fix: NVS Generator. cosmetic: Changed CloudFlash page a bit

backend/public/router.py

@@ -123,6 +123,11 @@ class NvsRequest(BaseModel):
     serial_number: str
     hw_type: str
     hw_revision: str
+    nvs_schema: str = "new"  # "legacy" | "new"
+
+    @property
+    def legacy(self) -> bool:
+        return self.nvs_schema == "legacy"
 
 
 @router.post("/cloudflash/nvs.bin")
@@ -149,6 +154,7 @@ async def generate_public_nvs(body: NvsRequest):
             serial_number=sn,
             hw_family=hw_type,
             hw_revision=hw_revision,
+            legacy=body.legacy,
         )
     except Exception as e:
         raise HTTPException(status_code=500, detail=f"NVS generation failed: {str(e)}")