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

backend/app/services/harvester_bikes.py

@@ -0,0 +1,12 @@
+from .harvester_base import BaseHarvester
+
+class BikeHarvester(BaseHarvester):
+    def __init__(self):
+        super().__init__(category="motorcycle")
+        self.api_url = "https://api.example-bikes.com/v1/" # Példa forrás
+
+    async def harvest_all(self, db):
+        # Ide jön a motor-specifikus API hívás logikája
+        print("🏍️ Motor Robot: Adatgyűjtés indul...")
+        # ... fetch és mentés loop ...
+        await db.commit()