some fixes

python_app/models/run_config_validation.py

@@ -4,7 +4,13 @@ from __future__ import annotations
 
 from typing import Any
 
-from python_app.models.run_config_schema import ComboModel, GprModel, RingEndpointModel, SwitchModel
+from python_app.models.run_config_schema import (
+    ComboModel,
+    ControlButtonModel,
+    GprModel,
+    RingEndpointModel,
+    SwitchModel,
+)
 
 def load_switch_payload(
     payload: dict[str, Any],
@@ -23,6 +29,20 @@ def load_switch_payload(
     target.invert_logic = bool(payload.get("invert_logic", target.invert_logic))
 
 
+def load_control_button_payload(
+    payload: dict[str, Any],
+    target: ControlButtonModel,
+) -> None:
+    """Populate control-button model from payload preserving defaults."""
+    target.enabled = bool(payload.get("enabled", target.enabled))
+    target.gpio_chip = str(payload.get("gpio_chip", target.gpio_chip))
+    target.pin = int(payload.get("pin", target.pin))
+    target.active_low = bool(payload.get("active_low", target.active_low))
+    target.bias = str(payload.get("bias", target.bias))
+    target.debounce_ms = int(payload.get("debounce_ms", target.debounce_ms))
+    target.action = str(payload.get("action", target.action))
+
+
 def load_ring_payload(payload: dict[str, Any], target: RingEndpointModel) -> None:
     """Populate ring endpoint model from payload preserving defaults."""
     target.name = str(payload.get("name", target.name))