AI Coach 백엔드 프록시 추가 및 trade 엔드포인트 인증 적용

- POST /api/stock/ai-coach: Anthropic API 프록시 (API 키 서버 보관)
- trade/balance, trade/order: ADMIN_API_KEY 헤더 인증 추가
- print() → logging 모듈 전환 (stock-lab)
- .env.example: ADMIN_API_KEY, ANTHROPIC_API_KEY, CORS_ALLOW_ORIGINS 추가

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

.env.example

@@ -50,3 +50,12 @@ PGID=1000
 
 # Windows AI Server (NAS 입장에서 바라본 Windows PC IP)
 WINDOWS_AI_SERVER_URL=http://192.168.45.59:8000
+
+# Admin API Key (trade/order 등 민감 엔드포인트 보호, 미설정 시 인증 비활성화)
+ADMIN_API_KEY=
+
+# Anthropic API Key (AI Coach 프록시, 미설정 시 AI Coach 비활성화)
+ANTHROPIC_API_KEY=
+
+# CORS 허용 도메인 (콤마 구분)
+CORS_ALLOW_ORIGINS=https://gahusb.synology.me,http://localhost:3007,http://localhost:8080

stock-lab/app/main.py

@@ -1,14 +1,18 @@
 import os
 import json
+import logging
 from datetime import date as date_type
 from typing import Optional
-from fastapi import FastAPI, Query
+from fastapi import FastAPI, Query, Header, Depends, HTTPException
 from fastapi.responses import JSONResponse
 from fastapi.middleware.cors import CORSMiddleware
 import requests
 from apscheduler.schedulers.background import BackgroundScheduler
 from pydantic import BaseModel
 
+logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(name)s] %(levelname)s %(message)s")
+logger = logging.getLogger("stock-lab")
+
 from .db import (
     init_db, save_articles, get_latest_articles,
     add_portfolio_item, get_all_portfolio, get_portfolio_item,
@@ -37,6 +41,19 @@ scheduler = BackgroundScheduler(timezone=os.getenv("TZ", "Asia/Seoul"))
 # Windows AI Server URL (NAS .env에서 설정)
 WINDOWS_AI_SERVER_URL = os.getenv("WINDOWS_AI_SERVER_URL", "http://192.168.0.5:8000")
 
+# Admin API Key 인증
+ADMIN_API_KEY = os.getenv("ADMIN_API_KEY", "")
+
+def verify_admin(x_admin_key: str = Header(None)):
+    """admin/trade 엔드포인트 보호용 API 키 검증"""
+    if not ADMIN_API_KEY:
+        return  # 키 미설정 시 인증 비활성화 (개발 환경)
+    if x_admin_key != ADMIN_API_KEY:
+        raise HTTPException(status_code=401, detail="Unauthorized")
+
+# Anthropic API 프록시용 키 (서버 측 보관)
+ANTHROPIC_API_KEY = os.getenv("ANTHROPIC_API_KEY", "")
+
 # 공휴일 목록 로드
 _HOLIDAYS_PATH = os.path.join(os.path.dirname(__file__), "holidays.json")
 try:
@@ -124,53 +141,87 @@ def trigger_scrap():
     run_scraping_job()
     return {"ok": True}
 
-# --- Trading API (Windows Proxy) ---
+# --- Trading API (Windows Proxy, 인증 필요) ---
 
-@app.get("/api/trade/balance")
+@app.get("/api/trade/balance", dependencies=[Depends(verify_admin)])
 def get_balance():
     """계좌 잔고 조회 (Windows AI Server Proxy)"""
-    print(f"[Proxy] Requesting Balance from {WINDOWS_AI_SERVER_URL}...")
+    logger.info(f"Requesting Balance from {WINDOWS_AI_SERVER_URL}")
     try:
         resp = requests.get(f"{WINDOWS_AI_SERVER_URL}/trade/balance", timeout=5)
-        
         if resp.status_code != 200:
-            print(f"[ProxyError] Balance Error: {resp.status_code} {resp.text}")
+            logger.error(f"Balance Error: {resp.status_code}")
             return JSONResponse(status_code=resp.status_code, content=resp.json())
-            
-        print("[Proxy] Balance Success")
         return resp.json()
+    except requests.JSONDecodeError:
+        return JSONResponse(status_code=resp.status_code, content={"error": f"Upstream error {resp.status_code}"})
     except Exception as e:
-        print(f"[ProxyError] Connection Failed: {e}")
-        return JSONResponse(
-            status_code=500, 
-            content={"error": "Connection Failed", "detail": str(e), "target": WINDOWS_AI_SERVER_URL}
-        )
+        logger.error(f"Balance Connection Failed: {e}")
+        return JSONResponse(status_code=500, content={"error": "Connection Failed"})
 
 class OrderRequest(BaseModel):
-    ticker: str         # 종목 코드 (예: "005930")
-    action: str         # "BUY" or "SELL"
-    quantity: int       # 주문 수량
-    price: int = 0      # 0이면 시장가
-    reason: Optional[str] = "Manual Order" # 주문 사유 (AI 기록용)
+    ticker: str
+    action: str
+    quantity: int
+    price: int = 0
+    reason: Optional[str] = "Manual Order"
 
-@app.post("/api/trade/order")
+@app.post("/api/trade/order", dependencies=[Depends(verify_admin)])
 def order_stock(req: OrderRequest):
     """주식 매수/매도 주문 (Windows AI Server Proxy)"""
-    print(f"[Proxy] Order Request: {req.dict()} to {WINDOWS_AI_SERVER_URL}...")
+    logger.info(f"Order Request: {req.action} {req.ticker} x{req.quantity}")
     try:
         resp = requests.post(f"{WINDOWS_AI_SERVER_URL}/trade/order", json=req.dict(), timeout=10)
-        
         if resp.status_code != 200:
-            print(f"[ProxyError] Order Error: {resp.status_code} {resp.text}")
+            logger.error(f"Order Error: {resp.status_code}")
             return JSONResponse(status_code=resp.status_code, content=resp.json())
-            
         return resp.json()
+    except requests.JSONDecodeError:
+        return JSONResponse(status_code=resp.status_code, content={"error": f"Upstream error {resp.status_code}"})
     except Exception as e:
-        print(f"[ProxyError] Order Connection Failed: {e}")
-        return JSONResponse(
-            status_code=500,
-            content={"error": "Connection Failed", "detail": str(e), "target": WINDOWS_AI_SERVER_URL}
+        logger.error(f"Order Connection Failed: {e}")
+        return JSONResponse(status_code=500, content={"error": "Connection Failed"})
+
+# --- AI Coach 프록시 (API 키를 서버에 보관) ---
+
+class AiCoachRequest(BaseModel):
+    model: str = "claude-haiku-4-5-20251001"
+    prompt: str
+    max_tokens: int = 1024
+
+@app.post("/api/stock/ai-coach")
+def ai_coach(req: AiCoachRequest):
+    """AI 포트폴리오 코치 — Anthropic API 프록시 (API 키 서버 보관)"""
+    if not ANTHROPIC_API_KEY:
+        raise HTTPException(503, "AI Coach not configured (ANTHROPIC_API_KEY missing)")
+
+    allowed_models = {"claude-haiku-4-5-20251001", "claude-sonnet-4-6"}
+    model = req.model if req.model in allowed_models else "claude-haiku-4-5-20251001"
+
+    try:
+        resp = requests.post(
+            "https://api.anthropic.com/v1/messages",
+            headers={
+                "Content-Type": "application/json",
+                "x-api-key": ANTHROPIC_API_KEY,
+                "anthropic-version": "2023-06-01",
+            },
+            json={
+                "model": model,
+                "max_tokens": req.max_tokens,
+                "messages": [{"role": "user", "content": req.prompt}],
+            },
+            timeout=30,
         )
+        if resp.status_code != 200:
+            logger.error(f"Anthropic API error: {resp.status_code}")
+            return JSONResponse(status_code=resp.status_code, content={"error": "AI API error"})
+        return resp.json()
+    except requests.Timeout:
+        return JSONResponse(status_code=504, content={"error": "AI API timeout"})
+    except Exception as e:
+        logger.error(f"AI Coach error: {e}")
+        return JSONResponse(status_code=500, content={"error": "AI Coach failed"})