first commit

app/models/sr_level.py

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+from datetime import datetime
+
+from sqlalchemy import DateTime, Float, ForeignKey, Integer, String
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+class SRLevel(Base):
+    __tablename__ = "sr_levels"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    ticker_id: Mapped[int] = mapped_column(
+        ForeignKey("tickers.id", ondelete="CASCADE"), nullable=False
+    )
+    price_level: Mapped[float] = mapped_column(Float, nullable=False)
+    type: Mapped[str] = mapped_column(String(20), nullable=False)
+    strength: Mapped[int] = mapped_column(Integer, nullable=False)
+    detection_method: Mapped[str] = mapped_column(String(50), nullable=False)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=datetime.utcnow, nullable=False
+    )
+
+    ticker = relationship("Ticker", back_populates="sr_levels")