feat(schemas): add group field to ParamSpec (basic/advanced)

server/schemas.py

@@ -7,6 +7,7 @@ from pydantic import BaseModel, Field, model_validator
 
 
 ParamType = Literal["float", "int", "bool", "enum"]
+ParamGroup = Literal["basic", "advanced"]
 ModelStatus = Literal["idle", "loading", "loaded", "error"]
 
 
@@ -25,6 +26,7 @@ class ParamSpec(BaseModel):
     step: float | int | None = None
     choices: list[str] | None = None
     help: str = ""
+    group: ParamGroup = "basic"
 
     @model_validator(mode="after")
     def _validate(self) -> "ParamSpec":

tests/test_schemas.py

@@ -80,3 +80,16 @@ def test_error_body_serializable():
 def test_generate_params_accepts_arbitrary_dict():
     g = GenerateParams(values={"temperature": 0.8, "cfg_weight": 0.5})
     assert g.values["temperature"] == 0.8
+
+
+def test_param_spec_default_group_is_basic():
+    p = ParamSpec(name="t", label="T", type="float", default=0.5, min=0.0, max=1.0)
+    assert p.group == "basic"
+
+
+def test_param_spec_advanced_group_round_trips():
+    p = ParamSpec(
+        name="seed", label="Seed", type="int", default=-1, min=-1, group="advanced",
+    )
+    assert p.group == "advanced"
+    assert p.model_dump()["group"] == "advanced"