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)}")

backend/utils/nvs_generator.py

@@ -177,17 +177,16 @@ def _build_page(entries: List[bytes], slot_counts: List[int], seq: int = 0) -> b
     return page
 
 
-def generate(serial_number: str, hw_family: str, hw_revision: str) -> bytes:
+def generate(serial_number: str, hw_family: str, hw_revision: str, legacy: bool = False) -> bytes:
     """Generate a 0x5000-byte NVS partition binary for a Vesper device.
 
     serial_number: full SN string e.g. 'BSVSPR-26C13X-STD01R-X7KQA'
     hw_family: board family e.g. 'vesper-standard', 'vesper-plus'
     hw_revision: hardware revision string e.g. '1.0'
-
-    Writes the schema keys expected by ConfigManager (struct DeviceConfig):
-      serial      ← full serial number
-      hw_family   ← board family (lowercase)
-      hw_revision ← hardware revision string
+    legacy: if True, writes old key names expected by legacy firmware (pre-new-schema):
+              device_uid, hw_type, hw_version
+            if False (default), writes new key names:
+              serial, hw_family, hw_revision
 
     Returns raw bytes ready to flash at 0x9000.
     """
@@ -195,9 +194,14 @@ def generate(serial_number: str, hw_family: str, hw_revision: str) -> bytes:
 
     # Build entries for namespace "device_id"
     ns_entry, ns_span = _build_namespace_entry("device_id", ns_index)
-    uid_entry, uid_span = _build_string_entry(ns_index, "serial",      serial_number)
-    hwt_entry, hwt_span = _build_string_entry(ns_index, "hw_family",   hw_family.lower())
-    hwv_entry, hwv_span = _build_string_entry(ns_index, "hw_revision", hw_revision)
+    if legacy:
+        uid_entry, uid_span = _build_string_entry(ns_index, "device_uid",  serial_number)
+        hwt_entry, hwt_span = _build_string_entry(ns_index, "hw_type",     hw_family.lower())
+        hwv_entry, hwv_span = _build_string_entry(ns_index, "hw_version",  hw_revision)
+    else:
+        uid_entry, uid_span = _build_string_entry(ns_index, "serial",      serial_number)
+        hwt_entry, hwt_span = _build_string_entry(ns_index, "hw_family",   hw_family.lower())
+        hwv_entry, hwv_span = _build_string_entry(ns_index, "hw_revision", hw_revision)
 
     entries = [ns_entry, uid_entry, hwt_entry, hwv_entry]
     spans   = [ns_span,  uid_span,  hwt_span,  hwv_span]