chore: finish icons builder

- finish icons builder in scripts.

scripts/bme.py

@@ -1,3 +1,77 @@
 import enum
-from typing import Optional, Self
+from typing import Optional
 from pydantic import BaseModel, RootModel, Field, model_validator, ValidationError
+
+
+class ShowcaseType(enum.StrEnum):
+    Nothing = 'none'
+    Floor = 'floor'
+    Rail = 'Rail'
+    Wood = 'wood'
+
+
+class ShowcaseCfgType(enum.StrEnum):
+    Float = 'float'
+    Int = 'int'
+    Bool = 'bool'
+    Face = 'face'
+
+
+class ShowcaseCfg(BaseModel):
+    field: str = Field(frozen=True, strict=True)
+    type: ShowcaseCfgType = Field(frozen=True)
+    title: str = Field(frozen=True, strict=True)
+    desc: str = Field(frozen=True, strict=True)
+    default: str = Field(frozen=True, strict=True)
+
+
+class Showcase(BaseModel):
+    title: str = Field(frozen=True, strict=True)
+    icon: str = Field(frozen=True, strict=True)
+    type: ShowcaseType = Field(frozen=True)
+    cfgs: list[ShowcaseCfg] = Field(frozen=True, strict=True)
+
+
+class Param(BaseModel):
+    field: str = Field(frozen=True, strict=True)
+    data: str = Field(frozen=True, strict=True)
+
+
+class Var(BaseModel):
+    field: str = Field(frozen=True, strict=True)
+    data: str = Field(frozen=True, strict=True)
+
+
+class Vertex(BaseModel):
+    skip: str = Field(frozen=True, strict=True)
+    data: str = Field(frozen=True, strict=True)
+
+
+class Face(BaseModel):
+    skip: str = Field(frozen=True, strict=True)
+    texture: str = Field(frozen=True, strict=True)
+    indices: list[int] = Field(frozen=True, strict=True)
+    uvs: list[str] = Field(frozen=True, strict=True)
+    normals: Optional[list[str]] = Field(frozen=True, strict=True)
+
+
+class Instance(BaseModel):
+    identifier: str = Field(frozen=True, strict=True)
+    skip: str = Field(frozen=True, strict=True)
+    params: dict[str, str] = Field(frozen=True, strict=True)
+    transform: str = Field(frozen=True, strict=True)
+
+
+class Prototype(BaseModel):
+    identifier: str = Field(frozen=True, strict=True)
+    showcase: Optional[Showcase] = Field(frozen=True, strict=True)
+    params: list[Param] = Field(frozen=True, strict=True)
+    skip: str = Field(frozen=True, strict=True)
+    vars: list[Var] = Field(frozen=True, strict=True)
+    vertices: list[Vertex] = Field(frozen=True, strict=True)
+    faces: list[Face] = Field(frozen=True, strict=True)
+    instances: list[Instance] = Field(frozen=True, strict=True)
+
+
+class Prototypes(RootModel):
+    root: list[Prototype] = Field(frozen=True, strict=True)