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

backend/app/schemas/contact.py

@@ -0,0 +1,21 @@
+"""Pydantic schema for contact form."""
+from pydantic import BaseModel, EmailStr, field_validator
+
+
+class ContactCreate(BaseModel):
+    name: str
+    email: EmailStr
+    phone: str | None = None
+    message: str
+    privacy_consent: bool
+
+    @field_validator("privacy_consent")
+    @classmethod
+    def consent_must_be_true(cls, v: bool) -> bool:
+        if not v:
+            raise ValueError("privacy_consent must be True")
+        return v
+
+
+class ContactResponse(BaseModel):
+    success: bool