feat: T03+T04 backend - FastAPI, DB models, Rentman integration, admin auth, APScheduler

backend/app/models/contact.py

@@ -0,0 +1,16 @@
+"""Contact form submission model."""
+from sqlalchemy import Column, Integer, String, Text, Boolean, TIMESTAMP, func
+from app.database import Base
+
+
+class Contact(Base):
+    __tablename__ = "contacts"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    name = Column(String(255), nullable=False)
+    email = Column(String(255), nullable=False)
+    phone = Column(String(64))
+    message = Column(Text, nullable=False)
+    privacy_consent = Column(Boolean, nullable=False)
+    email_sent = Column(Boolean, default=False)
+    created_at = Column(TIMESTAMP, server_default=func.now())