buttons.append({"text": action["label"], "callback_data": cb_id})
+        reply_markup = {"inline_keyboard": [buttons]}
+    return await send_raw(text, reply_markup)
+
+
+async def send_approval_request(
+    agent_id: str,
+    task_id: str,
+    title: str,
+    detail: str,
+) -> dict:
+    """승인/거절 단축 헬퍼."""
+    return await send_agent_message(
+        agent_id=agent_id,
+        kind="approval",
+        title=title,
+        body=detail,
+        task_id=task_id,
+        actions=[
+            {"label": "✅ 승인", "action": "approve"},
+            {"label": "❌ 거절", "action": "reject"},
+        ],
+    )