feat: multi-robot architecture, car-robot rename, and credit-based OCR logic spec

backend/app/services/harvester_base.py

@@ -0,0 +1,34 @@
+import httpx
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from app.models.vehicle import VehicleCatalog
+
+class BaseHarvester:
+    def __init__(self, category: str):
+        self.category = category
+        self.headers = {"User-Agent": "ServiceFinder-Harvester-Bot/2.0"}
+
+    async def check_exists(self, db: AsyncSession, brand: str, model: str):
+        """Ellenőrzi, hogy az adott modell létezik-e már."""
+        stmt = select(VehicleCatalog).where(
+            VehicleCatalog.brand == brand,
+            VehicleCatalog.model == model,
+            VehicleCatalog.category == self.category
+        )
+        result = await db.execute(stmt)
+        return result.scalar_one_or_none()
+
+    async def log_entry(self, db: AsyncSession, brand: str, model: str, specs: dict = None):
+        """Létrehoz vagy frissít egy katalógus bejegyzést."""
+        existing = await self.check_exists(db, brand, model)
+        if not existing:
+            new_v = VehicleCatalog(
+                brand=brand,
+                model=model,
+                category=self.category,
+                factory_specs=specs or {},
+                verification_status="incomplete" if not specs else "verified"
+            )
+            db.add(new_v)
+            return True
+        return False