feat(qemu): support SATA CD-ROM interfaces

- Add per-drive IDE/SATA selection with backward-compatible IDE defaults
- Persist interfaces in nodes, templates, and appliance imports
- Add database migration support for versioned and unversioned databases
- Prevent partial updates when rejecting live interface changes
- Validate interfaces and support SATA media changes through the monitor

gns3server/db/models/templates.py

@@ -202,6 +202,8 @@ class QemuTemplate(Template):
     hdd_disk_interface = Column(String)
     cdrom_image = Column(String)
     cdrom2_image = Column(String)
+    cdrom_interface = Column(String, nullable=False, default="ide", server_default="ide")
+    cdrom2_interface = Column(String, nullable=False, default="ide", server_default="ide")
     initrd = Column(String)
     kernel_image = Column(String)
     bios_image = Column(String)

gns3server/db/tasks.py

@@ -146,10 +146,14 @@ async def connect_to_db(app: FastAPI) -> None:
                         from gns3server.db_migrations.versions.d9e8a2b7c401_image_inventory_reconciliation import (
                             upgrade,
                         )
+                        from gns3server.db_migrations.versions.e2a7c9d4b601_add_cdrom_interfaces import (
+                            upgrade as upgrade_cdrom_interfaces,
+                        )
 
                         with Operations.context(MigrationContext.configure(connection)):
                             upgrade()
                             upgrade_cdrom()
+                            upgrade_cdrom_interfaces()
 
                     await conn.run_sync(upgrade_inventory)
                     await conn.run_sync(run_stamp, alembic_cfg)