feat: vehicle catalog system and harvester robot implementation

backend/app/models/organization.py

@@ -16,14 +16,14 @@ class Organization(Base):
 
     id = Column(Integer, primary_key=True, index=True)
     name = Column(String, nullable=False)
-    org_type = Column(Enum(OrgType), default=OrgType.INDIVIDUAL)
+    # A stabilitás miatt VARCHAR-ként kezeljük a DB-ben
+    org_type = Column(String(50), default="individual") 
     
     # A flotta technikai tulajdonosa (User)
     owner_id = Column(Integer, ForeignKey("data.users.id"), nullable=True)
     
     # Üzleti szabályok
     is_active = Column(Boolean, default=True)
-    # Privát flotta (INDIVIDUAL) esetén False, cégeknél True
     is_transferable = Column(Boolean, default=True) 
     
     # Verifikáció
@@ -33,7 +33,20 @@ class Organization(Base):
     created_at = Column(DateTime(timezone=True), server_default=func.now())
     updated_at = Column(DateTime(timezone=True), onupdate=func.now())
     
-    # Kapcsolatok
-    vehicles = relationship("Vehicle", back_populates="current_org")
+    # Kapcsolatok (Asset-re hivatkozunk a Vehicle helyett)
+    assets = relationship("Asset", back_populates="organization", cascade="all, delete-orphan")
     members = relationship("OrganizationMember", back_populates="organization")
-    owner = relationship("User", back_populates="owned_organizations")
+    owner = relationship("User", back_populates="owned_organizations")
+
+class OrganizationMember(Base):
+    __tablename__ = "organization_members"
+    __table_args__ = {"schema": "data"}
+    id = Column(Integer, primary_key=True, index=True)
+    organization_id = Column(Integer, ForeignKey("data.organizations.id"), nullable=False)
+    user_id = Column(Integer, ForeignKey("data.users.id"), nullable=False)
+    role = Column(String, default="driver") 
+
+    organization = relationship("Organization", back_populates="members")
+
+# --- EZT A SORT TEDD KÍVÜLRE, A MARGÓRA ---
+Organization.vehicles = Organization.assets