feat: update routes with color and direction, improve admin routes view, and update firebase config/auth

backend/app/schemas/route.py

@@ -12,6 +12,8 @@ class RouteBase(BaseModel):
     description: Optional[str] = None
     origin_city: str
     destination_city: str
+    color: Optional[str] = "#FEE715"
+    direction: Optional[str] = "outbound"
     distance_km: Optional[float] = None
     estimated_duration_minutes: Optional[int] = None
     average_speed_kmh: Optional[float] = None
@@ -29,6 +31,8 @@ class RouteUpdate(BaseModel):
     description: Optional[str] = None
     origin_city: Optional[str] = None
     destination_city: Optional[str] = None
+    color: Optional[str] = None
+    direction: Optional[str] = None
     distance_km: Optional[float] = None
     estimated_duration_minutes: Optional[int] = None
     average_speed_kmh: Optional[float] = None
@@ -47,4 +51,3 @@ class RouteResponse(RouteBase):
 
     class Config:
         from_attributes = True
-