feat: complete trading system with FastAPI backend, web frontend, and auto-analysis

backend/models.py

@@ -0,0 +1,102 @@
+"""
+Pydantic模型 - 请求/响应数据验证
+"""
+
+from pydantic import BaseModel
+from typing import Optional, List
+from datetime import datetime
+
+# ═════════════════════════════════════════════════════════════════════
+# 持仓相关
+# ═════════════════════════════════════════════════════════════════════
+
+class PositionCreate(BaseModel):
+    stock_name: str
+    ticker: str
+    shares: int
+    cost_price: float
+    strategy: str = "C"  # A/B/C
+    notes: Optional[str] = None
+
+class PositionResponse(BaseModel):
+    id: int
+    stock_name: str
+    ticker: str
+    shares: int
+    cost_price: float
+    current_price: float
+    market_value: float
+    pnl: float
+    pnl_percent: float
+    strategy: str
+    created_at: datetime
+    notes: Optional[str]
+    
+    class Config:
+        from_attributes = True
+
+# ═════════════════════════════════════════════════════════════════════
+# 分析相关
+# ═════════════════════════════════════════════════════════════════════
+
+class StockAnalysisRequest(BaseModel):
+    stock_name: str
+    ticker: Optional[str] = None
+
+class SentimentData(BaseModel):
+    score: int  # -5 ~ +5
+    label: str
+    factors: List[str]
+    outlook: str
+    source: str = "llm"
+
+class TechnicalData(BaseModel):
+    current_price: float
+    ma5: float
+    ma20: float
+    ma60: float
+    rsi: float
+    atr: float
+    atr_percent: float
+    trend: str  # UP / DOWN / SIDEWAYS
+
+class SignalData(BaseModel):
+    action: str  # BUY / SELL / HOLD
+    score: float
+    confidence: str  # HIGH / MEDIUM / LOW
+    stop_loss: float
+    position_ratio: float  # 建议仓位比例
+    reasons: List[str]
+
+class AnalysisResult(BaseModel):
+    stock_name: str
+    ticker: str
+    signal: SignalData
+    sentiment: SentimentData
+    technical: TechnicalData
+    timestamp: str
+
+# ═════════════════════════════════════════════════════════════════════
+# 行情相关
+# ═════════════════════════════════════════════════════════════════════
+
+class QuoteData(BaseModel):
+    ticker: str
+    name: str
+    price: float
+    change: float
+    change_percent: float
+    volume: float
+    updated_at: str
+
+# ═════════════════════════════════════════════════════════════════════
+# 任务相关
+# ═════════════════════════════════════════════════════════════════════
+
+class TaskStatus(BaseModel):
+    task_id: str
+    status: str  # pending / running / completed / failed
+    progress: int  # 0-100
+    message: str
+    created_at: str
+    completed_at: Optional[str]