update: overhauled firmware ui. Added public flash page.

backend/builder/models.py

@@ -6,12 +6,14 @@ class BuiltMelodyCreate(BaseModel):
     name: str
     pid: str
     steps: str  # raw step string e.g. "1,2,2+1,1,2,3+1"
+    is_builtin: bool = False
 
 
 class BuiltMelodyUpdate(BaseModel):
     name: Optional[str] = None
     pid: Optional[str] = None
     steps: Optional[str] = None
+    is_builtin: Optional[bool] = None
 
 
 class BuiltMelodyInDB(BaseModel):
@@ -19,6 +21,7 @@ class BuiltMelodyInDB(BaseModel):
     name: str
     pid: str
     steps: str
+    is_builtin: bool = False
     binary_path: Optional[str] = None
     binary_url: Optional[str] = None
     progmem_code: Optional[str] = None