Store phone RAM as a float so sub-GB phones can be served

TechAPI #257 corrected storage-as-RAM on 2006-2012 phones (original
iPhone 0.125 GB). SmartphoneRead.ram_gb was int, so the static dump
crashed on those records. Store it as float, type the schema int | float,
and emit whole values as ints so the other ~90k pages keep "ram_gb": 8.

Author: Seungpyo1007

app/models/smartphone.py

@@ -29,7 +29,7 @@ class Smartphone(SQLModel, table=True):
     msrp_usd: int | None = None
 
     # Memory
-    ram_gb: int
+    ram_gb: float  # sub-GB on 2006-2012 phones (original iPhone 0.125)
     storage_options_gb: list[int] = Field(default_factory=list, sa_column=Column(JSON))
     variant: dict[str, Any] = Field(default_factory=dict, sa_column=Column(JSON))
 

app/schemas/serializers.py

@@ -29,6 +29,11 @@
 PREFIX = settings.api_version_prefix
 
 
+def _whole_as_int(value: float) -> int | float:
+    """8.0 → 8 so whole-GB phones keep their integer JSON; 0.125 stays a float."""
+    return int(value) if float(value).is_integer() else value
+
+
 def url_for(resource: str, slug: str) -> str:
     """Build a versioned resource URL, e.g. ``/v1/smartphones/galaxy-s25``."""
     return f"{PREFIX}/{resource}/{slug}"
@@ -250,7 +255,7 @@ def smartphone_read(
         soc=soc_summary(soc, soc_manufacturer),
         release_date=phone.release_date,
         msrp_usd=phone.msrp_usd,
-        ram_gb=phone.ram_gb,
+        ram_gb=_whole_as_int(phone.ram_gb),
         storage_options_gb=phone.storage_options_gb,
         variant=phone.variant,
         display=phone.display,

app/schemas/smartphone.py

@@ -36,7 +36,7 @@ class SmartphoneRead(BaseModel):
     soc: SoCSummary
     release_date: date
     msrp_usd: int | None = None
-    ram_gb: int
+    ram_gb: int | float
     storage_options_gb: list[int]
     variant: dict[str, Any]
     display: dict[str, Any]